Temperature control system for building, has pressureless tanks filled with water, where tanks enclose heat exchanger tubes and include heating unit for heating or cooling water in tanks
NL1034625C1
Shower for bathing, has heat exchanger including bowl-shaped metal base with centrally placed drain, where spiral cold water pipe is attached to bowl-shaped metal base by soldering
NL1032474C1
Cost indicator is for gas-fired radiator and incorporates colored surfaces, the increased appearance of which indicates rise in temperature, gas usage and costs
NL1032458C1
Shower tub with heat exchanger, includes metal base plate with wet side in contact with water in drainage channel and dry side in contact with hollow metal body inside cold water pipe
NL1031715C1
Central heating radiator insulation, provided with magnetic strips or ink for securing it to radiator
NL1031211C1
Gas heat exchanger for e.g. central heating boiler, comprises pair of water pipes extending in spiral around central body and connected to each other via thermal compensator
NL1030621C1
Plastic plate has longitudinal channels fitted with a phase changing material under the influence of temperature variation and thus has a large heat capacity. The phase changing material is normally calcium chloride hydrate
NL1030606C1
Heat exchanger cleaning device, comprises scraper made to move inside heat exchanger by flow of water
NL1028773C1
Outer wall of waste water heat exchanger grooved in spiral form.
NL1026572C1
Heat exchanger for recovering heat from shower wastewater, includes wastewater driven cleaning device for preventing slime formation
NL1025380C1
Heat exchanger for recuperation of heat from waste water has vertical outer pipe in which is inner pipe with spiral grooves
NL1022365C1
Hot water supply system comprises tank for water storage and heat source thermically coupled to tank to heat water, tank also being thermically coupled to output for waste water
NL1020712C1
Boiler, uses heat from waste water to pre heat clean water inside water storage tank
NL1020068C1
Heat exchanger for recovering heat from effluent, contains spiral shaped pipe for carrying clean water to be heated
NL1017845C1
Modular underfloor heating system, uses pipework fed through multiple channels in prefabricated concrete floor blocks
