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Outdoor Wood Boilers

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novice - member
19 posts

Does anyone here have one? It's a large initial investment, but with the rising cost of energy and the option of preheating the hot water supply it seems that it would be worth it. Wood is cheap here, as in free if you want to take the clean ups from areas that have been logged & I already have chainsaws and a truck.

I'd like to hear from someone who has been living with one and hear pros and cons, things to consider before purchase, plumbing and planning a system, etc. There are a lot of them in use around here, but I don't know anyone personally who has one yet.

I know these things need a certain amount of electrical power when integrated into an existing forced air system and that's one of my worries. We get a lot of ice storms. If the furnace fan won't circulate the heat generated what then? Running a baseboard fin tube radiant option would be best, but economically not doable. I'd like to be able to keep both me and the plumbing from freezing if we have a power outage for any length of time.

I'm in the "Kicking this idea around" stage and as you can see, don't know a hell of a lot yet, so I'd like to hear any and all ideas related to this to move me along the learning curve a bit. Thanks.

superstar - founder
832 posts

I don't use wood for heating water, but I do it for heating my house in the winter. Cost, about 1/4 of what it costs for Propane. (our furnace is gas)
We do have to run outside in the cold for some more wood on a daily basis, but I don't mind it and I like splitting wood with an axe. It's therapeutic.

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novice - member
19 posts

We heated our other house with a wood stove for years. The insurance man about had a cow and basically told us he'd have to drop us if we put one indoors here. Since we have everything insured with him (a personal friend) I'd like to avoid that. The wife doesn't do smoke, even in small amounts to well anymore and would prefer not to have a stove in the house.

With an outside wood boiler I could run some plumbing and fin tube to the garage and heat it too for only a small bit more $$. Another bonus.

novice - member
22 posts

I just checked out the Central Boiler options. Depending on house size, you're looking at just under 10 grand for total setup, less if you do it yourself.

I'm interested, but I've yet to talk myself into it. For that kinda scratch, geothermal becomes an option, and it's useful in the summer when it's 95* with 100% humidity....

YMMV, They look cool, but are only worthwhile 5-6 months out of the year at best.

novice - member
19 posts

Central Boiler is sorta the Cadillac of the field. I was looking into having my brother possibly making one. There are plans available and he can literally, build anything. Other than wiring I can do most of the installation.
But yeah, it's a lot of $$$ and I don't know if I could pull the trigger on that unless the payback on savings would be significant. Since my current furnace system is old and not working worth a shit, I may be better off replacing it with a gas or propane set up and just get a smaller generator to power it for back up in emergencies.
I'm gonna need to talk to someone around here who has one and see if the payback is worth it.

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