The geothermal system we will be putting in for our new facility to do heating & cooling will have a COP of 3.75 - 4. The Manitoba Hydro numbers on space heating were based on a the COP of 2.5 for water source heat pumps. With what we are seeing on the units we ordered, I'd imagine we have a payback on the entire system in less than 4 years WITHOUT government subsidies. With government subsidies it will be 2 years, maybe 3.
That includes installation.
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