I will second that, Todd. I've had a Hartell MD-10-HEH mag drive pump
pumping glycol in my SHW closed loop for 23 years direct powered by a 20
watt PV. It does make a little noise when your close to it...so be it.
Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
www.frenergy.net
On 9/17/2020 11:39 AM, Todd Cory wrote:
I have had exceptional experience using Hartel brand brushless DC
circulation pumps on my home's solar hot water system.
Todd
On September 17, 2020 11:06:33 AM Christopher Warfel
<[email protected]> wrote:
I would look at the pump that Thermodynamics LTD of Canada sells.
Pretty bullet proof in my experience of 20 years of installing their
products. Don't deal with the people in VT. Call the business in
Dartmouth Nova Scotia, eh? Laing are expensive but very reliable.
March is not great for small closed loop. I really support dc pumps
for solar hot water unless the customer has a solar electric system too.
On 9/14/2020 11:49 PM, Howie Michaelson wrote:
Hi All,
I need to replace 3-5 El Sid pumps I'm using in a low volume
hydronic heating system. Other than laing pumps, are there any
recommendations for 12, 24, or 48 vDC pumps? Having magnetic drives
that mate with the impeller body of the El Sids, would be a bonus.
Thanks,
Howie
*Howie Michaelson
**Sun Catcher*
*****/NABCEP Certified Solar PV Installer™
/**
**Solar Electric Systems Sales & Service
802-272-0004*
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