Preheating for the air before the heat exchanger The systems for using the heat of the earth are here combined with an airing system. The air from outside is warmed up before the heat exchanger by the heat of the earth.  

Preheating for the air before the heat exchanger

The systems for using the heat of the earth are here combined with an airing system. The air from outside is warmed up before the heat exchanger by the heat of the earth.

When in the garden is already an earth heat exchanger or a deep drill, it makes no sense to dig in a pipe to warm up the air coming to the airing system.
index: 2007 2007 
Index: Airing systems with heat recovery Airing 
Index: Airing accessories Airing accessories 
Index: Heat pump Heat pump 
Index: Heat of the earth for heating Heat of the earth 


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