Who makes a wood fired steam boiler?
Low pressure, small. Hand fired would be fine for the intended application.
Could a hand fired coal boiler be retrofit to burn logs?
Alternatively, are there drawings of something from the days of the dead men that could be replicated?
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See the attached 90,000BTU
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Hot water, not steam. Can one change the trim on those? Doesn't look like it.
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.0 -
Burnham? Wonder how small it is?
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.0 -
- you can forget about a hand fired steam boiler being small.
2. do not expect to burn whole unsplit wood or green unsplit firewood
3. don't expect to build a hand fired steam boiler.
A coal fired hand fed low pressure steam boiler does not have to be modified to burn firewood. The firewood just sits on the coal grates and burns.
A coal fired low pressure stoker steam boiler is much more efficient for making steam than a hand fed wood fired steam boiler.
Current EPA regulations prohibit continuous fired wood burning boilers.
Decide what fuel you want to burn and whether you are near a coal source and then comeback to ask more questions.
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The smallest Burnham Model 4N steam boiler is model 63.
It is probably much larger than you need.
There are very good American made small coal stoker boilers made in Pennsylvania that have either an incline fire grate; rolling fire grate or pot/tuyere stokers.
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Sorry @leonz ,if coal were an option, I wouldn't be asking about wood.
Small as in BTU. I'm aware firetube boilers aren't physically small.
I don't think you're correct about EPA, as there are plenty of wood fired HW boilers
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.0 -
Hurst builds them, probably not in the small size that you need.
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream1 -
WAAAYYY too big. If Royall does steam trim that'd be great. Else Burnham if nobody has another lead.
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.0 -
Coal (maybe wood) fired, sidearm water heater 🤠 No trim… probably very unsafe… but it's the right size. 😜
Yours, Larry
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Call Royall. If they can't do it they are in the business and know who there competition is.
Could always find an old "😊Snowman in the scrap yard"
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Thanks Ed, That's helpful.
Snowman… Hmmm.
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.0 -
How many BTU do you want or need? How many square feet?
According to the AHS folks the EPA phase 2 regulations these boilers are no longer sold by them for residential use.
The AHS S130 and S260 can burn sub bituminous stoker coal from Montana and Wyoming. The S260 can make steam.
Nothing short of the smallest Burnham 4N model 63 hand fed steam boiler with its square foot ratinmg of 790, the net steam MBH rating of 245, The BHP rating/boiler horse power of 7.3 and 253 pounds per hour of steam. The coal stoker for this unit is rated at 25 pounds per hour.
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I inquired to Burnham about the 4N63 probably 15+ years ago. The price quoted back then was, ahem, eye opening. I can't imagine what it would be today. I was going to pair it with a Wil-Burt stoker and heat with my (somewhat) local Illinois coal when nat.gas. prices went thru the roof after Katrina. The 4N63 was too large anyway for my needs and the total cost was just unrealistic. I ended up refurbishing an old Iron Fireman stoker (ancestor of the Wil-Burt) and an EFM 350 boiler and set it upon a custom base to house the stoker under it. Ran it at the 10lb./hr setting, pumped the hot water 150' to the house from my shop thru the foamed pex and heated 2700 sq.ft. with a coil in the furnace. It worked fabulously well and with amazingly little smoke, soot or smell. The insulated shop was kept nice and warm by just the boiler sitting there.
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Did that beautiful iron fireman stoker have the heavy cast ash cutting ring with the thick fingers in the casting that were rotated by the cam arm that was rotated by the gear that ran off the auger?
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I wish you had not mentioned steam in your post title as I would have had this information for you much sooner.
The AHS wood gun comes in 8 models from 100,000 to 500,000 btu with induced draft firing and can burn unsplit chunks if that is what you want to do.
The E100/100,000 BTU like the others has induced draft, a fire brick lined 2 pass burn chamber with a cyclone ash collector.
www.alternateheatingsystems.com
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No, it was the standard conversion stoker style where the firepot was meant to be surrounded by refractory cement about 1" below the top edge. The ash is allowed to accumulate until it fuses into a clinker so it can be removed in a chunk rather than shoveled.
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The All Canadian Coal Fired Heaters are real pot stoker animals and make a lot of heat.
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Have you looked any further into the AHS hand fed steam boilers???
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