DIY wood-burning stoves are usually based on an old 55-gallon drums. They more or less do the job, but they’re inefficient, difficult to regulate, and so ugly that most people will only tolerate them in the garage or workshop.
The best thing about them is the price. Or at least it was. Lately, though steel barrels have become increasingly difficult to find … and, when you do locate one, it frequently has a hundred dollar price tag at fixed to it.
There must be a better way to go about assembling a homemade wood-burning stove. Try a discarded electric water heater tank, for four good reasons:
1. The walls of a water tank are four times as thick as the metal in a 55-gallon barrel … which means that a water heater drum will make a much tougher stove and will last a lot longer.
2. when you build a firebox from a junked water heater tank, it’s very easy to make the stove as airtight and efficient as any $2500 woodburner on the market. And we can’t say that about a 55-gallon-drum stove.
3. if you construct your heater right it’ll be easy to load, it will have excellent fire and temperature control, and it’ll look classy enough to put on display right in the living room.
4. You can build one a water heater stove for even less than a 55gallon-barrel wood-burner. As a matter of fact, you can scrounge up everything that goes into it. Which means that the stove costs only the labor – one good long day.
You can warm an entire 1,100square-foot house with one of these and be amazed at the large amount of heat and small amount of ashes the unit produces. You’ll also be pleasantly surprised by the way the heater holds a fire overnight.
THE SECRET OF THE LOW COST STOVE
Once you’ve found your “junked but still in good condition” water heater tank, you’ve already got about three-quarters of your stove “custom made” just the way you want it.
And it really isn’t difficult to find one of these tanks, either. Most of the landfills scattered around the country, in fact, are so filled with the containers that we’ve developed a sneaking suspicion the old water heaters breed out there.
Any discarded electric (forget the gas ones for this project) water heater from 30- to 50-gallon capacity will convert nicely into a stove. However, a 30-gallon tanks (with a diameter of 20 inches and a length of 32 inches) makes the best-looking wood-burner of all.
Pick and choose a little from your local landfills, dumps, or the alleyways behind appliance stores until you find just the tank or tanks you want. Then (if you’re doing your “shopping” in a landfill or dump) strip off the lightweight sheet metal “wrapper” and insulation right in the field and make sure that the main tank inside isn’t rusted out or filled with corrosion. Or, if circumstances dictate, you can do this stripping back home and then haul the castoff sheet metal and insulation back to the dump when you’re ready to discard them.
THE REST IS EASY
Anyone with a cutting torch and welder will find the rest easy. And if you don’t own or operate such equipment, scout around until you find a competent welding shop that’ll convert your tank at a reasonable price (i.e. a big drink).
Lay the container on its side and add legs and the “loading hopper box with hinged lid” as illustrated in the accompanying drawing. Then weld in the “exhaust stack” or “smoke boot” . Make sure that all seams are airtight and that the hoqper box lid fits snugly (airtight) too. he draft control is, perhaps, the most critical part of all. If it’s well made and doesn’t leak, you’ll have good and positive control of your finished stove’s blaze and temperature at all times. Conversely, if it isn’t well made and it does leak, you won’t. Work carefully and do the job right.
Once the stove is completely assembled, paint all its outside surfaces with Rustoleum Bar-B-Q black paint or “high temperature engine paint”. You’ve just built yourself one mighty fine wood-burner!
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