|06-19-10, 10:14 AM||#11|
Join Date: Mar 2009
Location: Portland, OR
Thanked 712 Times in 532 Posts
We may have reached 'lift-off'...
Regarding whether to use HRV (sensible heat recovery only) or ERV (sensible + latent heat recovery) I came across the above graphic that spells it out...
They show the core in the video, it looks to be the same kind of material that political yard signs are made of, cut into 10 to 12 inch squares, and glued together with the air channels in an 'alternating' orientation.
Since building the core seems to be the biggest snag in making a DIY HRV, we may have reached 'lift-off'.
A 90% or greater HRV is very difficult to achieve, the only one I have seen is an 'enthalpy wheel' design.
This ERV?s For You - Feature Articles - Extra Edition - Air Conditioning, Heating & Refrigeration NEWS
...and here's a Certified Product Directory, with efficiency ratings of various tested HRVs:
Last edited by AC_Hacker; 06-19-10 at 11:43 AM.. Reason: Clarifying PIX...
|erv, heat recovery, hrv|