Pump Location

Stoker Coal Boilers automatically feed the coal and have controls and pumps just like any conventions boiler. They are intended to be used as a primary heat and often have domestic hot water coils as an added bonus. They can be set up independently or in dual sytem with your existing oil/gas boiler. They can accommodate both hot water base board or steam plumbing.
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Phil May
Member
Posts: 194
Joined: Sun. Nov. 06, 2011 9:12 pm
Stoker Coal Boiler: EFM 700
Coal Size/Type: Buckwheat
Stove/Furnace Make: EFM
Stove/Furnace Model: 700
Location: Wellsville NY

Post Fri. Dec. 14, 2012 2:10 pm

Do you think it makes any diference where you put the pump on the return on a radiant zone. Before the mixing valve or after. All mine push the return water toward the mixing valve. My new shop would be a cleaner install if I put the pump where it will pull return water past the mixing valve.

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Rob R.
Site Moderator
Posts: 11356
Joined: Fri. Dec. 28, 2007 4:26 pm
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy
Location: Chazy, NY

Post Fri. Dec. 14, 2012 2:12 pm

I have always put the pump after (downstream) the mixing valve.

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Phil May
Member
Posts: 194
Joined: Sun. Nov. 06, 2011 9:12 pm
Stoker Coal Boiler: EFM 700
Coal Size/Type: Buckwheat
Stove/Furnace Make: EFM
Stove/Furnace Model: 700
Location: Wellsville NY

Post Fri. Dec. 14, 2012 2:19 pm

That what I am going to do then. My pump will actually be right on the return header it has an internal flow check in it.

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