CONVERSIONS Term
Description
Conversion
BHP
Boiler Horsepower
1 BHP = 33,476 BTUh; 1 BHP = 33.476 MBh
kWh
Kilowatt-hours
1 kWh = 3,413 BTU
HP
Horsepower
1 HP = 0.746 kW
kW/ton
Kilowatt per ton of cooling
kW/ton = 12 / EER
kW/ton
Kilowatt per ton of cooling
kW/ton = 12 / (COP x 3.413)
COP
Coefficient of Performance
COP = EER / 3.413
COP
Coefficient of Performance
COP = 12 / (kW/ton x 3.413)
EER
Energy Efficiency Ratio
EER = 12 / kW/ton
EER
Energy Efficiency Ratio
EER = COP x 3.413
Ton
Unit of capacity for cooling equipment
1 Ton = 12,000 BTUh
MBh
1,000 BTUh
1 MBh = 1,000 BTUh
Therm
100,000 BTU
1 Therm = 100,000 BTUh (or 100 CF or 0.1 MCF)
CF
Quantity of natural gas
1 CF = 1 cubic foot ( = approximately 1,000 BTU)
CCF
Quantity of natural gas
1 CCF = 100 cubic feet
MCF
Quantity of natural gas
1 MCF = 1,000 cubic feet (or 10 CCF or 10 Therms)
SOURCES Terms defined in the Glossary were referenced from the following sources: ari.org www.eere.energy.gov focusonenergy.com energy.gov energystar.gov engineeringtoolbox.com energy.ca.gov lennox.com/resources/glossary.asp ashrae.org/resources--publications/free-resources/ashrae-terminology energy.gov/eere/energybasics/articles/glossary-energy-related-terms
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