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Thread: Wood-fired boilers

  1. #11

    Wood-fired boilers

    I have a heatmor outdoor wood furnace that I paid 3500$ for in 2001. for a thousand more I could have had the waste oil burner in it. Its made out of stainless steel. The fire box, flue, and door is all water jacketed. The door is water jacketed to pull as much heat from the fire as well as to prevent warping. I wouldn't trade it for anything and the company was honest and easy to work with.

    I have burned wood, railroad ties, power poles, tires, weeds, waste oil, and more. If you manage your furnace right you can burn all that stuff without much smoke or stink.

  2. #12

    Wood-fired boilers

    Hey Greg
    Great score on the gas furnace :!: Knowing who to ask and the right question to ask sure can make a difference. Don't forget to ask one simple follow up question, "Is that the best you can do?" You'll be amazed at how often that their first price isn't the best they can do. :)

    Now do tell,...... where did you find the web site to do heat calculations?
    Thanks for sharing.
    By the the way love your picture, but is that really your best side? :lol:

  3. #13
    LHBA Member rreidnauer's Avatar
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    Wood-fired boilers

    I just found another boiler of great interest. Though it is wood fired only, it's design is slick. It is loaded with refractory firebox and insulation, uses a downdraft flue, and water tube heat exchanger.

    The way it works is it burns the fire up to 2000 degrees and heat soaks the firebox and large, unsplit logs you dump into it. They claim the downdraft/heat exchanger brings the temperature down to 300 degrees by the time the gasses depart the boiler into the smokepipe. Now here's the neat part. Once the unit reaches it's high setpoint, it closes off all air to the firebox, completely extiguishing the fire due to lack of oxygen. The unit then "coasts" on the stored heat until getting down to the low setpoint of (I'm guessing) 1500 degrees, opens the dampers, and the introduction of oxygen at that temperature causes the wood to reignite on it's own, since the temperature is well above the flash point of wood.

    Really neat if it works, and sounds like a great wood saver. They claim a 24 YEAR warrantee too, but haven't looked real close at the details of that. Price? $5000 for the smallest 120,000 BTU unit.

    I'll have to look further into this one.

    http://www.rohor.com/

  4. #14

    Wood-fired boilers

    Sparky: I believe I used www.heatload.com but I also I saw this one, not sure if it's good or easy (you've gotta be one or the other, ya know...) :twisted: An almanac or the Weather Service site will have your local degree-day information.

    http://www.ccithermal.com/Products/HeatLossCalculation.html

    Also go to the Department of Energy site, look for a program called "ResCheck". It takes all your "envelope" information (windows, doors, wall thickness - I used 1.25 R/inch for log) , tells you if you're within code.

    And yes, his first offer was 600, if I recall.. :)

    Greg

  5. #15

    Wood-fired boilers

    Greg,
    The first web site you listed is not coming up because it has a comma at the end. :wink: No worries, I just wanted to clear up any confusion it may be causing. It's a site worth looking at. :) Thanks

  6. #16

    Wood-fired boilers

    I don't have any firsthand experience with Central Boiler but I have read good things from users


    http://www.centralboiler.com/dualfuel.html

  7. #17

    Wood-fired boilers

    Found a few more links.

    http://www.newhorizoncorp.com/

    http://www.profab.org/

  8. #18

    Outdoor furnaces

    I've read some very negative reviews of those large outdoor wood furnaces


    For instance

    http//www.woodheat.org/technology/outrickperth.htm

    Your mileage may vary, etc...

    i'm sure some of the problems can be remediated with good engineering, but seems risky.

    This technology (Wood gasification) seems more intelligent.

    http//www.woodboilers.com/default.asp
    http//www.newhorizoncorp.com/
    http//www.charmaster.com/prod.html

  9. #19

    If you cant care for a boiler then dont try build a log home

    I read the article and yes its got it fact but take them for who they come from. The way i to look at it if you can build a log home i shure you can take care of a boiler unit.
    If we didnt want save money why would wet be building are own homes.
    And thats what the boiler unit does.
    Sounds like a lazy lib wrote the article :evil:
    I getting one and i have a back up wood stove to.
    I am for them and saving on cost of gas ore electric buy corn, wood, and pellets ore used oil they all work in them.
    I done allot resurch on them and have some the paper work heatmore.com one them.
    Evere one got there thoughts and ideas dosent make any one correct in any area.
    I gone for one burn everthing my idea hahahah
    No atacks just my ideas
    Peace out
    :D

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