Abstract: A solar chimney street lighting pole having a hollow pole with a first end and a second end, an air inlet circumferentially arranged at the first end and an air outlet arranged at the second end. Dome-like solar heaters are arranged along a length of the hollow pole. The hollow pole is vertically secured relative to the ground with the first end proximal to the ground, and the dome-like solar heaters configured to heat air inside the hollow pole using solar radiation, thereby creating an upward air stream therein. A fan is arranged inside the hollow pole and proximal to the air outlet. A controller is electrically connected to a sensor and a fan actuator to command the fan actuator to switch the fan based on the signal from the sensor. The solar chimney pole transports a polluted air proximal to the ground to the air outlet.

Abstract: The invention provides a lighting device (100) with light emitting diodes (10) configured to generate light (11) having a wavelength selected from the range of 400-475 nm, wherein the lighting device (100) comprises at least two light emitting parts (100a, 100b). The first light emitting part (100a) comprises a first subset (10a) of light emitting diodes (10), and is configured to provide a first light (111a) having the first spectral light distribution substantially in the range of 400-475 nm. The second light emitting part (100b) comprises a second subset (10b) of light emitting diodes (10) and comprising a light conversion element (20) configured to convert at least part of the light (11) generated from the second subset (10b) of the plurality of light emitting diodes (10) into the second light (111b), with the second spectral light distribution substantially in the range of 625-800 nm.

Abstract: A system comprising a structure (1) defining a volume for containing or receiving a body of water. The system further comprises a solar energy system for heating a body of water. The system comprises a solar radiation receiving unit (2) configured to receive solar radiation and configured to convert said solar radiation into heat energy. The system also comprises a barrier means (3) of varying solar radiation transmittance arranged over said solar radiation receiving unit (2). The barrier means (3) is configured to varyingly control the solar radiation receivable by said solar radiation receiving unit (2).

Abstract: A transparent solar heat absorbing apparatus includes a transparent member allowing sunlight to pass through, a wavelength selective member disposed beneath the transparent member, a heating tank formed between the transparent member and the wavelength selective member. The wavelength selective member allows light in a transmission range including at least a visible wavelength range to pass through and reflects light in a reflection range including at least an infrared wavelength range. At least one of the transparent member and the wavelength selective member has a waveform structure on at least one of its upper surface and bottom surface.

Abstract: According to various aspects, exemplary embodiments are disclosed of solar thermal collectors, solar heating systems, and thin plate heat exchangers and absorbers. The thin plate heat exchangers and absorbers may be used for solar applications and/or non-solar applications. In an exemplary embodiment, a solar thermal collector generally includes a first layer comprising polymer and configured to allow sunlight to pass therethrough. A second layer comprises polymer and is configured to absorb thermal energy from sunlight. The second layer includes edges heat sealed to edges of the first layer. A permeable core is disposed between the first and second layers. In operation, a heat transfer fluid may flow through the permeable core and directly contact the second layer, whereby thermal energy is transferrable from the permeable core and the second layer to the heat transfer fluid.

Abstract: A system for heating a pool of water is provided. An inlet is provided for liquid to be delivered to the pool of water. The system includes an attachment apparatus having a body defining a fluid passageway from a first opening to a second opening. A third opening is disposed between the first and second opening. The attachment connects to the inlet for receiving the liquid. An adjustable diverging mechanism is mounted to the attachment operable to redirect flow out of the third opening. A tube having a flow channel and thermally conductive outer surface is coupled to the third opening and extends out of the pool to be exposed to environmental conditions and absorb thermal energy. The liquid passing through the flow channel of the tube returns to the pool of liquid and heated when passing through the tube prior to returning to the pool.

Abstract: A simple solar heating system incorporates a heat dissipater into a heat exchange circuit for bypassing solar collectors when either the temperature or the pressure in the heat exchange circuit exceeds preset limits. In the absence of electric controllers, fluid in the heat exchange circuit is caused to bypass the solar collectors using a valve which is controlled by either the temperature or pressure of the fluid. A solar photovoltaic panel energizes a circulating pump for increasing the rate of pumping as more solar energy is available at the PV panel and decreasing the rate as solar energy decreases.

Abstract: A solar collector, comprising: (a) a plurality of thermosiphon tubes in which water flows, each tube having a top opening and a bottom opening; (b) a top manifold having a water inlet and water outlet and disposed at the top opening of the tubes, providing both a water feed into at least one of the plurality of tubes and a water exit from the rest of the tubes; and (c) a bottom basin connecting the bottom openings of the tubes. In some embodiments the plurality of tubes are divided into at least one inlet tube and the rest as outlet tubes by a stopper disposed in the top manifold.

Abstract: Solar thermal collector comprising a plurality of parallel vertical tubes, connected to each other by one upper horizontal tube and one lower horizontal tube through which a heat carrying fluid flows, a glass surface that covers the parallel vertical tubes, the upper horizontal tube and the lower horizontal tube, and a dissipating device installed in an upper part of the solar thermal collector, the heat dissipating device comprising a thermostatic valve, a heat exchanger and a return pipe, wherein the thermostatic valve is housed in the upper horizontal tube, the thermostatic valve and the heat exchanger being connected to a pipe by way of an inverted U-shaped tube provided at a greater height than the inlet to the heat exchanger, such that, under normal working conditions, energy losses by heat transfer by convection from the thermostatic valve to the heat exchanger are interrupted.

Abstract: Non-tracking solar collector device (1) comprising at least an absorber element (2), at least a couple of reflector elements (3) disposed on opposite sides of the absorber element (2) for conveying the solar radiation onto the absorber element itself and said reflector elements (3) comprising at least one fixed portion (8a,8b) and at least one rotating portion (9); the rotating portions (9) being movable between at least a first extreme position (10), in which the rotating portions are moved away from each other and the entire surface of said reflector elements (3) is substantially continuous, and a second extreme position (11), in which the rotating portions are moved close to each other in order to substantially obscure said absorber element (2).

Abstract: The invention relates to a solar collector. The collector has a heat regulating medium which defines a cavity therein. An aperture communicates with the cavity so as to allow solar energy incident on the aperture to enter the cavity. An energy collection device is disposed in the cavity and in thermal contact with the heat regulating medium to collect solar energy entering the cavity.

Abstract: A solar collector system having several evacuated tube solar collectors arranged together, a conductor arranged on the solar collectors, a power source for sending electricity through the conductor, and an indicator connected to the conductor to indicate when electricity is flowing through the conductor. A snow sensor connected is connected to the conductor adjacent the evacuated tube solar collectors and a controller is connected to the snow sensor. The controller controls the electricity flow through the conductor and allows electricity to flow when the snow sensor senses snow covering the snow sensor, and stops the electricity flow when the snow sensor is no longer covered. The electricity flow heats the conductor, which in turn melts the snow on the collectors.

Abstract: The basis for the function of a linearly concentrating solar collector lies, in simple terms, in the fact that reflectors reflect incident sunlight onto a receiver tube through which a heat-absorbing medium flows. Owing to the rotation of the Earth, the reflectors need to be adjusted regularly, however, in order to ensure that the sunlight hits the receiver tube. Known tracking methods use calculated positions of the sun for this purpose, which, in the case of structural deviations, for example as a result of expansion and material stress, results in inaccuracies and losses in efficiency. The invention is intended to improve the tracking of the reflectors in such a linearly concentrating solar collector.

Abstract: A hybrid solar collector is disclosed having a passive solar collector unit and active photovoltaic panels. The inclination angle of the photovoltaic panels is optimized by linking the panels to the passive unit and its associated tracking controls.

Abstract: A thermally actuated valve employs a plunger and bore valve configuration. A thermally expansible wax actuator has an axial length that changes in response to the temperature in a cavity of the valve. At temperatures above a predetermined set point, the actuator produces axial force sufficient to extend the length of the actuator against a return bias and project the plunger and seal into the bore, closing the valve. The plunger defines a pressure relief fluid flow path from the valve cavity to the valve outlet. A pressure relief valve is arranged in the plunger and is responsive to pressure in the valve. The pressure relief valve opens to relieve pressure above a pre-determined level. The thermally actuated valve and the pressure relief valve are coaxial and employ a common outlet.

Abstract: A solar water heating and cooling system including a solar energy collection assembly having a heat absorbing element, a heat exchanger and a shield. The system also includes a cooling assembly, the cooling assembly is integral with the shield. The system has a check valve in fluid communication with the solar collection assembly and the cooling assembly, and a fluid pump in fluid communication with the solar energy collection assembly. A working fluid is disposed within the solar energy collection assembly, the cooling assembly, the check valve and the fluid pump. A cooling loop is defined by the solar energy collection assembly, the cooling assembly and the check valve. When the fluid pump is off, the working fluid circulates through the cooling loop, but when the fluid pump is on, the working fluid circulates through a heating loop that is defined by the solar energy collection assembly and the fluid pump.

Abstract: The present invention relates to an apparatus capable of accurately tracking the movement of the sun. More particularly, the present invention relates to a solar position tracking apparatus comprising: a cylindrical light focusing device; an absorbing device consisting of solar energy absorbing plates; and a device which measures the amount of energy absorbed into each solar energy absorbing plate, and compares the measured amounts.

Abstract: The solar collector-reflector system includes at least one modular solar panel arranged singly or in an array, each solar panel having a solar collector-reflector assembly, a driver for selective collection or reflection of solar energy, attachment assembly, mounting assembly, ducting and a controller for controlling the solar energy collection and reflection configuration based on the sensed differential temperature between the solar panel or array and a dwelling set temperature. The solar collector-reflector assembly has surfaces that either collect or reflect solar energy, and the solar collector-reflector system utilizes air-to-air heat transfer to provide additional heating to an existing ducting system in the dwelling or reflect solar flux from the roof, thereby reducing heating and cooling energy consumption and costs.

Abstract: A solar energy collection system includes a primary solar receiver and a secondary solar receiver. The secondary solar receiver generates steam using energy from solar radiation incident thereon. The primary solar receiver receives the generated steam from the secondary solar receiver and superheats the steam using energy from solar radiation incident thereon. A plurality of heliostat-mounted mirrors reflects incident solar radiation onto one of the primary and secondary solar receivers. A controller aims a portion of the heliostat-mounted mirrors at the primary solar receiver such that a predetermined thermal profile is provided on a surface of the primary solar receiver.

Abstract: An improved diurnal sun tracking system and methodology for use with a photovoltaic solar collector system mountable on flat roof industrial buildings or multi-unit apartment buildings is provided. The improved tracking system and method rotates or pivots the solar collector system to track the sun during the spring and fall Equinoxes in a first tracking mode, as well as from winter to summer solstices, when the angular rate of the sun's movement does not exactly follow the angular rate at the Equinoxes, in a second tracking mode.

Abstract: A solar energy collection system includes a primary solar receiver and a secondary solar receiver. The secondary solar receiver generates steam using energy from solar radiation incident thereon. The primary solar receiver receives the generated steam from the secondary solar receiver and superheats the steam using energy from solar radiation incident thereon. A plurality of heliostat-mounted mirrors reflects incident solar radiation onto one of the primary and secondary solar receivers. A controller aims a portion of the heliostat-mounted mirrors at the primary solar receiver such that a predetermined thermal profile is provided on a surface of the primary solar receiver.

Abstract: Non-tracking solar collector device (1) comprising at least an absorber element (2), at least a couple of reflector elements (3) disposed on opposite sides of the absorber element (2) for conveying the solar radiation onto the absorber element itself and said reflector elements (3) comprising at least one fixed portion (8a,8b) and at least one rotating portion (9); the rotating portions (9) being movable between at least a first extreme position (10), in which the rotating portions are moved away from each other and the entire surface of said reflector elements (3) is substantially continuous, and a second extreme position (11), in which the rotating portions are moved close to each other in order to substantially obscure said absorber element (2).

Abstract: The invention relates to a solar collector. The collector has a heat regulating medium which defines a cavity therein. An aperture communicates with the cavity so as to allow solar energy incident on the aperture to enter the cavity. An energy collection device is disposed in the cavity and in thermal contact with the heat regulating medium to collect solar energy entering the cavity.

Abstract: A concentrator for solar radiation and which comprises a housing having an aperture arranged to admit incident solar radiation and linearly extending receivers located within the housing. A plurality of linearly extending line focusing, tensile-loaded reflector elements is associated with each receiver and arranged to reflect toward the receiver incident solar radiation that enters the housing, and a drive mechanism is located within the housing and arranged to impart sun tracking pivotal drive to the reflector elements. A housing configuration is disclosed that, with aperture-defining windows, provides for maximal admission of solar radiation.

Abstract: A solar energy greenhouse includes a main structure, a roof structure disposed on the main structure and a plurality of thin-film solar cell assemblies which are disposed on the roof structure in an unequal gap defined there between. The thin-film solar cell assemblies can absorb sunlight and generate electrical energy. The unequal gaps between the thin-film solar cell assemblies are determined from the radiation angle of the sunlight and the position of plants in the solar energy greenhouse, so the amount that the sunlight radiates on the thin-film solar cell assemblies and the plants can achieve a better distribution, which improves the amount of electrical energy generated by the thin-film solar cell assemblies and the rates of growth of the plants.

Abstract: This invention relates to a fluid heating system, wherein the fluid is capable of being heated by means of solar energy, the fluid heating system including:—an outer housing;—an inner housing contained within the outer housing and including an absorbent material core located within the inner housing to define a flow passage between it and the walls of the inner housing; the absorbent material core being suitable for absorbing solar energy transmitted through the outer and inner housings; and—wherein the outer housing; inner housing; and the absorbent material core are arranged such that solar energy is transferred through the fluid in the flow passage before being absorbed by the absorbent material core.

Abstract: In a preferred embodiment, an apparatus, including: a highly radiant heat absorbing material placed closely spaced from and generally parallel to an inside surface of a glass panel disposed in a wall or a door so as to form therebetween a plenum, the highly radiant heat absorbing material being at least partially visually clear.

Abstract: A building component system includes a building component that is controllable between a first state and a second state in response to a sensed condition. The system may include a sensor on a first side of the building component and a sensor on the second side of the building component. The building component may be a window that is controllable between an opaque state and a clear state by a micro electromechanical system (MEMS) network that senses the conditions on both sides of the window.

Abstract: A barbeque smoking box includes a metal container that encloses woodchips. Within the mass of the woodchips is located a frangible liquid container that ruptures when subjected to the heat of a barbeque grill. The liquid then permeates and soaks the woodchips in the frangible container. As the barbeque grill continues to heat the soaked woodchips, smoke is generated and passes in an continuous control manner through a number of small openings formed in the external package so as to smoke food that is being prepared in the grill.

Abstract: A solar receiver system for utilizing solar energy to produce electrical power and to generate a temperature profile of a plurality of receiver tubes utilized in the system. The solar receiver system includes a solar receiver having a plurality of receiver panels including the plurality of receiver tubes through which a coolant flows. Additionally, the solar receiver system includes a plurality of IR cameras adapted to view at least a portion of a surface area of the solar receiver. Each IR camera is adapted to have a field of view including a different specified region of the surface area of the solar receiver. Furthermore, the solar receiver system includes a master control system adapted to receive an IR image from each IR camera, wherein each IR image depicts surface area temperatures and variances over the region of the solar receiver viewed by each IR camera. The master control system generates a temperature profile of the surface area of the solar receiver utilizing the IR images.

Abstract: An air type solar system of the present invention has a heat-collecting unit for heating air by solar heat, and a blower fan for blowing the air as a heat medium from the heat-collecting unit. The blower fan is of a large scale, which is capable of: blowing the air at a rate of about 100 to 2000 m3/hour; and rotating by a direct-current generated from solar cells under normal conditions. In addition, the amount of airflow is confined by an automatic electrical control in winter to adjust the temperature of heat-collected air to an appropriate temperature for heating and humidification. Therefore, the air type solar system of the present invention can be appropriately operated in quest of an effective use of the solar cells while there is no need to use any storage cell.

Abstract: Two steel plates with perforations in both sheets have narrow bent edges which overlap when the two plates are placed together to for a rapid smoker with approximately ¾ inch between the plates. A layer of wood chips is placed in the rapid smoker and the smoker placed directly on the heating source of any type of grill. The wood catches fire quickly through the bottom perforations and sends smoke through the top perforations. The perforation are configured in the top and bottom steel plates in such a way as to accomplish rapid ignition of wood producing smoke and control of the burning/smoking process. This process produces two cooking zones and adds additional favor to the cooked food.

Abstract: A portable, self-contained heating apparatus has a container filled with a plurality of vertically oriented, elongated combustible objects defining a plurality of passages for allowing the flow of air. The container has a first plurality of vent openings formed near the lower end of the container, and a second plurality of vent openings formed near the upper end of the container. The vent openings allow air into the container. A wax material substantially coats the elongated combustible objects without filling all of the passages or the container. First and second bands are movably disposed on the container and move between a first location over the vent openings, and a second location away from the openings. The bands control the flow of air into the container, and thus the rate at which the elongated combustible objects burn.

Abstract: A food smoker for providing a smoky flavor to food. The food smoker includes an elongate cylinder having opposed open ends and an interior adapted for receiving wood chips. The cylinder has a plurality of rows of generally equally spaced apertures extending through it. The apertures are positioned in an upper 1/3 portion of the cylinder. A pair of end caps are detachably coupled to the ends of the cylinder.

Abstract: A solar collector having a radiation absorber (1) has a number of channels for conducting heat receiving liquid, said channels accommodating particles for capillary effect to lift the liquid to effectively sweep the sun-facing surface layer of the absorber. The solar collector is started after a prolonged operation standstill by driving a liquid pump (7) intermittently by a control unit (13) acting according to a clock-controlled program. In the intermittent start-up phase, first the pump (7) is driven for 2-4 minutes, thereafter it is shut down for a time span of about 20-60 seconds, and this is repeated two or three times before a continuous operation phase is started. Thereby air in the absorber (1) channels is expelled more rapidly.

Abstract: A propane burner system for orchards includes a housing, a venturi system, and a propane fuel system. The housing preferably includes a bottom enclosure interconnected with a stack and may be a converted standard fuel burning orchard heater. The venturi system is positioned within the bottom enclosure so that it extends into the stack. The bottom enclosure has at least one vent/fuel opening and the stack preferably includes an igniter opening. The venturi system includes a support system, a flue that is preferably triangular in crosssection, an exhausting chamber, and a deflector plate.

Abstract: Apparatus for releasing a scent upon exposure to heat including a housing formed by a cover member and a base member, a carrier material disposed within the housing and a scented material dispersed in the carrier material. The carrier material has a melting point of at least 185.degree. F. and is both chemically and physically stable at temperatures of up to 550.degree. F. This apparatus is particularly suitable for providing a pleasant scent to a room in association with a gas fireplace.

Abstract: A propane heater suitable for orchards, having a cylindrical combustion chamber and an exhaust tube which extends from one end thereof, the exhaust tube being substantially longer than the combustion chamber. A fuel inlet is located in the cylindrical surface of the combustion chamber at the other end thereof, at approximately 30.degree. from top dead center thereof. An ignition and air supply tube is located approximately 80.degree.-110.degree. circumferentially away from the fuel inlet, past the top dead center of the chamber.

Abstract: The smoke generator produces smoke from combustible matter, such as sawdust or particulated wood, under a controlled set of smoke generation parameters which can be varied over a range of operating set-points. The pyrolysis and partial combustion phases of smoke generation are physically separated and are independently controlled. A controlled rate of sawdust or other combustible matter is fed into an air-excluded pyrolysis chamber in which the pyrolysis temperature is controlled by means of an adjustable power supply to a heating element in the pyrolysis chamber. The ash remaining after pyrolysis of the combustible matter is continuously removed from the pyrolysis chamber. Pyrolytic gases generated by thermal destruction of combustible matter in the pyrolysis chamber are removed to a second chamber where a controlled rate of air is injected with the hot pyrolytic gases to achieve a desired level of partial combustion.

Abstract: This disclosure relates to an improved solar water purification system and process wherein the evaporating, condensing and distillate collecting chambers are located underground to assist in the evaporation and condensation process. The system includes three computer controlled preheaters which are constantly monitored to determine the temperature of the load therein. The cycling and recycling of the load relative to the load tank and the three preheaters is controlled by the computer for optimum system efficiency. One of the three preheaters is located underground, while a second preheater is located externally as a solar preheater and the third preheater is an outside gas, oil or waste heat fired preheater. In addition to producing pure water through the evaporation process, there is disclosed a system and process whereby various contaminants may be captured for further processing, storage and exploitation.

Abstract: An orchard heater including a base and a pulse-jet engine rotatably mounted on the base. The pulse-jet engine exhausts a heated moisture-laden exhaust stream through an exhaust tube. The exhaust stream is directed tangentially to create a torque which automatically rotates the pulse-jet and causes lateral omnidirectional dispersion of the exhaust stream. The orchard heater utilizes the energy released from the combustion process to rotate the pulse-jet engine and to vaporize and atomize water.

Abstract: An orchard heater burns wood or other biomass pellets substantially without the production of soot or smudge. The heater assembly includes demountable, telescoping components including a combustion chamber, a chimney, a firebox, and a hopper. Combination air- and fuel-flow control means control the combustion process. An oven or a grill attachment may be included in the assembly for cooking purposes, if so desired.

Abstract: Smoke generating apparatus has a heater provided in a housing defining a heating chamber, and a slide member movable to and fro for displacing briquettes in a stepped motion onto the heater in succession from the bottom of the stack of such briquettes, so that each briquette is consumed progressively in successive portions at successive time intervals. The slide member is displaced by a mechamism including a pawl and ratchet mechanism which is adjustable to vary the rate of advance of the briquettes to the heater.

Abstract: A steam-producing orchard heater operating on the pulse-jet combustion principle has a horizontal cylindrical combustion chamber with an exhaust tube of smaller diameter extending coaxially from one end thereof, an air supply and ignition tube, extending tangentially from the combustion chamber near the closed end, a fuel supply fitting in the combustion chamber in the same transverse plane as the air supply and ignition tube, and a water injection fitting near the exhaust tube end of the combustion chamber. Two legs are provided under the combustion chamber, and one leg is provided under the exhaust tube.

Abstract: A hollow shell recirculation arch underlies and supports at least one maple sap vaporizing pan. The arch is formed of inner and outer sheet metal shells. The inner shell is upwardly open and is sized smaller than the outer shell so as to form a space therebetween defining a first head exchange chamber. A transverse bridge wall is interposed within the inner shell, intermediate of the inner shell front wall and a rear wall, and separating the inner shell into a fire box and a second heat exchange chamber. Fire brick lines the interior surfaces of the fire box. Preferably the transverse sidewalls of the inner shell are V-shaped to concentrate and reflect the heat upwardly through the open top of the inner shell against the vaporizing pan.

Abstract: A smoke producing device for use in a barbecue or the like is disclosed comprising a smoke producing material, such as wood chips, enclosed in a noncombustible perforated container. The perforations are kept covered by a perforation cover until use so as to prevent leakage of the smoke producing materials from the container and to prevent the loss of moisture and volatile aromatic oils from the smoke producing material. This cover is preferably constructed of a combustible material so that when heated in a barbecue, it will ignite and burn off to expose the perforations, through which the smoke can then escape to flavor the food.

Abstract: A space heater which is generally rectangular in shape and which has a chamber inside which is generally square in cross section. This square shaped chamber has inlets along the bottom thereof and outlets along the top thereof. An improved burner assembly is disposed centrally on the bottom wall of the chamber housing and includes a vertically extending conduit having an opening in the top thereof. A first square plate is attached to the top of the vertically extending conduit and the first square plate is disposed generally horizontally and has a round opening in the center thereof for allowing a fuel and air mixture to exit therethrough. The first square plate has upwardly extending flanges on each edge thereof for directing flames upwardly and causing the flame to be of the same cross sectional shape as the chamber. A second square plate, smaller than the first square plate, is disposed just above the first square plate and is also horizontally disposed.

Abstract: A portable heater comprising a double-wall vessel which forms a combustion chamber and encloses a suitable fuel. Air passages provide an airflow through the vessel for supporting combustion. Also included are endless conduits which entrap displaced fuel to prevent it from escaping from the heater through the air passages. Thus, fuel is prevented from escaping from the heater in all positions of the same in the event that the heater is dropped or otherwise upset. A set of cooling fins, encircling a fuel holder, cool the fuel to help maintain an even burn rate. The heater further includes an adjustable flame attenuator for selective heat control. At a low heat setting the invention may be used as a personal or close contact heater wherein an outer wall serves as a guard for preventing contact burns.

Abstract: An improved compact convection oven and smoke generator for smoking meat and the like wherein the smoke generator automatically advances a block of hard-wood against a heated, rotating metal surface with scraping blade. In this manner, the build-up of an insulating layer of char on the smoldering hard-wood is controlled, resulting in improved control of smoke production.

Abstract: A low cost igniter comprising a multi capsule of low strength, non-porous material, such capsule being divided into at least two separate compartments. One of such compartments is filled with a freezable fluid, and another contains an ingredient that will function in the presence of a selected ingredient to bring about combustion. The ingredient in the capsule is disposed in the immediate vicinity of the second ingredient, so that on the occasion of a freezing temperature, the freezable fluid in the compartment of the capsule will freeze and expand, fracturing all components of the capsule substantially simultaneously, thus leading to a combination of the first and second ingredients, as will bring about immediate combustion. When the multi capsule is configured to have two compartments, the second ingredient is contained adjacent the capsule, but when the multi capsule has three compartments, the freezable fluid as well as both ingredients are each sealed in separate compartments of such capsule.