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What Size Biasi Boiler?

razzor
razzor Member Posts: 20
in Oil Heating
Hi, looking at Biasi boilers to replace leaking Burhnam boiler. I did heat loss calculations with Slant Fin as well as CoolCalc. They both came out at a heat loss of around 72,000 btu. I live in Maine in a 3100 sq ft house with 5 zones and a zone for indirect hot water tank, so 6 zones total. I am thinking about the Biasi B10/4 or the B10/5 but I don’t want to oversize like my Burhnam. Any thoughts on the right choice?

Thanks.

Comments

  • Robert O'Brien
    Robert O'Brien Member Posts: 3,560
    4 section is 10% over your heat loss, why go more?
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  • Big Ed_4
    Big Ed_4 Member Posts: 2,989
    I assume you thinking you may need more the extra zones ... But in reality you can get away with less...

    There was an error rendering this rich post.

  • razzor
    razzor Member Posts: 20
    Thanks for all the responses. So it looks like the Biasi B10 4 section would be a good choice. Does a boiler that is too big cause short cycling? One thing to mention is most of the time, a pellet stove heats the 1st floor, 952 sq feet. FYI.

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