Ceiling slab with inbuilt floor heating - incorporates ducts to accommodate heat exchangers, and heat distribution ducts
DE2650070A1
Central heating circuit with parallel return flows - has valve between pump and boiler giving return flow by=passing boiler
DE2650071A1
Butterfly valve mounting for cylindrical duct - has sleeve fitting interior of duct and contg. valve disc turned by external shaft
CH619015A5
Structural slab
DE2637511A1
Improved conductivity plastic heat exchanger material - having particles of metal or other high conductivity material embedded in it
DE2637583A1
Heat pump system for space heating - where refrigerant flow can be reversed to reverse heat flow
DE2622345A1
Floor heating system ensuring comfort level - adjusts air temperature for rooms where heat sources of each room have same dimensions and density of distribution
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Heating system with two different rating circuits - has unequal dia. pipelines ensuring equal flow resistance and pressure drop
DE2621886A1
Multipath mixture installation - uses two inlet, one or two outlet channels control tap and shunt channel
DE2621938A1
Underfloor heating system heat distributor - has intermediate elements or granules between heating element and floor surface
DE2621904A1
Central heating system with four way valve - has valve controlled bypass within valve and extending between heating circuit return and flow lines
DE2606296A1
Temp. regulation for underfloor heating system - controls power supply in accordance to heat convertion and radiation to maintain mean heat distribution
DE2541081A1
Space heating using coils embedded in floor - has spiralling coils with conducting plates so that walls also form heating surface
DE2452038A1
Electric razor with inbuilt light - uses additional coil wound on transformer to supply current to bulb
