Abstract: An apparatus for heating water having three vertically aligned water heating process sections. The upper section includes an annular water storage tank disposed around a combustion chamber having a downward firing burner. The intermediate section, disposed vertically below the upper section receives flue gas from the combustion chamber, which flue gas is cooled and dehumidified, producing a hot condensate which collects in a passive condensate flow control device disposed proximate the bottom of the intermediate section. The lower section, disposed vertically below the intermediate and separated therefrom by the passive condensate flow control device receives hot condensate from the flow control device, which is used to preheat and humidify air, such as room air, which is then recycled to the combustion process of the upper section for use as combustion air.

Abstract: A first period during which drain is not substantially generated on a surface of a water tube (4) of a heat exchanger (B1), and a second period as a transition during which an amount of drain on the surface of the water tube (4) is increased are provided. There are a plurality of kinds of fan-controlling data in which operation control contents of the fan (13) in the first and second periods in correspondence with change of conditions of entering water temperature or combustion level of the burner (1). The fan-controlling data are stored in a data table (90) of a controller (9). The controller (9) controls the fan (13) in accordance with the data, and an initial air-fuel ratio of combustion driving of the burner (1) is stabilized.

Abstract: A highly-efficient, hot-water generating, car-mounted heater with an internal liquid flow path includes a heater unit and a case. The heater unit includes a PTC element, an electrode plates, an insulating sheet, a tube body, a seal, and a radiator. The radiator is provided on the radiation faces of the tube body. The radiator has a plurality of fins, and a plurality of flow paths that are partitioned by the plurality of fins and extend in a direction that intersects with the longitudinal direction of the tube body. The heater unit is housed in the case with one ends of the flow paths of the radiator made to oppose the flow inlet and the other ends of the flow paths made to oppose the flow outlet.

Abstract: A structure of a dry heating system, and a method for constructing the same are disclosed. An upper board stacked on a heat radiator has a double-layer structure comprising first upper board elements and second upper board elements in order to prevent steps from being formed at seaming portions formed on the upper portion of the dry heating system, thereby maintaining flatness of the upper board, and reducing any bending of the upper board, in which the first upper board elements constitute a lower portion of the double-layer structure, and serve to protect the heat radiator while supporting a weight load, and the second upper board elements constitute an upper portion of the double-layer structure, and serve to maintain the flatness of the upper board by removing the steps, thereby ensuring excellent quality in construction of the dry heating system.

Abstract: The invention is directed to a combination heater and electrical generator designed to allow continual use of the heating system in the absence of an external source of electricity. The system shares fuel and electrical inputs and also shares exhaust outputs so to facilitate ease of use installation as well as affording a small installation footprint.

Abstract: A washing system provided with a washing container for washing laundry and provided with a heater device for heating water in the washing container. In order to achieve a high energy efficiency the washing container is provided with a water outlet, a water inlet and an external connection extending between the water outlet and the water inlet. A pump unit is provided for pumping water from the water outlet to the water inlet through the external connection. The heater device comprises a gas burning device for heating a helical tube heat exchange portion in said connection. A water filter is provided for filtering the water.

Abstract: A high-efficiency hot-water boiler for a heating system of a building is provided. The boiler includes a boiler enclosure that contains a furnace area compartment within an insulated sealed casing, a first watertube compartment within a sealed casing, a second watertube compartment within a sealed casing, and an air-to-air preheat exchanger within a sealed casing. A plurality of separate, closely-spaced watertubes extends within each of the compartments and provides paths for working fluid to flow through the compartments for purposes of transferring heat to the working fluid. A burner is located within the furnace area compartment for combusting an air/gas mixture.

Abstract: A cascade unit for a heating system with two or more heating boilers, in particular condensing boilers, with a hydraulic shunt which is connected on the one hand with the inlet flows and return flows of all heating boilers and on the other hand with at least one heating circuit inlet flow and heating circuit return flow each, with the cascade unit furthermore comprising one each of the essentially horizontally extending boiler inlet flow header and boiler return flow manifold, the header and the manifold being connected with the hydraulic shunt, and the header and the manifold each being designed with prepared connecting nozzles fittingly placed for a group of two or more heating boilers for the connection of the heating boiler inlet flows and the heating boiler return flows. The cascade unit forms at least one self-supporting support frame on which at least one of the heating boilers is mountable.

Abstract: An air freshener dispenser having a transparent outer container. A detachably mounted top has one or more openings to allow circulation. A detachable insert is suspended in the outer container and thus floats in the outer container above the outer container's bottom. Additional decorative elements may be positioned between the outer container and the insert. An intermediate decorative insert can be removably positioned between the outer container and the transparent or translucent insert.

Abstract: A pre-wired and pre-plumbed module for connection to an installed hydronic radiant floor heating system including a supporting frame having components mounted thereon such as a boiler, pumps, four-way valve, in-line air separator, expansion tank, P/T ports, return valves, supply valves and control panels mounted thereon. The module is assembled at the factory and is tested at the factory to ensure that the components are properly plumbed and wired. Once the module is delivered to the job site, the components of the module are quickly and easily connected to the hydronic radiant floor heating system.

Abstract: A furnace located outside of a building or other enclosure to be heated with the furnace utilizing waste oil as a combustible fuel. The furnace is associated with a storage tank for the oil which includes a preheater or warmer therein as well as an oil preheater located in the oil supply line between the tank and furnace with the oil preheater being located adjacent the furnace and being preheated by the hot water produced by the furnace with the preheater or warmer in the tank also being communicated with the hot water heated by the furnace to reduce the viscosity thereof to facilitate the oil being pumped to the preheater and furnace. The hot water produced by the furnace can be used to heat water to be used for domestic purposes through a heat exchanger and also provide fan coil units with hot water and many other purposes.

Abstract: A liquid-backed gas-fired heating system is disclosed which utilizes an infrared burner module having a helical coil wrapped concentrically thereabout. The helical coil located in the radiant zone and convective zone of the module receives heat from the hot products of combustion and transfers the heat to a circulating fluid, which in turn transfers the heat through a fan coil to the space to be heated.

Abstract: A pulsing combustion device is disclosed including a combustion chamber with a poppet valve mounted for reciprocation in the combustion chamber. A pressurized combustible mixture is supplied to the poppet valve with the combustion gases ignited in the combustion chamber. The poppet valve is reciprocated in the combustion chamber by the pressure of the pressurized combustible mixture and the pressure of the combustion gases. The poppet valve regulates the flow of the combustible mixture into the combustible chamber. The pulsing combustion device may be utilized in a steam cleaning device wherein the pulsing combustion device is surrounded by a flow of liquid.The pulsing combustion device may also be utilized for home heating with a fluid heated by the combustion device.