# EFM 520 Heat

### EFM 520 Heat

question for you guys out there, I have a 900sq foot pole building with 10 foot high celings, I just installed a modine heater in the ceiling that will heat with hot water. I ran 1 inch pex from the building to the house approx 150 ft total length from heater to stoker for return and supply. I have to circs on it one to push the water and one to return to the boiler. my house is 1400 sq feet will the 520 be able to heat all this and what should my setting be thanks
ryan20strohl

Stoker Coal Boiler: efm stoker and allen stoker
Coal Size/Type: rice and buck
Other Heating: allen stoker
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

### Re: EFM 520 Heat

To answer that question correctly we need to know somthing about your heating load, typically quantified with a heat loss calculation, http://www.tombling.com/heaters/heatloss.htm , basically you determine the heat loss for each component of your structures and add them together. The more effort the more accuracy.

But since we all like to shoot form the hip.

How big is this Modine hydronic heater, how much heat loss can we expect form the piping, that information and the BTU rating of your coal can help you determine how much coal will be needed to run the Modine for one hour. Add some coal for inefficiency.

Good luck, it sounds like it is already built, so why worry about it, turn it on and see what happens.

You can probalby find a better heat loss calcuator, by searching this site in the upper right.
Short Bus

Stoker Coal Boiler: Kewanee boiler with Anchor stoker
Coal Size/Type: Chestnut / Sub-bituminous C
Other Heating: Propane wall furnace back up only

### Re: EFM 520 Heat

Short Bus wrote:how much heat loss can we expect form the piping

That is the big question. If it is well insulated and protected from ground water, the heat loss from the piping should be minimal.

Short Bus wrote:Good luck, it sounds like it is already built, so why worry about it, turn it on and see what happens.

I agree, flip the switch and see what happens. If you discover that the boiler gets slammed with cold water from the piping, you may need to adjust the valves on your soon to be installed bypass.
Rob R.

Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

### Re: EFM 520 Heat

Without any further comment: Of course it will heat the house and shop. I'll bet that by January you will know all the answers to your questions. 'Learn as you burn' is the inverse of Murphy's Law, and is one great institution of higher learning!
(Part of the KISS Philosophy of Engineering)....... :surrender:
whistlenut

Stoker Coal Boiler: AA130's,260's, AHS130&260's,EFM900,GJ & V-Wert
Hand Fed Coal Boiler: Franks,Itasca 415,Jensen, NYer 130,Van Wert
Hot Air Coal Stoker Furnace: Alaska, EFM, Keystoker, Yellow Flame
Hot Air Coal Stoker Stove: Alaska, Keystoker-2,Leisure Line
Hand Fed Coal Stove: Alaska, Gibraltar, Keystone,Vc Vigilant 2
Hand Fed Coal Furnace: Ford, Jensen, NYer, Van Wert,
Baseburners & Antiques: Glenwoods
Coal Size/Type: Barley, Buck, Rice ,Nut, Stove
Other Heating: Oil HWBB

### Re: EFM 520 Heat

Might depend on if the 520 is in the pole barn or the house. The 1" will push in the neighborhood of 70k BTU'S. How big was your Modine?
Scottscoaled

Stoker Coal Boiler: EFM 520, 700, Van Wert 800 GJ 61,53
Baseburners & Antiques: Magic Stewart 16, times 2!
Coal Size/Type: Lots of buck
Other Heating: Slant Fin electric boiler backup

### Re: EFM 520 Heat

my modine puts out 80,000 buts
ryan20strohl

Stoker Coal Boiler: efm stoker and allen stoker
Coal Size/Type: rice and buck
Other Heating: allen stoker
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

### Re: EFM 520 Heat

80 K ON STEAM OR HOT WATER? The info tag usually displays the steam output first. Might be 67 K on hot water if it is like mine. Either way, the boiler will easily do the job for you. 1" copper is good for 80K ish at 8 gpm, so if you increase the circ size and up-tic the flow rate....it will be happy. If it is piped in pex, expect a somewhat lower BTU capability, simply due to a smaller inside diameter. Slow and steady wins the heating game, every single time.
whistlenut

Stoker Coal Boiler: AA130's,260's, AHS130&260's,EFM900,GJ & V-Wert
Hand Fed Coal Boiler: Franks,Itasca 415,Jensen, NYer 130,Van Wert
Hot Air Coal Stoker Furnace: Alaska, EFM, Keystoker, Yellow Flame
Hot Air Coal Stoker Stove: Alaska, Keystoker-2,Leisure Line
Hand Fed Coal Stove: Alaska, Gibraltar, Keystone,Vc Vigilant 2
Hand Fed Coal Furnace: Ford, Jensen, NYer, Van Wert,
Baseburners & Antiques: Glenwoods
Coal Size/Type: Barley, Buck, Rice ,Nut, Stove
Other Heating: Oil HWBB

### Re: EFM 520 Heat

hot water 80,000 its a heavy old think lol got it from an hospitol, they used in the boiler room
ryan20strohl

Stoker Coal Boiler: efm stoker and allen stoker
Coal Size/Type: rice and buck
Other Heating: allen stoker
Stove/Furnace Make: EFM
Stove/Furnace Model: 520