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Old 07-11-14, 12:45 AM   #4
ThomSjay
Helper EcoRenovator
 
Join Date: Mar 2011
Location: Sarnia, Ontario, Canada
Posts: 91
Thanks: 8
Thanked 2 Times in 2 Posts
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Alvin, when there is more noticeable progress, I'll report. Still busy building, and working a full-time job.

Mikesolar, Yes, mostly winter, but also for DHW preheat for the rest of the year.
Also, thanks for the pump link. A question: are the pumps usually that expensive? I'm a little nervous about the price considering that I haven't calculated my return. I do realize that if the cost was factored over 10 years, then it's not so much.
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