Police officers aside, please, we’re talking about heating efficiency here.
COP, in this case, means Coefficient of Performance. COP is the measure of efficiency for a ground-source heat pump in heating mode.
You want it more technical? OK, COP is the ratio of the amount of useful energy relative to the amount of energy used in the process. It’s calculated by dividing heating capacity in Btu (British thermal units) per hour by power input in Btu per hour.
Look at it this way: A ground-source heat pump with a COP of 3.0 uses one unit of electricity to produce two (free) equivalent units of thermal energy. That’s 3 for the price of 1!
Typically, ground-source heat pumps move three to four times more energy to or from the earth than they use to operate. That means COP values of 3.0 to 4.0 or – another way of looking at it — 300% to 400% efficiency on the coldest winter nights, according to the U.S. Department of Energy.
Compare that to the 175% to 250% efficiency for air-source heat pumps on just cool days.
But it gets even better! With the innovation of variable speed compressors in the past few years, the amount of energy needed to power ground-source heat pumps has dropped significantly. That means the COP for the best compressor has improved to 5.0 and even better! You got it – 5 for the price of 1!
So how can you get in on this energy saver for heating and cooling your house or business?
E-mail or call – either way we’ll answer your questions!
Now that’s a good COP, better COP story worthy of headlines.