Circulating pump

[siklife]

Hi everyone, Ill be installing 3 75 gallon water heaters either parallel or in series with a circulating pump. What kind of pump would you recommend for such an installation?

 

[Terry]

You only need to recirc from one tank and have a 1/2" line back. Grunfos makes a 1/25 HP model that works for that. Too much speed on the return pits the pipe. I've also installed them with an aquastat that just bumps the motor every so often to keep the return warm.
Three 75 gallon water heaters? What are you supplying? Just curious.

 

[Sponsor]

 

[siklife]

Its a big house. 3 kitchens, 3 laundrys, 6 bathrooms I believe. The rough was done by a different plumber and the original plan calls for 3 75 gallon water heaters (overkill?), which is what the homeowner wants me to install. Im still debating on how to go about this installation. Any advice will be appreciated.
Out of these pumps which should i go with?
http://www.supplyhouse.com/Recirculator-Pumps-12800000

 

[siklife]

http://www.supplyhouse.com/Grundfos...ed-Circulator-Pump-1-25-HP-115-volt-4701000-p

is this the one you are speaking of?