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Xringer · 03-27-14, 10:44 AM

The noise and power use. I have not tried to put speed controls on the motors yet.
Maybe make them a bit less jet-like.
So running them less hours is the compromise, for now.

Edit:
One other reason I don't like to use a small differential,
is blowing 70+ deg air downstairs is a lot more effective at space heating, than 55 deg air.
I think it's a more effective use of electricity.

The blowers came on at noon today and just shut down at 5:54 PM.
That's a pretty long time. And, it was all 70F and above air..

03-27-14, 10:44 AM	#184
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	The noise and power use. I have not tried to put speed controls on the motors yet. Maybe make them a bit less jet-like. So running them less hours is the compromise, for now. Edit: One other reason I don't like to use a small differential, is blowing 70+ deg air downstairs is a lot more effective at space heating, than 55 deg air. I think it's a more effective use of electricity. The blowers came on at noon today and just shut down at 5:54 PM. That's a pretty long time. And, it was all 70F and above air.. __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less.. Last edited by Xringer; 03-27-14 at 04:56 PM..