Abstract: A heating system for an enclosed container or structure having a floor includes a tank underlying substantially the entire surface area of the floor and defining an internal cavity. A fluid inlet and a fluid outlet are interconnected with the tank and with a heater via inlet and outlet lines. The heater is located exteriorly of the structure, and provides heated fluid to the tank inlet which is circulated through the internal cavity of the tank and is discharged through the fluid outlet of the tank. Heat from the tank dissipates through the floor and into the interior of the container or structure. The structure may be in the form of a container for storing supplies such as petroleum products which are to be maintained above a certain temperature to provide proper viscosity, or the structure may be in the form of a hunting blind or ice fishing shanty. The tank is pitched such that the fluid inlet is at an elevation higher than that of the fluid outlet.

Abstract: A cooling device for texturized yarns comprises a rotating drum equipped with a perforated wall, a unit capable of depositing the yarn exiting from a texturizing nozzle on the perforated surface, and a device capable of aspirating air from the inside of the drum, and elements are provided capable of circulating a refrigerating fluid inside the drum as well as elements, external, with respect to the drum, adapted to cool the air that is aspirated through the holes of the drum to cool the yarns.

Abstract: A process and apparatus for heating gas in which a flow rate D0 of a warm fluid is caused in an input line, connected at its upstream portion to a source of warm fluid and at its downstream portion to the inlet of one of the passages of a heat exchanger; a portion of the flow D0 is diverted before it reaches the inlet of the first passage, into a branch line connected at its upstream portion to a so-called primary point of the inlet line located between the source of warm fluid and the inlet of the first passage; the gas to be heated is caused to circulate in another passage of the exchanger, so as to effect heat exchange between the gas to be heated and the warm fluid, thereby to obtain at the outlet of the second passage a warmed gas, and at the outlet of the first passage, a cooled warm fluid; the temperature of the warmed gas is controlled by the aid of a flow rate regulating valve located in a selected position in the inlet or outlet line.

Abstract: A dehumidifier for use in a bathroom or the like utilizes the cold surface of a heat exchanger to condense moisture, and the hot surface of a heat exchanger to warm the air after the moisture is removed. The cold surface is provided by having the cold water supplied to the room pass through the cold heat exchanger; and, the hot surface is provided by having the hot water supplied to the room head pass through the hot heat exchanger. The heat exchangers may be concentric circles, so a recirculation fan centrally of the heat exchangers will move air across the two, or may be rectangular with a plenum at each end so air moves across the two. A drip pan beneath the cold heat exchanger catches the condensate. The circular heat exchangers may be less than a full circle, and a light housed in the space defined. Also, an exhaust fan may be mounted concentrically with the recirculation fan in the circular heat exchanger, or may be mounted in the output plenum of the rectangular device.

Abstract: Two stop valves, associated with bypass ducts containing energy absorbing devices, enable an adjustable fraction of the hot fluid to be diverted past left and right hand heating radiators, so that any change in the adjustment of the fluid flow in either of the radiators has no effect on the fluid flow in the other radiator.

Abstract: A cogeneration system includes a gas engine generator acting as private power generating equipment for generating power to be supplied to private electricity consuming equipment, and a source-side heat exchanger connected to the gas engine generator through an exhaust heat recovery piping to act as a heat source. A heat medium is heated and evaporated through a heat exchange in the source-side heat exchanger. The resulting vapor is allowed to flow upward to be supplied to room heating heat exchangers. The vapor is liquefied through a heat exchange in the room heating heat exchangers. The resulting liquid is allowed to flow downward back to the source-side heat exchanger. This natural circulation of the heat medium is used for the heating purpose. Surplus exhaust heat is released through a generator to control the heat medium supplied to the room heating heat exchangers.

Abstract: Unit for distribution and/or collection of cold and/or of heat, including: (a) a main exchanger (1) of heat between a refrigerant fluid (2, 21, 22) and a heat transfer fluid (3); (b) a means for producing cold with a means for heat exchange with the heat transfer fluid; (c) a closed main circuit (3) for continuous free circulation of the heat transfer fluid; (d) at least one heat transfer fluid drawing loop (7 to 11); characterized in that the flow cross-section of the main circuit (3), the maximum refrigerating power of the means for producing cold, Pmax, expressed in W, and the main heat exchanger (1) are sized relative to one another in order to satisfy, in operation, approximately the relationship: P.sub.Max =f.sub.m .times.c.times..DELTA.T, in which: f.sub.m is the mass flow rate of the heat transfer fluid, expressed in kg/s; c is the mass heat of the heat transfer fluid, in liquid form, expressed in J/kg/.degree.K.; .DELTA.

Abstract: An integrated zoning circulator includes a priority controller, integral with the zoning circulator, for determining the priority given to the circulator in an individual zone of a multi-zone hydronic system. The zoning circulator also includes a priority circulator system for a multi-zone hydronic system having a zoning circulator at each zone, a plurality of control boxes each having a thermostat, one control box being associated with each circulator, and, a plurality of priority controllers, one priority controller being associated with each control box. Each priority controller, when activated, functions to assure that when the associated thermostat calls for the circulator to operate, other circulators in non-priority mode are prevented from operating simultaneously.

Abstract: A cogeneration system includes a gas engine generator acting as private power generating equipment for generating power to be supplied to private electricity consuming equipment, and a source-side heat exchanger connected to the gas engine generator through an exhaust heat recovery piping to act as a heat source. A heat medium is heated and evaporated through a heat exchange in the source-side heat exchanger. The resulting vapor is allowed to flow upward to be supplied to room heating heat exchangers. The vapor is liquefied through a heat exchange in the room heating heat exchangers. The resulting liquid is allowed to flow downward back to the source-side heat exchanger. This natural circulation of the heat medium is used for the heating purpose. Surplus exhaust heat is released through a generator to control the heat medium supplied to the room heating heat exchangers.

Abstract: An electronic thermostat having high and low voltage control capability and varied functional capabilities. The thermostat is particularly suited for use with fan coil heating and cooling units. Specifically the thermostat uses relays to actuate external devices such as heating and cooling equipment, fans and dampers. The use of relays permits control voltages for these external devices to be different (e.g. 24 VAC, 208-230 VAC or 277 VAC).

Abstract: A process is disclosed for adjusting the valve position of flow control valves which govern the flow of a heat exchange fluid to a plurality of individually controlled zones. The process resides primarily in a system controller in communication with a number of separate zone controllers. The system controller periodically obtains temperature and mode of operation information from each zone controller and thereafter computes the amount of time necessary to change the temperature by one degree in each zone. The computed amount of time per degree change in temperature is compared with the average for all zones in a similar mode of operation. Offsets are calculated for active flow control valves in each zone depending on whether the computed amount of time per degree change in temperature is above or below the average for all corresponding zones in the same mode of operation.

Abstract: An automatic test apparatus for use in a test method to determine antimicrobial drugs. The test apparatus comprises a first aluminum, electrically heatable block with holes for the insertion of test containers and a separate, second cooling aluminum block adapted to be placed periodically in contact with the heated aluminum block to cool rapidly the heated block. The test apparatus includes timed signals existing therein to alert the test user. The test apparatus is adapted to provide for the timed sequential solid heating and cooling of one or more test containers containing a test sample.

Abstract: A thermostat capable of accommodating primary and secondary loads is taught. Preferably a hydronic valve actuator is the primary load and a fan coil of variable speed is the secondary load. Temperature sensing is electronic and both heating and cooling as well as multiple fan modes are accommodated.

Abstract: A retrofit air conditioning system for use with an existing induction air conditioning system is disclosed, wherein the existing system includes a central fan unit supplying air to a plurality of distribution units in corresponding rooms. The retrofit air conditioning system includes a retrofit air conditioning unit sized for receipt in an existing distribution unit. The retrofit air conditioning unit includes a fan downstream of an adjustable damper for inducing conditioned air from the central fan unit and for inducing recirculated air from the room. A microcontroller receives a temperature signal from a thermostat and produces a damper signal to adjust the damper in accordance with the sensed temperature. Also disclosed is a retrofit central fan unit for use with the retrofit induction unit, wherein the retrofit central fan unit supplies varying amounts of conditioned air to the distribution units to maintain a constant supply pressure.

Abstract: A method and apparatus for emulating a perimeter induction unit, in which the perimeter induction unit is replaced by an emulation unit carried in a plenum above the space to be heated or cooled. A temperature sensor is mounted within the space, and a computer provides programmed control, either centrally or locally. The emulation unit is connected to the primary air ducts and secondary liquid source formerly used for the perimeter induction unit. It includes a primary air inlet for accepting and regulating a flow of ventilated, preconditioned primary air from the primary air ducts, and a secondary air inlet for accepting a flow of return air from the space as well as filtering the return air and passing it over a heat exchanger carrying secondary cooling liquid at a preselected temperature. Primary and secondary air is mixed within a mixing chamber and delivered to the space by a blower at a preselected combined air volumetric flow rate.

Abstract: An unit-type air conditioning system is provided to enable low-load operation of an absorption chiller heater, to thereby improve the load responsiveness, and to use such a chiller heater as an outdoor unit. A plurality of burners are provided in a high temperature generator of the absorption chiller heater, thereby enabling the low-load operation. A refrigerant return valve is provided so as to speed up the stop operation. Flow rates of pumps are controlled in accordance with detected values of temperatures in the chiller heater and a load change, thus improving the load responsiveness. Further, in the air conditioning system with this chiller heater serving as an outdoor unit, required operation prediction is performed on the basis of outer signals from load units and the like, and prediction control according to its result is conducted, further improving the load responsiveness.

Abstract: The apparatus of the present invention comprises a hydronic distribution system using prefabricated, flexible cable containing plastic tubing to provide liquid supply and return conduits for the hydronic system. The plastic conduits are enclosed in a foam thermal insulation material which is encased in a flexible, moisture impervious shell. In an alternate embodiment of the invention, the flexible cable includes electrical conductors for supplying power to a fan and for carrying an electrical control signal from a thermostat. The flexible cable thus described can be installed in a building easily and quickly in a manner similar to that currently used for electrical cable.

Abstract: A control system for a fan coil of an air-conditioner having a fan for heat exchange, and a coil unit through which cool or hot water circulates to cool or heat the room by heat exchange with the room air, wherein an automatic change is carried out between a cooling operation and a heating operation, referring to the temperature of distributed cool or hot water detected by a water temperature sensor, and a room temperature is controlled by opening or closing an electromagnetic valve disposed in a water distribution system, referring to a room temperature detected by a room temperature sensor. When the system is turned on from its inoperative state, the electromagnetic valve is forcibly opened for a predetermined period of time for the control system for a fan coil to sufficiently detect the temperature of cool or hot water, and to prevent an erroneous change of operation.

Abstract: An interior thermal conditioning method and apparatus with improved zone control is disclosed. The thermal conditioning apparatus, such as a heat pump assembly, generates a desired thermal condition which is conveyed by a thermal distribution medium to a number of zones within a multiple zone building. Each zone includes a heat exchange device for receiving the thermal distribution medium. Each zone also includes a thermostat which is used to set a desired temperature range and to indicate the prevailing temperature. When the prevailing temperature is inconsistent with the desired temperature range, a conditioning request is generated. Rather than immediately responding to the conditioning request, the heat pump controller assesses the temperature of the thermal distribution medium to determine whether it is within a target range.

Abstract: A system for heating and cooling a building is disclosed. A watercooler and a cold-water pump continuously circulates cold water through a fire sprinkler piping system. A waterheater and a hot-water pump circulates hot water through a domestic hot-water piping system. A plurality of fan-coil assemblies located throughout the building may access either the cold water flowing in the fire sprinkler piping system or the hot-water in the domestic hot-water piping system. The fan-coil assemblies include a fan and a coil. Depending upon whether hot water or cold water is flowing through the coil, air circulated by said fan may be heated or cooled for climate control.

Abstract: A heat installation for buildings, with water as the heat transmitting medium which comprises a forward pipe and a return pipe (19 and 18 respectively) as well as radiators (11) connected to said pipes. Said installation is designed as a building element system and comprises differently designed buildings elements (1-10), which are strip- and block-shaped and can be inserted into each other and with which said forward pipe and said return pipe are integral parts. Said installation includes a main connection element (1), connection elements (2), inner corner and outer corner elements (3 and 4 respectively), threshold transition elements (5, 7), thresholds (6), radiator connection elements (8) and terminal parts (9).

Abstract: A multi-level access flooring system having a work area floor and at least one intermediate floor, defining at least one isolated wireway between the intermediate floor and the work area floor, and at least one relatively unobstructed plenum, between the intermediate floor and the building floor, together with at least one HVAC inlet to such plenum and a plurality of individual outlets, with each outlet having its own flow control damper, together with a suitable control system for positioning the individual dampers and regulating the heating/cooling load of the HVAC unit to achieve localized as well as generalized control of climate within a building room.

Abstract: An air conditioning system characterized by a multiplicity of conditioned zone and downsized compressors within separately operable mechanical refrigeration air conditioners which can be of varied types including simple refrigeration units or heat pump units and either of which can be air source or water source, and each of which is equipped with a wet economizer air cooling coil, and which also can be equipped with a charging coil, and all of which are connected by control valves into a common support system for the on-peak storage of chilled water and tempered water and with an ice maker supplying ice water, the compressors of the air conditioners and of the ice maker being deactivated during on-peak power periods, and the tempered water of the support system incorporating a fire sprinkler system.

Abstract: A zoned air conditioning system using a room air terminal which has the same horizontal dimensions as a floor tile of a raised tile floor such that the terminal may replace one tile in such a floor. The terminal includes a cool air inlet below the floor for drawing in cooling air circulated in the under floor space and a return air inlet in the top surface of the terminal. The cool air and return air is mixed in a mixing chamber and drawn from the mixing chamber by a fan and returned to the room through an outlet vent. The ratio of cool air to return air mixed in the mixing chamber is controlled by a modulating damper which is controlled in response to the temperature of the return air in order to control the room temperature in the region of the terminal in accordance with an adjustable set point. A heater is also provided in the terminal for those occasions where the return air is cooler than the set point.

Abstract: In order in a facade comprising hollow uprights and hollow upper and lower transverse crossbars to be able to dispense with an expensive air-conditioning installation, a cross-stream blower is arranged under a railing crossbar. Over the cross-stream blower there is either provided a star ribbed pipe or the railing crossbar is constructed in several parts and provided with laminations the function of which is to serve in the pre-cooling or pre-heating of air drawn from a room of the building by the cross-stream blower, the pre-cooling or pre-heating taking place as the air is discharged from the blower and before it is sent back into the room. Pre-heated or pre-cooled air may be returned to the room by way of the railing crossbar, by way of and from the hollow uprights or by way of and from the upper transverse crossbar. A filter provided in advance of the cross-stream blower inhibits the passage of any health-hazardous dust or bacteria from reaching the blower or being transmitted back into the room.

Abstract: A hydronic room heating device in the form of a baseboard heating panel of air entrained concrete with concrete radiating fins molded on the back of the panel with an upper concrete heating element section positioned to allow air flow past the fins upwardly and out through the opening between the upper element and the panel using low temperature heated water from solar heated systems.

Abstract: A standardized curtain wall unit is disclosed which is intended for use with any required number of other similar curtain wall units to provide a unit type curtain wall assembly capable of room temperature control. The curtain wall unit comprises a plurality of frame members joined into a rectangular shape, defining openings which are closed by double glazing or like panels or panes. All the frame members are of identical cross-sectional shape, with a passageway for a heat transfer fluid and a mounting recess formed longitudinally therethrough in side-by-side relation to each other. The fluid passageway is disposed inwardly of the mounting recess, or closer to the middle of the curtain wall unit, and the mounting recess is open outwardly. This cross-sectional shape of the frame members offers several advantages in constructing the unit type curtain wall assembly from a plurality of such curtain wall units and auxiliary parts such as seals, couplings, and piping.

Abstract: A fan coil unit 13 is mounted in an underfloor plenum with its intake 14 flush with the floor. The unit 13 feeds fan air terminals 11 and 12 each of which has an aperture 26 which vents air into the plenum space when the fan of the relevant unit is not running and through which air may be drawn from the plenum space when the unit 13 is not operating.

Abstract: A cooling and heating air jet device in a building interior or exterior structure including a framework of hollow vertical and horizontal wall support members is disclosed. The framework of hollow wall support members forms an air duct through which cooling or heating air is passed. A selected one of the wall support members is formed with a plurality of air jet openings spaced in the longitudinal direction of the same. The hollow interior of the selected one wall support member is divided into two adjacent and parallel chambers by a partition wall having a plurality of communication holes spaced in the longitudinal direction of the same. One of the chambers forms a part of the air duct and a first pressure equalizing chamber and the other one of the chambers forms a second pressure equalizing chamber. The plurality of air jet openings are formed in the side wall of the second pressure equalizing chamber.

Abstract: An apparatus for controlling temperature in a unit type curtain wall for arraying the outside of a building wherein pipings within the body of the building can be minimized and the air conditioning effect at the window can be sufficiently achieved. The temperature control apparatus comprises vertical and horizontal frame members having hollow portions as air flowing passages through which conditioned air flows, wherein respective hollow portions of the vertical frame members adjacent to left and right and opposite to top and bottom at their respective one ends are respectively arranged at opposed top and bottom ends in such a manner of allowing them to communicate with each other only in relation to top and bottom by the interposition of cylindrical connecting members thereby forming vertically communicating air flowing ducts, respectively, which are independent of each other to left and right.

Abstract: An improved modular air conditioning apparatus utilizing heat pump assemblies and capable of heating or cooling adjacent room areas separated by a common wall partition. The apparatus comprises a first housing compartment and a second housing compartment which are supported by vertical riser ducts, each such housing compartment disposed adjacent to one of the room areas and characterized by three access sides, and one non-access side. One access side in each housing compartment is selected as a component access side. Adjacent non-access sides of each housing compartment define a vertical riser duct. A heat pump assembly is disposed in each housing compartment and a blower draws air through the condenser-evaporator thereof. All working components are removable through access ports provided by the removal of intake grille assemblies disposed at the component access side selected for each housing compartment placement.

Abstract: An integrated heating and cooling system which makes maximum use of available energy regardless of seasons. The chiller is used throughout the year to transfer heat between the chilled water circuit and either the heated water circuit or the cooling tower. Also, cooling tower water can be injected directly into the chilled water circuit.

Abstract: An air filtering unit for blowing only filtered air into a room of a building having a central air conditioning air duct outlet therein, includes an electric blower unit having an air inlet and an air outlet. An air guide system conducts all air flowing through the duct outlet into the air inlet of the blower unit. A filter disposed between the air duct outlet and the air inlet of the blower unit filters all air flowing into the blower unit. Air flowing through the outlet of the blower unit is directed into the room in which the air filtering unit is installed or is directed by means of a tubular conduit back through the central air conditioning duct to an outlet duct into another room. The air filtering unit is mounted in a housing disposed over the air duct outlet and has a door which can be opened to expose the filter to facilitate removal and replacement of the filter.

Abstract: Solar collectors whose absorbers are made of a conventional building material form the outer surface of the roof and wall of a building. Air flows behind the absorbers and heat is transferred to the air by expanded metal conductors which extend from adjacent the outside surfaces of the absorbers into the flow passages. Heat from the collectors is stored in a system including a cold tank of liquid, a heat tank of liquid at a higher temperature, and a hot water tank of liquid at an even higher temperature. A heat pump may transfer heat from the cold tank to the heat tank and from the heat tank to the hot water tank. Cold and heat exchangers are provided in each tank for receiving heated air from the collectors and transferring heat therefrom to the liquid in the tank; and the exchangers in the cold and heat tanks transfer heat between the liquid in the tanks and air from or to the building. Air flows to and from the collectors, tanks, and buildings in ducts formed by the floor and roof beams and wall slabs.

Abstract: A multi-duct air conditioning system integrating ventilation, humidity control, filtering, chilling and heating, and distribution of liquids, embodied in a combination of means operating at peak efficiency under varied conditions, characterized by a dual-stage refrigeration heat-pump apparatus with separate condensing of refrigerant subsequently comingled and expanded in a single evaporator supplying chilled water, and by a dual-media air conditioning apparatus with refrigeration chilled water and evaporatively cooled water for heat absorption from ventilation units, luminaires and space zones.

Abstract: A building heating and cooling system which eliminates the need for a dual circuited condenser in a water to water heat pump. The system includes a cooling tower water circuit, a device for cleaning and treating the water in the cooling tower water circuit, and a hot water circuit in the building. A single circuit condenser and a refrigerant compressor are used to heat condenser water. Apparatus is provided to inject the heated condenser water either into the hot water circuit or to the cooling tower. The heat pump also includes a cooler to provide a source of low temperature heat from a chilled water circuit in the building.

Abstract: An integrated baseboard heating, air conditioning and humidity control system comprises a hollow baseboard having an air conditioning discharge vent and a separate heating and humidifying compartment, the air conditioning vent being connected by a duct system to an air conditioner unit, the heating/humidifying compartment receiving a baseboard heater, a humidification water pan adjacent the heater and a condensation drip pan below the humidification pan, the humdification system including parallel cold and hot water branches, and the heater and hot water humidity systems having separate hot water heaters.

Abstract: This disclosure relates to an apparatus for controlling the rate of heat transfer of one of the heat exchange coils in a heat pump installation.

Abstract: Apparatus for climatizing a building comprising means including elements of a structural frame adapted to provide a portion of a facade for such building, at least a portion of said elements being hollow, said hollow elements being formed to provide for movement therethrough of fluid for supplying heat thereto or extracting heat therefrom, means for the delivery of fluid to and for the direction of fluid from said hollow elements, and said hollow elements being arranged for the mounting of facade elements to extend in bridging relation thereto and to be conditioned thereby.

Abstract: An improved modular air conditioning apparatus featuring selective panel enclosures, plug-in controls, orientation selection and servicing capability for the simultaneous provision of air conditioning to a first room area and a second room area, the apparatus disposable between wall partitions or the like separating the first and second room areas. The apparatus comprises a frame assembly having a first open box frame and a second open box frame, each having three access sides. A blower and heat exchanger are disposed in an operating section of each of the open box frames, and these are removable through an access port provided by the removal of an intake grille disposed at one of the access sides on each of the open box frames. Riser pipes disposed in a vertical riser duct connect with other like units and supply hot or chilled water to heat exchangers.

Abstract: The roller comprises a core and a shell secured to said core. The shell is made up of two coaxial pipes, i.e. an inner pipe secured to the core in the middle and an outer pipe fastened to the inner pipe in the middle and at the ends. This allows the shell to be made of small-diameter thin-walled pipes thus reducing the roller deflection and decreasing considerably the weight both of the roller proper and of the equipment utilizing said roller.

Abstract: The disclosure relates to a method of air conditioning a multi-storey building having a core area and a plurality of occupied spaces disposed around said core area and arranged in zones. The method includes the steps of recirculating air in each said zone from the occupied spaces in said zone to a common fan compartment and back to said spaces through individual ducts, while maintaining the air entering said ducts at a temperature at least substantially as high as the temperature of the air returned to the fan compartment from said spaces. The air flowing through each duct is individually cooled in the event that the temperature of the air in the associated space is above the required temperature. Conditioned fresh air is delivered to the core area of the building for cooling said area and make-up air is delivered to the individual zones of the building from said conditioned fresh air as required. An air conditioning system is also disclosed.

Abstract: An oven, which maintains food at a low temperature to preserve its properties for subsequent unattended cooking at high oven temperatures, is cooled and heated by a flowing liquid thermal exchange fluid which is cooled and heated by flowing through thermal sources separate from the oven. Within a food processing compartment of the oven, heat is exchanged between an enclosed chamber heat exchanger and the food by air convection.In a preferred embodiment, the oven is one of a plurality of domestic appliances similarly heated and cooled by a liquid thermal exchange fluid. The oven and the other appliances share in common an assembly of thermal reservoirs which provides thermal exchange fluid under pressure at substantially the temperatures of the thermal reservoirs which include a hot and a cold reservoir.

Abstract: Disclosed are suitably structured storage tanks which substantially eliminate blending problems in thermal storage systems. More particularly is disclosed floatable baffle and flexible diaphragm means for preventing blending of different temperatures of water in a storage tank. Also disclosed is a thermal storage system wherein the tanks are at the base of a building and which includes the use of energy conserving turbines to further enhance the benefits of thermal storage. Direct pumping entry of the storage water at a low pressure is permitted into the load circuit which is at a substantially higher pressure and the turbine conserves energy required in the pumping.

Abstract: A heat transfer arrangement operable selectively for heating, cooling and tempering in which a heating and cooling system, and a pump are applied under predetermined flow conditions, whereby directed and substantially constant speed prevails over the entire cross-section of the flow path. The heating system with the pump and also the cooling system are located in a common tank which serves simultaneously as a collector tank for the heat carrier medium and an expansion tank of the arrangement. The heating system has several straight tube sections, running parallel to one another for an extended length, to transport the heat carrier medium. The heating system is provided with electrical heating elements in the form of rods which are inserted in the parallel straight tube sections, and leave a free flow-through cross-section.

Abstract: An improved modular air conditioning apparatus featuring selective panel enclosures, plug-in controls, orientation selection and servicing capability, the apparatus comprising an open box frame having three access sides which are each selectable for enclosure or component orientation. A blower and heat exchanger are disposed in an operating section of the frame, and these are removable through an access port provided by the removal of an intake grille disposed at one of the access sides. Riser pipes disposed in a vertical riser duct connect with other like units and supply hot or chilled water to the heat exchanger. A plug-in control assembly senses an external temperature and controls the operation of the blower which draws air through the heat exchanger and blows the air into a plenum section of the frame from which the air exits through an outlet grille.

Abstract: A control system for the control of temperature within a building is provided to affect both cooling and heating of the building as required during the winter season with a minimum energy input to the building. Heat transfer is provided between the more interior areas of the building and the more exterior areas of the building so that heat generated in the more interior portions of the building is not entirely wasted by being exhausted directly to the cold outdoors. Chilled water refrigeration equipment, standard forced air systems and outdoor air are utilized to affect the desired heating, cooling and heat transfer within the building.

Abstract: This invention relates to the air conditioning of a building complex comprised of one or more zones, utilizing solar insolation and terrestrial re-radiation to a maximum extent and supplemented by external energy as may be required. The principle of thermodynamic availability is employed in a water source system advantageously storing heated and chilled fluid for subsequent heat exchange, and by the diversion of high heat range fluid through a Rankine cycle prime mover for motivation of vapor compression refrigeration or the generation of electrical power dependent upon the availability of solar energy and the demand of said refrigeration, whereby heat energy is claimed and reclaimed and made available to reduce the net energy requirements necessary to provide both heating and cooling of said building complex zones.

Abstract: A forced air range is part of a domestic appliance system which includes hot and cold thermal reservoirs. A thermal exchange fluid can circulate between a heat exchanger in one of the thermal reservoirs and a heat exchanger within a duct in the forced air range. For operation, an ordinary houseware such as a pot, is placed on the range and temperature and heating rates are programmed. A blower circulates air through the heat exchanger and under the houseware. Thermal exchange fluid flows through the heat exchanger to maintain the circulating air at the programmed temperature.

Abstract: Storage apparatus is used for storage of large quantities of heat, or for large quantities of "cold," and "dryness," or for simultaneous storage of heat and cold, and dryness. The heat, or cold, or both, may be produced during off-peak power periods, or by solar energy, or both. One example of utility of the invention is for use during the winter to store solar produced heat, or during the summer for cold storage produced by solar energy or by nighttime off-peak electric power. And, for springtime or autumn weather, the apparatus is usable to simultaneously store heat and cold. Then, for a chilly night or a cold spell, stored heat is available, or for a hot evening or a hot spell, stored coldness is available. Thus, the system for climate control of the home or other space may be switched from heating to air conditioning instantly.Zone heating and air conditioning are provided.