EcoRenovator - View Single Post

Piwoslaw · 12-12-23, 02:39 AM

I added the heat trap and flap valve to the return from the house:

The additional resistance is evident from the sound/load of the circulation pump. When the pump is in 2nd speed I can hear the flap (with additional weight) bobbing up and down.

Tonight I left the pump off for the whole night to see whether heat is still escaping, and unfortnately it is - supply plumbing was warm to hot (30-40C next ot the pump, basement temp is <10C)

So the dual heat traps + weighted flaps add resistance when the pump is on, but do not hinder the loss of heat when it is off.
So much for keeping this system passive.

12-12-23, 02:39 AM	#35
Piwoslaw Super Moderator Join Date: May 2009 Location: Warsaw, Poland Posts: 961 Thanks: 188 Thanked 110 Times in 86 Posts	I added the heat trap and flap valve to the return from the house: The additional resistance is evident from the sound/load of the circulation pump. When the pump is in 2nd speed I can hear the flap (with additional weight) bobbing up and down. Tonight I left the pump off for the whole night to see whether heat is still escaping, and unfortnately it is - supply plumbing was warm to hot (30-40C next ot the pump, basement temp is <10C) So the dual heat traps + weighted flaps add resistance when the pump is on, but do not hinder the loss of heat when it is off. So much for keeping this system passive. Attached Images __________________ Ecorenovation - the bottomless piggy bank that tries to tame the energy hog.