Patent International Class: F24H 4/2
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Gas powered heat delivery system
Inventor: Rajewski | Patent Number: 7066729
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Heat exchanger for high purity fluid handling systems
Inventor: Abras, et al. | Patent Number: 6782195
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Heat pump fluid heating system
Inventor: Thompson | Patent Number: 6729151
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Absorption cold or hot water generating machine
Inventor: Inoue, et al. | Patent Number: 6675608
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Hot water supply system
Inventor: Sakakibara, et al. | Patent Number: 6494051
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Hot water supply system
Inventor: Sakakibara, et al. | Patent Number: 6370896
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Circulating oil heater
Inventor: Anderson, et al. | Patent Number: 6296480
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Double effect absorbtion cold or hot water generating machine
Inventor: Inoue, et al. | Patent Number: 6116047
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Water heater modified from refrigerated machine using two refrigerant paths and two different types of condensers working alternatively
Inventor: Likitcheva | Patent Number: 5996362
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Method of transferring heat energy from a low to a higher temperature
Inventor: Petersen | Patent Number: 5351501
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Method and device in closed heating plants
Inventor: Gloersen | Patent Number: 5325821
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High efficiency heat exchanger system with glycol and refrigerant loops
Inventor: Vandervaart | Patent Number: 5263892
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Heat condensing furnace with de-intensifier tubes
Inventor: Vandervaart | Patent Number: 5189887
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Blood warmer
Inventor: O'Boyle | Patent Number: 5125069
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Air conditioner heatbox
Inventor: Jouan, et al. | Patent Number: 5058392
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Absorption refrigeration and heat pump system with defrost
Inventor: Petty, et al. | Patent Number: 4972679
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Process for the operation of a generator absorption heat pump heating installation for space heating, water heating, etc. and generator absorption heat pump heating installation
Inventor: Knoche, et al. | Patent Number: 4953361
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Integrated apparatus for producing warm water
Inventor: Alvisi | Patent Number: 4947656
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Apparatus for heat recovery by using a heat-pump system
Inventor: Dalin, et al. | Patent Number: 4910969
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High-efficiency heating unit for producing hot water
Inventor: Melzi | Patent Number: 4909045
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Method and apparatus for heating, ventilating and exhaust air purifying of industrial buildings
Inventor: Koch | Patent Number: 4741390
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Device for air conditioning in a winter garden
Inventor: Baumann | Patent Number: 4739627
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Johnson tube, a thermodynamic heat pump
Inventor: Johnson | Patent Number: 4724683
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Heat pump systems
Inventor: Page | Patent Number: 4665711
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Flue gas heat pump
Inventor: Bussjager | Patent Number: 4660761
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Diesel heat pump
Inventor: Ravin | Patent Number: 4658771
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Integrated heat pump water heater
Inventor: Robinson, et al. | Patent Number: 4598557
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Direct fired heat exchanger
Inventor: Reimann, et al. | Patent Number: 4570456
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Water heating device of heat pump type
Inventor: Yoshinaga, et al. | Patent Number: 4558571
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Apparatus for recovery of heat from fumes in a heating system or from the ambient air
Inventor: Curti | Patent Number: 4523438
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Power supply system for heat and electricity
Inventor: H/a/ fner, et al. | Patent Number: 4503337
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Heat exchanger with baffle plates
Inventor: Vandervaart | Patent Number: 4458665
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Heating and cooling system
Inventor: Kriege, et al. | Patent Number: 4457358
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Installation for central heating and/or for the production of hot water for sanitary or industrial purposes
Inventor: Dosmond | Patent Number: 4452620
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Heat exchanger housing with air deflecting baffle and hinge door
Inventor: Vandervaart | Patent Number: 4415023
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Heating installation comprising a boiler and a heat pump
Inventor: Iversen, et al. | Patent Number: 4412581
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Method of and apparatus for operating a monovalent alternative absorption heating installation
Inventor: Heimbach, et al. | Patent Number: 4410134
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Heating installation for premises for dwelling or industrial use
Inventor: Gueneau | Patent Number: 4408715
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Heat pump assembly
Inventor: Pischlinger | Patent Number: 4385725
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Heat-augmented heat exchanger
Inventor: VanderVaart | Patent Number: 4311192
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Heating system with heat pump and auxiliary heater
Inventor: Hatz, et al. | Patent Number: 4293092
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Device for cooling chimney gases
Inventor: Eriksson | Patent Number: 4227647
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Fuel fired supplementary heater for heat pump
Inventor: Sisk, et al. | Patent Number: 4191023