help adding hot water coil

help adding hot water coil

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

Re: help adding hot water coil

PostBy: Short Bus On: 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.
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: help adding hot water coil

PostBy: Richard S. On: 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.
Richard S.
 
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite


Re: help adding hot water coil

PostBy: Poconoeagle On: 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 dont run out of coal :lol:
Poconoeagle
 
Stove/Furnace Make: Buckwalter & Co. , EFM520
Stove/Furnace Model: No. 28 Glenwood 1880, Alaska

Re: help adding hot water coil

PostBy: Richard S. On: 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.
Richard S.
 
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite

Re: help adding hot water coil

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

Re: help adding hot water coil

PostBy: Poconoeagle On: 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-)
Poconoeagle
 
Stove/Furnace Make: Buckwalter & Co. , EFM520
Stove/Furnace Model: No. 28 Glenwood 1880, Alaska