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How to install outdoor boiler

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Steamhead
Steamhead Member Posts: 16,861
in THE MAIN WALL
is it? I have the rating charts on those boilers if you're interested.

I'd start by doing a heat-loss calculation on the house, to see how much heat is actually needed. Your furnasty is probably oversized- many are- and if you don't do the math, you don't know for sure.

Then you can size the pipes, pump and hot-water coil. Run the pipes below the frost line, preferably in some sort of enclosure that can be drained so water won't fill it. Insulate the pipes well.

If this sounds like a lot of work, it is- and we've only scratched the surface. You really should find a nearby Wethead who can help. Try the Find a Contractor page of this site.

If you're planning to burn coal in that Severn, make sure you have the grates! These were often discarded when converting a coal unit to oil or gas.

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  • Wally Finn
    Wally Finn Member Posts: 6
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    Outdoor boiler

    Finished Dan Holohan's book on hydronic heating. It was interesting and really made me think about the flow of heat. I'm going to have to make a trip to the hockey rink or the grocery store and measure some temperatures. I am a physics teacher and this was really interesting to me. (I guess I chose the right profession because I figured out the pickle in the coke bottle right away!)
    I have been studying heating and have a chance to buy an old severn coal furnace. I want to put it in my shop and run underground water lines to a heat exchanger in my hot air furnace. Do any of you have a suggestion for the next book I should read to figure this out?
    I know I need a pump to circulate the water. Do I need an aquastat to control the pump? How does the hot air furnace kick on the fan without burning gas?
    Any help would be appreciated.
  • Wally Finn
    Wally Finn Member Posts: 6
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    Well, I made an offer on that severn furnace (it's got six grates) but, haven't heard back. It was in worse shape than I thought. I have parts from another severn and could probably make it work but the guy wanted $400. I offered him $150. I really couldn't see how it was worth $400.
    I think you are right about the work required to install this furnace. I need to contact some folks for help. Thanks again!
    Wally
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