Building an outdoor wood burning furnace 

Great job, I built my wood furnace 30 years ago and it still heats my home every winter.

Built mine 15 years ago and it's one of the best things I've even made. Saves a ton of $$$.

WOW!! Now that is a project! This guy is my hero. Good job. I put PEX throughout my whole house, replaced all the old copper plumbing with manifold system. LOVE IT! I have oil boiler now, and would love to have something like this. forget utility, oil etc... taxes and overpricing.

Great video, music, welding and humor. Very profesional job with all crafts. Thanks !!

Nice build. Best thing I did was build an outdoor wood boiler. Saved so much money over the years.

Absolutely love this video!! Thanks for sharing!

I rarely if ever comment on a video.............this videos awesome........I owned a fireplace company about 5 years back and now a heating and cooling business.........ALOT of people would pay you for that......3000 gets you nothing now a days! AWESOME VIDEO.

Wow, there is hope for us mere mortals. Great video. I purchased a Taylor water stove many years ago. Great heat source.

Good bit of fabricating and welding THIS IS reality TV! Five stars

Not only are you guys great craftsmen but you do great film production as well. I jealous, I used to be able to design and build most my own stuff but, now I'm crippled it's mostly just design. You motivate me to try harder on my reabilitation. You guys need to have your own reality tv show, I'd watch. Again, thanks for the motivation.

It's an impressive work of art and you obviouslyy put a lot of sweat and love into it. I like the concept of feeding it once a day.

Great motivation, and you guys are simply amazing! not to mention great builders.!!

the woodmaster 4400 is a great furnace. Probably one of the best on the market. it is designed to heat over 5000 sq ft. you'll love it.

I take it the overflow pipe allows it to not over pressurize and explode. Nice design, nice build!

this is pretty amazing work, guys. I want a shop like that.

It’s a man’s world 🌎!!! 😃Great video!!!! 👍

This is some really fine work. You guys have some obvious welding and grinding skills. I want to make one for myself one day.

great job guys..my husband loved this!

Im a journeyman Plumber and I see where your coming from. The entire thing was enclosed and probably insulated. The water lines, brass ball valves, and pump itself would freeze and split long before the pump would ever rust out if it was truly left open. That peticular pump I have personally seen installed outside on cooling towers and air handlers, have even seen one that was over 15 years old sitting in mud outside a building.

Awesome Job Guys!

Excellent

And the ashes will make your compost pile into a soil building MACHINE. Ty for sharing this project.

A well built and well designed gasfier is a great thing, but somewhat tempermental and requires diligence to use and maintain properly. What this kid built here is simple, safe, and effective, but much different than a gasifier. You are comparing apples to oranges. It like telling someone who bought a car that they should have bought a plane. This kid did a helluva job on this wood furnace.

American ingenuity , gotta love it .

what size oil tank was that seen vid over 30 times tell every one great work thanx lee

Love the Video a friend of mind bought a house that has a looks like a out door wood burner and has no idea how to work it, it is something like your's, I'm going to look around some more to see if other will give some idea's how to get his working, thanks for your great video

I liked this video a lot. I would have opted for a multi part video series with narration instead of the music. But I am a guy that likes lectures. Loll. Great job bro.

Speechless!!!

awsome video man!!! thanks

Great Job

well yeah since you put it that way, and its a pretty god dang awsome build. nice work buddy.

3.13 real man right there, welding with no helmet lmao.

Alot of farm houses were built before your time and mine. Huge homes with big rooms and high ceilings. That's just the way it was done back in the good old days I guess.

Guys did a great job and have got wheels turning on a steam operated delco as well to help with hydro taxes too,lol If you do it I whould love to see it

great job!!!

amazing!

genius, i love it

WOW That was some impressive shit !!!!!! I love your idea, Your shop is really nice I would love a plasma cutter like yours. I see you have been doing this for a while. When ever I see a weld like a row of nickels you know you have the pro in your sites. Great job, great video, great music, Thanks

it is heavy, but for the cost of $3000.00 to build, and saving $1000 per month to heat the house,. I'd say it's one of the best ROI's out there. Heated the house for free this winter.

If you wanted super efficiency might i suggest adding onto this and creating your own electricity by using the steam from the hot water.. now you can heat and lite your home for free

sorry, no plans for sale, considering there really weren't any plans. we built on the fly.

Awesome! My husband and I watched your video many times and I must say we were both impressed. Question 1 is what are the pipes running thru the tank and what are they for ? (shown at 2:04 ans 2:34) Question 2 is do you have more detailed plans available? Your video was great but we would have liked to see more details that were passed over quickly, including the plumbing diagram. We are planning an outdoor wood fired boiler for our house that we are building on the farm! Thanks!

@robertsulley Actually, one heat exchanger would be enough. we added 2 for more effeciency

So this is my question, how do you clean the ashes out of the chamber? Other than that, it looks like a completely awesome idea!! All I would need is wood, which there is none near me at all

Great video! This is a great way to be off-grid (in heating anyway) and still heat ur home and its water supply. I wonder if this would be very difficult for the less mechanically inclined and on a smaller scale. I do have a question tho. Is the heated water for ur home use heated within the chamber that u built around the fire chamber? Or is the heat somehow redirected to a separate water heater and then used from there?

Did you get an answer to this? I'm interested in the electronic flapper for draft control. I have a Taylor waterstove, but draft does not close down enough when the water in the boiler reaches the proper temp so fire keeps burning (but slower than when fan is stoking it) and I overheat/boil the water on warm nights when I don't need heat in house. Boiling water doesn't circulate easily upstairs in a non-pressurized system so i end up with no heat at all until I can lower the temp of the water

Ur lucky that mo fo made it through the start up. I felt the percussion here. Lol

Do you lose much heat to the ground? Only reason I ask is that the pipes don't look very deeply buried or wrapped with much insulation! Also is there much heat transfer between the pipes in the big"o" or does it matter much? Thanks.

Brilliant project! How much welding wire did you use, and how much gas? Also do those 2 heat exchangers really transfer all the energy produced by that furnace?

when i saw video name i thought it was gonna be making a furnace to melt lead and metals using wood as the heating source for when propane is gone :) but this is cool good job making it

Answer to your question-Both. The water chamber heats the water-piped into the basement and goes through 2 heat exchangers. One, goes to the hot water heater and the other goes through the house.

Nicely done! Is there anything you would do differently on a new build?

Can you share details on your draft fan? It looks like it seals off tightly until it needs to kick on and stoke the fire. What parts & pieces did you use to accomplish that?

@chasehav2014 add rust inhibiter to water

Awesome build! Great video! Free heat is nice! I had a hard time deciphering the schematic, do you heat your hot water with it as well?

Nice to be able to set up something like this; if you were in a small town or even inside city limits someplace, the smoke out the top of the chimney would aggravate the neighbors. How do you get the heat from the water circulation into the rooms? Do you use modern-day radiators? And, nice background music--what is that?

Is that just an old fuel oil tank? Did you put any fire brick in the bottom? Good work.

@1kenziesmom Basement is not needed. all you need is oil, gas or forced hot air system, and you can fit one of these to work. Doesn't work with electric baseboard heat.

Curious how thick the steel is for firebox and how thick on outside (water jacket)?

By "heating the house for free," you mean you burn garbage? Dry, flammable scraps of things like wood or paper?

DUDE! It's BADD ASS! GOT PLANS FOR SALE! All those parts on a list and suppliers would be awsome. Building a 10K square foot shop with acres of downed trees thanks to hurricane Irene 2011. Wood furnaces are stupid expensive. GREAT JOB. Karl B. Escalator Mechanic. Heavy Equipment Owner. Certified Welder... So I get it! And I understand the hard work involved with fabricating. Unlike some bookworm. (Got the tools... Just need some info.) Hope U can help!

How does it work. Is it still cooking , heating😀🙏❓

@doormaker2 You could burn trash and paper in it, but wood is the best source. And when using the term "free", we get our wood for free from all kinds of sources.

Thanks man, in a tank or in a radiator like fashion?

I'm getting ready to build one with a 55 gallon drum conversion. I'm not a welder and do not plan on hiring a welder to put my box together. Instead I will be using some L brackets from some steel shelves I got for free and some bolts. I got some free steel sheets to use for the box and also have a washer and dryer to cut up if needed. I'll seal it with chimney calk and line a good part of it with fire bricks. I'm just piping the air into my house and will pipe a return into the box through a multi level tunnel made of fire brick until it gets about half way up the box which should increase efficiency a few points. This year I'll be going through a window, but will work next summer to pipe it into the basement. I'm considering adding an oil drip to help heat the fire up a bit. There is never a shortage of free used oil. I'll use some free bricks I got to line the outside for some added protection. Eventually I may add a water tank and use a method similar to the one you show here to heat my 1200 sq ft house with full basement. Nice build. I wish I had your resources to build mine. You should probably stay away from gasoline and fire, btw.

Try mixing some waste oil with the gas for lighting. It will be alot less volitile.

How much time/labor would u figure ? These units are one of my better investments. Even paying for it I still got a3-4 year payback n on my 11 year. Nothing I've bought has a return in $ like this.

@redneckrollercoast1 Actually, the circulator pumps work fine. I've had mine hooked up for over 5 years and the pump is still in pristeen condition. Water is also clear and clean. No rust at all.

do you have to have a basement to use this set up

@novokarpati No need for a lining. creosote burns away from inside burn chamber. once a season, shut the unit down and scrape what ever is on the inside. it's actually very effecient.

I couldnt tell, are you heating water in a tank? Is it hot air?

Amazing fab work u guys, i've made a living out of making my own stuff, to include my own wood furnace, and i am impressed. My furnace only heats 1500 sq ft, you said yours will heat 5000 sq ft, how many gallons does it hold? How far from your house is it? How much wood does it consume? And really only $3000? Scrap laying around? Do you have plans (I'll buy them)? I have many questions, please contact me!

Great looking stove.Can I expect mine by next week?

what's the link to your gasifier? would love to see what you built.

monicad33 Thank you for your comments. I will try to answer your questions the best I can. 1. The pipes that run through the burn chamber are to allow water to flow within and get super heated. Does this work? Not sure, but we thought it might be a good idea. 2. As for more detailed plans, we do not have any. Thisboiler was basically designed as we went along. Also, I would assume that the plumbing diagram would be different in each house. Again, thanks and good luck on yours.

darn, using ubuntu and this newest flash is not supported for this video. got a link to a vid with a more universal format ?

what do you do for rusting over time inside the tank and do you have to check the water ph

Now modify to include heating a greenhouse in-ground, and you've got food all year :)

Looks like minor weekend project for the average guy with a Black and Decker Drill and a Hammer. Just Make the wife a thermos of coffee and stand out there all night feeding it.

If you have $50,000 worth of shop and tools to build one of these stoves. 50 large would buy a lot of oil. Do you have an endless supply of free cut up wood? Just asking.

хорошо работаешь!

@bowtie7985 a cast iron pump will rust because its an open aired system. now in your home if you have a gas or oil burning boiler that you don't ever add water to then a cast iron pump will be fine for that because there is no air in the system at all. now with a outside boiler you have a tank on top and there is usually an air space in the top and for and open system like that you want to use a bronze pump. it will not rust or get damaged.

metal looks thin in it. Probably won't last many years. Also, you have to have free access to logs or its not economical either.

was that an old Forney in the background?

Idea old like coal. You can buy cast iron unit for about 2000 dollars in Europe with 15 years warranty. Used by my family for last 30 years in Poland.

How long did you figure for your ROI? return on investment?

@gwana8919 Just curious, How much wood does it burn a week? Great looking stove for sure.

So the water go's in the top pipes and steel box for ?

Could miscanthus pellets work in this?

only feed it once a day in the winter.

P.S. The video is also cool. I also do those too. And my bon fires explode like your wood stove shaking up the woods! LOL

Look at the video description for details on the draft fan.

clean the ashes out once every 2 weeks with a shovel. Takes 5 mintues to do.

don't use a cast iron pump it won't last in an open air system like that!

Farmhouses just tend to be larger due to the space available. I'll put it another way too his money his choice :)

@GunClingingPalin The explosion was actually pretty funny. wish I wouldn't have lowered the camera.

@redneckrollercoast1 So what will happen smart guy, and what should he have used?

Same design rusted out in 2 years--needs to be 1/4 thick to last a few more

old oil drums would burn out in no time, what the built will last!

you where lucky it didnt explode at the last try, But its a nice project.