Completed Projects and their Annual Operating Costs
Below is a selection of homes that have a Thermterra custom geothermal system installed. The annual cost to heat and cool the homes with geothermal is shown.
$410 annual heating and cooling cost
$775 annual heating and cooling cost
$570 annual heating and cooling cost
$680 annual heating and cooling cost
$810 annual heating compared to $2,500 with propane furnace
$390 annual heating and cooling cost
$1100 annual heating and cooling cost
$780 annually compared to $3,100 with fuel oil furnace
$1500 annually compared to $3,800 with natural gas boiler
$750 annual heating compared to $2,800 with propane boiler
