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Author Topic: First wood boiler build  (Read 8526 times)

Red97

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First wood boiler build
« on: December 16, 2013, 08:33:15 PM »

Hello, this is my first post here. I started the stove in november just got it hooked up a week ago. Here are some build pics and specs hope you enjoy.



37" id propane tank 41" long

4'x4'x4' 1/4" water jacket


fire box cleaned, 6" id stack welded in


stack is back cut at a 45 degree angle towards the dome, it sticks down 14" from the top


door frame20x20 ash door is 8x12 made frames are 5/16" the front plate is 3/8"


front plate all welded to fire box inside and out






test fit to locate flue hole


front of water jacket welded on 3" of water around both doors


all welded on steeing on its skids


exit and return pipes welded in


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Red97

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Re: First wood boiler build
« Reply #1 on: December 16, 2013, 08:48:45 PM »

both doors made 3/8" thick with 2x2 angle frames


made the peak for the roof, stoveis natural draft as you can tell by the main door, I may add a blower in the ash door.


1 1/2" foam insulation front and back 2" of double bubble plus r19 every where else. starting the tin.



tin all done


shot of the pumps and returns


all bare steel painted and a ranco in the window on the right

drug it over to the house and started the first fire. So far so good 10 days and counting
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Pit Crew

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Re: First wood boiler build
« Reply #2 on: December 17, 2013, 04:26:50 AM »

Nice job! Are you going to heat the shop that you built it in also?
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hondaracer2oo4

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Re: First wood boiler build
« Reply #3 on: December 17, 2013, 06:24:31 AM »

Great job! How many gallons do you think it works out to hold?
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Red97

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Re: First wood boiler build
« Reply #4 on: December 17, 2013, 07:15:51 AM »

Thank you, no that shop is my dads. I will be hooking up my 24x40 this week. It is heating my 840 sqft house just fine. lol It should be right around 300 gallons of water.
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LittleJohn

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Re: First wood boiler build
« Reply #5 on: December 17, 2013, 08:30:26 AM »

Looking GOOD  :thumbup:; only recommendation and I've said it before, on other posts, not necessarily the best idea to put pump right next to boiler like shown!  Just think of the worse weather you can and then having to replace a put.  I like to pumps inside a heated structure, so replacement in the middle of winter is a bit easier (without gloves, coat and the snowpile you have to sit in to complete the project).

Also, it looks like you are pulling water (heat) from middle of boiler and returning it to top; might want to think about reversing that! Hottest water will be towards top of tank and by dumping cold water onto the top of the fire box you might be setting yourself up for CONDENSATION on inside of firebox.  Just a thought, please remember "I AM NOT AN EXPERT, AND DO NOT CLAIM TO KNOW EVERYTHING"; hell I am not even the smartest person in my house (have a wife)
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hondaracer2oo4

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Re: First wood boiler build
« Reply #6 on: December 17, 2013, 09:52:28 AM »

Lots of debate on pump placement, high or low and on the boiler or in the house. As far as on the boiler or in the house. Remember that the pump can cavitate if you don't supply it with the amount of water that it is able to push through the rest of the system ahead of the pump. If your pushing out 10 gpm then you need to supply it with 10 gpm. If the pump is 100 feet away and only atmospheric pressure at 14 psi is pushing water through a 1 inch pex line then you will be hard pressed to be able to reach that 10 gpm supply because of the friction loss in the supply line.
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Red97

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Re: First wood boiler build
« Reply #7 on: December 17, 2013, 10:17:59 AM »

thank you for the input. As for the water temp I made the immersion well for the aquastat probe is in the middle of the 2 outlets it comes in the top of the tank and is 22" long. I believe the water temp that is actually going to the house should be pretty accurate. as for the pumps I just copied how they were set up on my dads central boiler. the return lines dump on the other side of the fire box not directly on to it. i agree that the hottest water is on top, but my thoughts with the long return pipes on top is the return water will get slightly warmed before it gets dumped in. Thank you for the comments
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Red97

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Re: First wood boiler build
« Reply #8 on: December 17, 2013, 05:31:10 PM »

I made some changes today I added about 7ft of 8" stack hopefully that will add some draft.

here is a pic of the stove idling it will wisp out a little smoke in a breeze


during burn cycle before adding flue


after added flue


3rd time cleaning the ashes out they burn down pretty well


finally got my hx hooked up in the barn they dont make them like this any more. it came off of a 50's era hydraulic pump the tanks are 3x3 square steel with 3/8" aluminum tubes and fins 3 row 17x17 1 1/4" npt inlet and outlet 1/5hp fan the darn thing is heavy!
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BoilerHouse

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Re: First wood boiler build
« Reply #9 on: December 17, 2013, 06:49:29 PM »

Nice build.  Very professional looking.
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Muskoka, Ont

Dragfluid

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Re: First wood boiler build
« Reply #10 on: December 18, 2013, 04:44:50 PM »

Nice job, Sir.
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Red97

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Re: First wood boiler build
« Reply #11 on: December 18, 2013, 08:06:30 PM »

Thank you for the compliments. This is my first major fab project. I have made bumper and brackets for my trucks, but never a project like this. Now I have to get my wood pile built up. I think I have a good pile started then I fill the stove. Lol.
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WoodMOJoe

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Re: First wood boiler build
« Reply #12 on: December 19, 2013, 08:12:33 PM »

Helluva nice job there Red.   :thumbup:
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frankus33

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Re: First wood boiler build
« Reply #13 on: December 22, 2013, 01:54:02 PM »

nice job, looks really good.
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MattyNH

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Re: First wood boiler build
« Reply #14 on: December 22, 2013, 07:57:26 PM »

Impressive build!..Hope you have many years of burning!..Impressive shop as well..
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