Geothermal Energy
Size of Heat Pump
Energy information administration.
1 gallon diesel and heating oil = 139,000 btu
Geothermal Heat Pumps - by Bruce Harley www.builditsolar.com/projects/spaceheating/builder's%20guide%20to%20GeoThermal.pdf
1 ton = 12,000 btu/hr
Per year
Heating and cooling average per year = 5,500 hours (Mass average given by Nexamp)
Heat pump size
Cost of System
Nexamp gave original numbers
1 ton system costs = $1,300
Inside work cost (Nexamp)
Total cost of inside work = $16 per sq ft of building
Outside work Cost (Nexamp)
Total cost of outside work = $85000 per 1000 sq ft of building
(A is square footage of building)
Total Cost of Installing System and Equipment
PAYBACK (in years)
Nexamp says saves 50-70% on what you spend to heat with fuel oil.
Lets say 60%
Cost of fuel oil per gallon * amount of gallons per year = Amount spent per year(OrigSpent)
OrigSpent is the amount of money spent on Heating per year
Dollars saved per year on fuel oil.
Fuel Oil Rises to $2.70 a gallon the Payback = 15.3 Years
Fuel Oil Rises to $3.00 a gallon the Payback = 13.8 Years
Fuel Oil Rises to $4.00 a gallon the Payback = 10.4 Years