Room temperature regulator - has valve-controlled heater and temp. sensor with heating resistor influencing valve position connected to supply via converter
DE3714723A1
Device for the axial fixing of two concentric parts
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Circuit arrangement for operating a controllable valve on a heating system
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Device for the power supply of a heating-circuit distributor
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Valve for a hot-water heating system
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Circuit arrangement for a temperature-dependent expanding-material element
DE3402575A1
Circuit arrangement for controlling the temperature of an electrical heating element
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Surface heating element
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Circuit arrangement for an electrical heating element, and a device equipped therewith
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Circuit arrangement for the remote-controlled operation of at least one valve of a heating plant and apparatus equipped with it
DE3140472A1
Device for the operation of a bolt acted upon by a return spring
DE3110435A1
Device for actuating a flap for the aeration or deaeration of a room
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Water-based central heating system - has temp. sensitive switches controlling fans beneath radiators
DE3010654A1
Thermostat valve for hot water central heating system - uses expansion medium heated by electric element to control valve element
DE2917506A1
Central heating temp. regulation equipment - has heater adjacent to expanding body coupled to valve plug
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Flush mounted underfloor convection heater - is housed inside trough with outer layers of sound and heat insulating material
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Collector element for solar heat exchanger - has meter body consisting of corrugated and smooth strips soldered together at contact points
