EFM DF 520 Circulator

Post Reply
 
Farmer6
Member
Posts: 35
Joined: Wed. Mar. 30, 2016 8:14 pm
Location: Northwest York Co. PA
Stoker Coal Boiler: EFM DF 520
Hand Fed Coal Boiler: Retired Franco Belge 92,000 BTU
Other Heating: oil

Post by Farmer6 » Wed. Dec. 28, 2022 10:23 am

Looking for the best circulator to run between the oil boiler and the coal boiler. Continuous use 24/7 for 5 months a year. Thanks

 
User avatar
Rob R.
Site Moderator
Posts: 17980
Joined: Fri. Dec. 28, 2007 4:26 pm
Location: Chazy, NY
Stoker Coal Boiler: EFM 520
Hand Fed Coal Stove: Chubby Jr

Post by Rob R. » Thu. Dec. 29, 2022 10:24 am

The best circulator is the one that is correctly sized for your application. How much flow are you trying to get and what is the total length and size of the piping?

 
Farmer6
Member
Posts: 35
Joined: Wed. Mar. 30, 2016 8:14 pm
Location: Northwest York Co. PA
Stoker Coal Boiler: EFM DF 520
Hand Fed Coal Boiler: Retired Franco Belge 92,000 BTU
Other Heating: oil

Post by Farmer6 » Thu. Dec. 29, 2022 10:27 am

The circulator is to move water from the coal boiler to the oil furnace and back. 15 feet of piping.

 
User avatar
Rob R.
Site Moderator
Posts: 17980
Joined: Fri. Dec. 28, 2007 4:26 pm
Location: Chazy, NY
Stoker Coal Boiler: EFM 520
Hand Fed Coal Stove: Chubby Jr

Post by Rob R. » Thu. Dec. 29, 2022 10:44 am

Good, that is a short run so not a lot of piping resistance to overcome.

are you piping to an oil boiler, or a hot air furnace with a heat exchanger?


 
lzaharis
Member
Posts: 2366
Joined: Sun. Mar. 25, 2007 8:41 pm
Location: Ithaca, New York
Stoker Coal Boiler: Keystoker KAA-4-1 dual fuel boiler
Hand Fed Coal Boiler: former switzer CWW100-sold
Coal Size/Type: rice
Other Heating: kerosene for dual fuel Keystoker/unused

Post by lzaharis » Thu. Dec. 29, 2022 10:58 am

As our friend Sting would say it "depends". Some circulators have multispeed motors,
it all depends on what flow rate you need.

The design for piping and circulator inlet and outlet size is based and used on one
common size for each pipe size for all manufacturers of circulators.

AS long as you have the correct inlet and outlet flange size for the new circulator it is
sized correctly for the piping.

If you have a multipass fin tube heat exchanger in an oil-fired forced air furnace plenum
for heat exchange that adds many more feet of piping to the system.

The existing circulator in your system was designed for that systems size and a replacement
in that electric motor frame size will work as well.

 
Farmer6
Member
Posts: 35
Joined: Wed. Mar. 30, 2016 8:14 pm
Location: Northwest York Co. PA
Stoker Coal Boiler: EFM DF 520
Hand Fed Coal Boiler: Retired Franco Belge 92,000 BTU
Other Heating: oil

Post by Farmer6 » Fri. Dec. 30, 2022 8:58 am

I have a oil fired hot water boiler and hot water baseboard heat. I was looking at a Taco 2400-10-3P pump for my setup.

 
lzaharis
Member
Posts: 2366
Joined: Sun. Mar. 25, 2007 8:41 pm
Location: Ithaca, New York
Stoker Coal Boiler: Keystoker KAA-4-1 dual fuel boiler
Hand Fed Coal Boiler: former switzer CWW100-sold
Coal Size/Type: rice
Other Heating: kerosene for dual fuel Keystoker/unused

Post by lzaharis » Fri. Dec. 30, 2022 10:16 am

A 3 gallon per minute Taco 007 F5 is plenty of circulator for your needs as you
will be exchanging 180 gallons per hour-2,720 gallons per day between the
two boilers when it runs.

 
User avatar
Rob R.
Site Moderator
Posts: 17980
Joined: Fri. Dec. 28, 2007 4:26 pm
Location: Chazy, NY
Stoker Coal Boiler: EFM 520
Hand Fed Coal Stove: Chubby Jr

Post by Rob R. » Fri. Dec. 30, 2022 10:38 am

Farmer6 wrote:
Fri. Dec. 30, 2022 8:58 am
I have a oil fired hot water boiler and hot water baseboard heat. I was looking at a Taco 2400-10-3P pump for my setup.
That circulator is likely way too large for what you are doing. I agree with Leon that a Taco 007 would be a better choice.

How much heating oil do you burn in an average heating season?


 
Farmer6
Member
Posts: 35
Joined: Wed. Mar. 30, 2016 8:14 pm
Location: Northwest York Co. PA
Stoker Coal Boiler: EFM DF 520
Hand Fed Coal Boiler: Retired Franco Belge 92,000 BTU
Other Heating: oil

Post by Farmer6 » Fri. Dec. 30, 2022 11:11 pm

I didn't have luck with the Taco 007 on my old coal boiler setup. That is why I am looking for some thing robust. Oil usage is 800 gallons per year.

 
lzaharis
Member
Posts: 2366
Joined: Sun. Mar. 25, 2007 8:41 pm
Location: Ithaca, New York
Stoker Coal Boiler: Keystoker KAA-4-1 dual fuel boiler
Hand Fed Coal Boiler: former switzer CWW100-sold
Coal Size/Type: rice
Other Heating: kerosene for dual fuel Keystoker/unused

Post by lzaharis » Sun. Jan. 01, 2023 12:35 pm

Hello Farmer6,

Please explain why you had a bad experience with the TACO 007 circulator.
Did it have an internal check valve?

A circulator typically fails from incorrect installation which generally causes the
circulator to fail from lack of cooling water or age in operating hours or years in
service. My original Taco 007 circulators failed from 33 years in seasonal service.

 
User avatar
Rob R.
Site Moderator
Posts: 17980
Joined: Fri. Dec. 28, 2007 4:26 pm
Location: Chazy, NY
Stoker Coal Boiler: EFM 520
Hand Fed Coal Stove: Chubby Jr

Post by Rob R. » Sun. Jan. 01, 2023 1:37 pm

Farmer6 wrote:
Fri. Dec. 30, 2022 11:11 pm
I didn't have luck with the Taco 007 on my old coal boiler setup. That is why I am looking for some thing robust. Oil usage is 800 gallons per year.
800 gallons per year is a low heat load. 1” piping, Taco 007, and 4 teeth on the stoker should work well.

Post Reply

Return to “Stoker Coal Boilers Using Anthracite (Hydronic & Steam)”