Outdoor Wood Furnace Info
Outdoor Furnaces - Manufacturers with NON EPA-Certified Models Only => Home Made => Topic started by: Scott7m on January 24, 2014, 04:32:14 PM
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Well, ive been involved with a lot of aspects of this business but im going to build a couple stoves just for the heck of it.
Ill go over some of my specs.
Firebox is gonna be 32"x32" cold rolled steel 1/4" thick.
Water jacket is going to be 38"x44" 3/16" cold rolled steel, pretty much industry standard.
Water capacity is going to be 105 gallons.
Using 2x2 framing for the boiler, front plate is 1/4", rear plate is 3/16"
Its going to be forced draft through the door with no ash pan. Its going to have a drop chimney that comes down to within 12" of bottom of firebox. Going to be wrapped with 6" of fiberglass insulation with a wrap or prodex around that.
Is it going to be the most efficient stove? No, but it will be just as good as the rest of the conventional stoves out there.
Steel is already in, we'll start welding onfce our garage warms up above 0 lol
Ill post some pics as we go....
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Sounds interesting Scott, pics of progress sounds great.
Is firebox and water jacket going to be square or round or something in between.
What is prodex, please.
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Cold rolled steel, round firebox and water jacket
Prodex is a closed cell foam wrap about 1/4" thick, has foil on 2 sides, advertised as r16
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Scott, can't wait to see the build ! I know it would be slightly more complicated but why not try to send that flue for at least one pass through the water jacket?
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With the 3/16" will the water jacket sides be self supporting or will they need bracing of some sort to keep from bowing out from the weight of the water?
I used 3"x1/4" on the outsides of my water jacket 1/3 and 2/3's on welded on the outside of the jacket to prevent bowing, then placed an insulator on top of the flat iron then bolted 2"x2"'s to the insulator so I could fasten the metal to that.
I'm wanting to say I used 8 gauge for the water jacket sides, 1/8" for the top and 1/4" plate for the bottom.
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Your water jacket aint round?
These will be round, there not gonna budge. Its industry standard to use 3/16
Some companies use much thinner, earth uses a material aroind 1/8 inch and hardy uses 1/16 inch firebox and water jafket
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Nope, first one I build was a close clone of the Central Boiler, next one will be of the P&M Optimizer 350 but don't tell anyone.
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Scott - Knowing how the EPA has a hair across it's azz about conventional OWB's, their overall disdain for them and the "pollution" (their word, not mine) they put out, out of curiosity, why not try to improve on a gasser design? I'm simply curious, that's all. Oh, good luck with the build. Roger
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Scott - Knowing how the EPA has a hair across it's azz about conventional OWB's, their overall disdain for them and the "pollution" (their word, not mine) they put out, out of curiosity, why not try to improve on a gasser design? I'm simply curious, that's all. Oh, good luck with the build. Roger
I might try that at some point. But generally speaking the fact that "they" dont like it, makes me wanna build what they dont like even more lol
I feel as humans more of us need to answer to our own moral compass vs what the govt tells us too! Ive seen and heard so much pointless regulation my head is about to pop off, its all non sense.
This could turn into 20 pages followed by 20 pages of historical info that drives me to feel that way
But in regards to a gasser, just for fun I may take a design I like and try to build upon it at some point, keep in mind though companies like central, empyre, heatmaster, p and m, all spends hundreds of thousands in testing and tweaking these. Some of those still leave a LOT to be desired.
When I build a gasser it will be a highly insulated firebox with a lot of refractory with a seperate heat exchange system for transferring it to the water; essentially a dry firebox design.
A design like this would be great but I dont see it as feasible for production due to cost of doing it this way
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Come on Scott! Anyone can build one of them. How about steppin it up a notch? I'm thinkin a conventional with a dry fire box. Dare to be different. LOL
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Scott, can you share where you purchased your steel from? I am getting ready to start a build and don't really care to cut propane tanks if I can avoid it.
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Huntington Steel
New, not rusty, good looking product and fit and finish was nive
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Scott, can you share where you purchased your steel from? I am getting ready to start a build and don't really care to cut propane tanks if I can avoid it.
Hey cutting propane tanks is fun! >:D
I bought my face/door opening plate (5/16") from Ozark Mountain Steel on W. Chestnut St in Springfield.
They can cut and supply anything you may need but new steel is expensive.
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Have you thought about running the flue horizontal instead of vertical?
You would be able to add a back box and the rain wouldn't be able to go directly into the firebox.
Just a thought.
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I bought my face/door opening plate (5/16") from Ozark Mountain Steel on W. Chestnut St in Springfield.
They can cut and supply anything you may need but new steel is expensive.
Yeah but you really don't want to start with rusty steel either considering rust is the bane of owb.
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Can't wait to see it, Scott. Everyone is asking questions about the stove while I'm over here wonder why the hell you don't heat your garage with your OWB!?! lol
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Have you thought about running the flue horizontal instead of vertical?
You would be able to add a back box and the rain wouldn't be able to go directly into the firebox.
Just a thought.
Oh ive thought of a hundred things lol
Just gonna keep it simple
I may build some different designs later
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Can't wait to see it, Scott. Everyone is asking questions about the stove while I'm over here wonder why the hell you don't heat your garage with your OWB!?! lol
Garage is 120x50 with about 26' high ceilings
Its about the equivalent of 30k sq ft considering the insulation value etc
My solution is to work close to the old coal furnace in there lol
We can get it glowin red, put a fan behind it and work in one section pretty good
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Can't wait to see it, Scott. Everyone is asking questions about the stove while I'm over here wonder why the hell you don't heat your garage with your OWB!?! lol
Garage is 120x50 with about 26' high ceilings
Its about the equivalent of 30k sq ft considering the insulation value etc
My solution is to work close to the old coal furnace in there lol
We can get it glowin red, put a fan behind it and work in one section pretty good
Garage?? 120x50 with a 26' high ceiling about had to start out as a hay barn or something. Wish my ceilings were 3 foot higher in our shop.
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Its an open truss design, bottom of trusses are 18ft in center
It used to be my grandpas garage for his trucking company, they had dump trucks and sometimes needed to have the beds up while inside
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Its an open truss design, bottom of trusses are 18ft in center
It used to be my grandpas garage for his trucking company, they had dump trucks and sometimes needed to have the beds up while inside
Gotcha, most of the time if I have to raise a bed on one of the grain trucks I'm working outside, not bad in the summer, doesn't make for a happy camper in the winter, especially this winter.
I like the sense of continuity of generations being in the same place. I'm the third generation on the farm. Restored the last tractor my grandfather bought before passing. Still have a lot of his tools as well.
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Its an open truss design, bottom of trusses are 18ft in center
It used to be my grandpas garage for his trucking company, they had dump trucks and sometimes needed to have the beds up while inside
Gotcha, most of the time if I have to raise a bed on one of the grain trucks I'm working outside, not bad in the summer, doesn't make for a happy camper in the winter, especially this winter.
I like the sense of continuity of generations being in the same place. I'm the third generation on the farm. Restored the last tractor my grandfather bought before passing. Still have a lot of his tools as well.
same way around here....
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How's the build goin Scott?
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How's the build goin Scott?
My boiler maker got called back to his real job until mid May, we'll get back at it then, weve got a couple done and enough steel for a few more. Just playing tho
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Will you show it to me on my way home.
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Will you show it to me on my way home.
Sure will if im around when you come through, its nothing fancy, justa messin around
My dads been having complications and unexpected news in his battle with cancer so its keeping me more tied up than normal
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Sorry to hear that, will you be around mid week?
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Sorry to hear that, will you be around mid week?
Hope so, but not sure, ill try to make it work out