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Old 01-28-13, 02:54 PM   #378
kostas
Helper EcoRenovator
 
Join Date: Dec 2012
Location: Venice, Italy
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Quote:
Originally Posted by ham789 View Post
I think your efficiency measurements are way optimistic for that configuration. Having very low air flow certainly
contributes, but even so...
No, it's not. It's real data from real measurements with real instruments. For instance here are the temperatures of tonight with my current configuration (the finished one):
Ext T: 3C
Internal stale air: 21,5 C
Fresh air inlet from HRV: 18,9 C
Unless my math is wrong this gives me a 85,95% efficiency. Note that I no longer have small pc fans but (at least) 180m3/h 220V ones. I could definitely declare the system as "efficient"!
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