Heat meter for heat delivered by appliance - has a mercury column voltameter supplied with thermoelectric current
DE2351578A1
Gas-heated continuous-flow water heater - has bypass pipe flanking restrictor and heat transmitter, and bypassing tap valve
DE2351269A1
Hydraulically regulated gas-fired hot water system - has reversing valve connected to two circulation points with pressure differential
DE2348070A1
Compound gas burner pre-mounted unit - comprising gas burner assembly, air and gas adjuster, and igniter
DE2342755A1
Gas-fired central-heating hot-water system boiler - with domestic hot water reservoir concentric to flue-gas draught diverter
DE2341591A1
Electrical controller for gas or oil burner - has capacitor of RC element charged during attempted ignition, with plant switch-off if unsuccessful
DE2341600A1
Gas-fired continuous-flow water heater regulation - with interconnected closure discs on gas valve and regulator valve
DE2340293A1
Motor driven valve operating system - has DC electromagnet forcing locking spring against valve shaft in end position
DE2338697A1
Temperature controlled valve for water heater - overloading of input expansion bellows when subjected to temperatures outside range is avoided by slip mechanism
DE2338149A1
Bypass valve of hot water central heating boiler - has static and dynamic pressures acting on it balancing each other
DE2338128A1
Water hammer prevention device - pipe sections shaped to modify water pressure
CS179988B2
Arrangement for lighting-up and controlling of burners for gas heated devices
DE2338101A1
Two membrane flow switch for water heater - has concentric membranes separated by concentric fixed solid plate
DE2337517A1
Gas fired water heater especially for heating systems - has an air blower and porous burner plate and heat exchanger
NL170661B
Valve for a gaseous medium.
DE2336683A1
Multi-stage gas fired water heater - has a horizontally partitioned heat exchanger chamber inside a cylindrical burner
