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wood oil

mellow_3
mellow_3 Member Posts: 8
in THE MAIN WALL
I have wood oil boilers to conect this week and just looking for info on what I might have missed. Tryed to draw what I want to do. I think the more info the better. Hope the pics come out.thanks again

Comments

  • kevin coppinger_4
    kevin coppinger_4 Member Posts: 2,124
    Why no....

    storage tank for a dump zone? How big is the dump zone you have piped in? I had a customer that has a wood boiler that got so hot it melted the pipe insulation off the copper tube. It will run more efficiently if it has the 500+ gal. insulated storage tank....my 2cents kpc

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  • mellow_3
    mellow_3 Member Posts: 8


    Will you deliver? I just took a 120 gallon out last week and it landed on my foot (I know, not a good reason) but it realy hurt. The cust. don't even use the wood but wants a selling point. I never saw a dump tank and have seen a lot of the combos. I know it would be better but the units that are being used and are piped wrong do not seem to have a problem. I have to draw the line somewhere. Thanks for the ideas its great.
  • hr
    hr Member Posts: 6,106
    A tricky marriage

    but it can be done. First try this link for general wood burning advise.
    http://www.pmmag.com/CDA/ArticleInformation/features/BNP__Features__Item/0,2379,4498,00.html

    Sometimes the drawings don't show up. Bet I could get them to you, if not.

    A couple thoughts, you don't want to circulate heated water through an un fired boiler. In other words, the water should not flow through either boiler unless they are firing. As such primary secondary arrangment works best. Grab some of Dans books for a better understanding of these piping methods. Click on books and more to the left here.

    Wood burners don't stop on a dime, or even a dollar! As a result they are a little hard to control. Practice will tell the owners how much to fire them based on current and forecasted weather, and experience.

    They are most efficient when burning hot! So on one hand you want a hot fire, but there are times when you want it completly off! Hard to find and keep that balance. Nicer brands have pretty good ability to shut down the fire by closing off the air supply, this helps, but a smoldering fire is not an efficient fire.

    When, or if, they have a belly full of heat they need to be able to move it out, SOMEWHERE. A constipated wood fired boiler can make a mess :)

    Dump zones have always struck me odd as a way to rid them of excessive heat, better to store the "liquid btu's" you paid for, until a time you need it, I feel, as to overheat a room and open windows :)

    Well insulated storage in the form of a buffer tank works fine. Or let the excess go into an large indirect tank with an appropiate scald/ tempering valve installed on the DHW discharge.

    The piping, but more so the controls, to make all this happen automatically, gets challanging, depending on the owners needs, and wants for accurate control.

    Protect any non condensing boiler from cold return temperatures, even wood burners. Cold return will tend to cresote them up.

    If the system if left un attended make sure you build in protection for overheating and over pressurization. Properly sized and installed safety valves are a must.

    hot rod

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