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Heat Pump Operational Costs

By Tim Carter
©1993-2008 Tim Carter


Different Geographic Regions

Does it make sense to buy the most efficient heat pump available? Well, it depends! Look at the table below. I selected some cities where friends of mine live. It is fairly well distributed across the USA and absolutely in different climates. Pay attention to the cost of electricity in each city and compare it to your cost. Reference your electric bill. The calculations to arrive at the results below were done by a computer. Just about every heat pump distributor in every city in America has the capability to produce these numbers. They just need to know three things: the size of the system in tonnage, the local electric rate per kilowatt hour, and efficiency of the unit you are looking at. The best thing to do is have a calculation run for three different efficiencies just as the table below shows. I extend my thanks to Jeff Urbanek who works very hard each day at Quality Crafted Systems - the local York distributor. Jeff was kind enough to take time from his busy schedule to run the numbers you see below. Thanks Jeff!

The numbers below are based on some constants. The system Jeff and I selected is a 3 ton system. The calculations were done taking into consideration the design temperatures for heating and cooling for that city. The lifespan of the heat pump is 15 years. The total lifetime cost value in the last column is adjusted for inflation over the life of the unit.

City SEER
Efficiency
Electric Cost
per Kwt hour
1st Year
Cooling Cost
1st Year
Heating Cost
1st Year
Total
Operating Cost
Total
Lifetime
Operating Cost
Charlotte
NC


10 $.076 $359 $602 $961 $16,619
12 $.076 $299 $564 $863 $14,924
14 $.076 $257 $502 $759 $13,126
Cincinnati
OH


10 $.070 $258 $668 $926 $16,014
12 $.070 $215 $626 $841 $14,544
14 $.070 $184 $557 $741 $12,814
Orlando
FL


10 $.060 $694 $191 $885 $15,305
12 $.060 $579 $179 $758 $13,108
14 $.060 $496 $159 $655 $11,327
Seattle
WA


10 $.040 $31 $578 $609 $10,532
12 $.040 $26 $542 $568 $9,823
14 $.040 $22 $482 $504 $8,716
Toledo
OH


10 $.11 $319 $1,386 $1,705 $29,485
12 $.11 $266 $1,299 $1,565 $27,064
14 $.11 $228 $1,155 $1,383 $23,917