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boier size indirect hw

kpc_36
kpc_36 Member Posts: 21
in THE MAIN WALL
add btu's for the indirect.... unless you have a very large demand. ie. whirlpool, carwash shower, 3 teenage kids.

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  • k
    k Member Posts: 38
    boiler sixze w/ indirect hw

    I'll be installing a new boiler soon. I did my heatloss. My house according to ibr h22 and Slantfin HE is 40,000 btu's.Radiation measures out to 50000.Currently running 100000 with a coil for dhw. I was thinking of using a burnham mpo84 or mpo115. mpo84 = 64000 btu mpo115 = 85000 I want to add idirect hw heater. Do I need to add any btu's for it. they all show 1st hour ratings with 100000 btu.I'll be running it in priority and an outdoor reset(tekmar 260).I want to leave a little room for an addition while not oversizng to much.
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