Efficiency Question Regarding Burnham Commercial Boiler

Brad White_78

Oil input is 16.6 GPH or 2,324 MBH if 140,000 BTU's per Gallon. This would put you at 83.52%

Gas input is 2,396 MBH and this would put you at an even 81% combustion efficiency.

With net I=B=R values (1,507 steam MBH output) this would take you down to 77.64%.

Jim_53

Burnham Commercial Boiler Thermal Efficiency

What is the thermal efficiency for a Burnham Commercial Steam Boiler #V1110, with a gross output of 1941 mbh? Thanks!

Unknown

Thermal Efficiencies

The tested and published Thermal Efficiencies of the V1110 boiler for Oil are 83.5% and 81% for Natural Gas. Combustion Efficiencies are 84.8% for Oil and 82.2 for Gas. These are from the IBR Ratings manuals published by The Hydronics Institute Division of GAMA. Hope this helps.

Glenn Stanton

Manager of Training

Burnham Hydronics

U.S. Boiler Co., Inc.

Brad White_78

Glenn

Thanks for clarifying-

I always thought that the published ratings in the literature were combustion efficiencies and that thermal efficiencies were a tad less (accounting for jacket losses and other parasitic losses). I appreciate you being more detailed than I, as usual.

Brad

StackDraft

Burnham Boiler Thermal Efficiency

Are the combustion and thermal efficiency ratings based on high or low fire?