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My favourite climate scientist is asking for help

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Leo_G
Leo_G Member Posts: 89
designing a wood burning heater for his pool. Just thought some of you people would be interested in his thoughts/design. I gave him the addy for here, but he may be too busy to actually visit, so thought I would cross-post.

<a href="http://www.drroyspencer.com/2011/02/fire-water-some-thoughts-on-wood-stove-design-and-efficiency/">http://www.drroyspencer.com/2011/02/fire-water-some-thoughts-on-wood-stove-design-and-efficiency/</a>



Go have a look and hopefully we can help him out.

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  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
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    I like this guy...

    He has an open mind and is a realist.



    As for helping him out, need to know how large the surface area of his pool is.



    I'd also recommend he look into a device called Liquid Blanket. Insulate before you Insolate :-)



    It is going to require a flat plate heat exchanger because all of the woody biomass boilers I am aware of are non pressurized, ferrous construction. Depending on how he sanitizes his system, the FPHX will have to be Titanium (salt/sodium chloride resistant) or another material that is compatible with chlorine based disinfectants.



    I suspect that the Canadians have even more stringent standards as it pertains to woody bio mass smoke emissions, so he is probably looking at a wood gasifying type of boiler. They burn fast, hot and clean.



    Some names to look at are Garn and Tarm. Others will chime in I am sure, but need to know the load before a boiler size can be chosen.



    ME

    There was an error rendering this rich post.

  • hot_rod
    hot_rod Member Posts: 22,505
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    great advice already

    It would be hard to add to the info he has already. I'd look to the Europeans for the best gasification designs, they have been at it a long time.



    I'd also build a plain steel version and exchange the pool water outside the wood boiler.



    Start drying the wood a couple years ago :) Most gasifiers like 18 months to 2 years to dry wood. Green or wet wood will not get along with gasifiers.



    I did see a stainless steel wood fired pool heater at the Canadian CMX show last year. from Eastern canada somewhere, fairly basic non gasiy-ing. Maybe there is a reason for a sloppy heat exchanger? Like a water heater.



    Heating with wood and tending a fire for peak efficiency is indeed a interactive sport. Buy some good leather gloves!



    I especially like this response and may have to borrow the phrase "push the gelatin around' :) I'll credit it to Kevin ?



    hr
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
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