Help Adding Hot Water Coil

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johns10mm
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Stove/Furnace Make: baker
Stove/Furnace Model: heat king

Post Sun. Oct. 07, 2012 11:59 pm

I have an ultimate pfo-3t oil boiler and baseboard hot water heat. I have been using a baker hand fired coal stove in basement for several years due to oil prices.Wanted to add hot water coil to stove and connect to boiler for heat does anybody know if its possible with my boiler or will it over heat Thanks for any help. JEFFREY

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

Post Mon. Oct. 08, 2012 12:44 am

My experience with coils in coal stoves is limited to heating domestic hot water.
The limiting factor with coils seams to be the limited surface area for heat transfer from the fire, it gathers heat but most heat passes the coils and goes into the room.
Coils will heat more hot water than I can use, but I doubt you will notice a reduction of heat from your stove due to the coil.
To answer your question, if your circulation pump stops the boiler could overheat, if the pumps keep working, no problems.
More advice will follow I'm sure.
If it was as easy as burning oil, everybody would be burning coal.
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Richard S.
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Stoker Coal Boiler: Van Wert VA1200
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Post Mon. Oct. 08, 2012 1:01 am

The coils in the hand fired stoves are typically very short, 3 or 4 feet and just a flat surface. The typical setup is to use a thermosiphon loop to an existing hot water heater or insulated storage tank. It's a very slow action.
"The difference between stupidity and genius is that genius has its limits."

- Albert Einstein

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Poconoeagle
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Stove/Furnace Make: Buckwalter & Co. , EFM520
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Post Mon. Oct. 08, 2012 1:01 am

you couldnt put a big enough coil in the hand fired to do the job of heating the oil boiler and zone's water capacity..
you could heat the domestic part of it probably

you should invest in a stoker boiler and tie it into the system. use the oil unit when your on vacation or out of coal 8-)

just don't run out of coal :lol:
"Do it Right the First Time" dont leave it for the next guy, as YOU may be the Next guy!!


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Richard S.
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Posts: 12712
Joined: Fri. Oct. 01, 2004 8:35 pm
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite
Location: NEPA

Post Mon. Oct. 08, 2012 2:15 am

Poconoeagle wrote: you could heat the domestic part of it probably
It's slow but it works, probably the bigger question is if it's worth the investment.
"The difference between stupidity and genius is that genius has its limits."

- Albert Einstein

johns10mm
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Posts: 8
Joined: Sun. Oct. 07, 2012 11:50 pm
Stove/Furnace Make: baker
Stove/Furnace Model: heat king

Post Mon. Oct. 08, 2012 11:43 am

Thanks for the help so far. What coal boilers do you recommend i'm in the harrisburg pa. area

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Poconoeagle
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Stove/Furnace Make: Buckwalter & Co. , EFM520
Stove/Furnace Model: No. 28 Glenwood 1880, Alaska
Location: Tobyhanna PA

Post Mon. Oct. 08, 2012 10:03 pm

i like the efm's but there are several others

if you use the search function or index you can find many a discussion about them 8-)
"Do it Right the First Time" dont leave it for the next guy, as YOU may be the Next guy!!

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