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Mobile Master Tech
Forum:
Introductions
03-05-16, 11:51 AM
Replies:
25
New to forum, and new home owner!
Views:
21,636
Posted By
Mobile Master Tech
Even if there are pumps in the box, their energy...
Even if there are pumps in the box, their energy draw is not subtracted from the COP, making those advertised numbers bigger.
From Wikipedia: "ASHRAE transitioned to ISO 13256-1 in 2001, which...
Forum:
Introductions
03-05-16, 09:03 AM
Replies:
25
New to forum, and new home owner!
Views:
21,636
Posted By
Mobile Master Tech
Jeff, those EER numbers are off a bit. 1:1...
Jeff, those EER numbers are off a bit. 1:1 COP=3.41 EER, since 1 Kw=3412 btu. A COP of 4-5 would be to 13.6-17 EER. An EER of 30 would be a COP of 8.8. Doable, but very lofty. Were they getting SEERs...
Forum:
Introductions
03-05-16, 08:53 AM
Replies:
25
New to forum, and new home owner!
Views:
21,636
Posted By
Mobile Master Tech
Sam, +1 on Jeff & Steve's comments. I will add...
Sam, +1 on Jeff & Steve's comments. I will add that the efficiency of an open source heat pump depends heavily on the energy needed for pumping. Your ground & groundwater temp is probably around 47F...
Forum:
Introductions
03-04-16, 02:44 PM
Replies:
25
New to forum, and new home owner!
Views:
21,636
Posted By
Mobile Master Tech
Yes, the inverter drive units keep up with cold...
Yes, the inverter drive units keep up with cold temps. Most are rated to work down to 0F such as THIS Gree U-Match 24kbtu UNIT (http://www.ecomfort.com/Gree-UMAT24HP230V1AD-S/p56889.html)which...
Forum:
Introductions
03-03-16, 09:23 AM
Replies:
25
New to forum, and new home owner!
Views:
21,636
Posted By
Mobile Master Tech
Welcome, Sam! I have made a number of posts...
Welcome, Sam!
I have made a number of posts that describe simpler, more effective ways to make the house more efficient and get what you need sustainably so you can fire your utilities. Instead...
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