- Number of installed Geothermal systems:
- References from installed Geothermal systems from five years ago as well as 5 most recent installations:
- Will contractor provide you with a heat loss and heat gain calculation using “Manual J”?
- Have your professional contractor explain a C.O.P.:
- Type of training & how many employees are trained for Geothermal installation:
- Will contractor provide you with a “D Super Heater”? (required for most rebates and tax credits):
- Is the model of heat pump spect for your project ARI rated?: (required for most rebates and tax credits):
- Ask your prospective contractor to explain the basics of how heat pump refrigerant systems work:
- Inquire about equipment manufacturers and warranties:
- Is the contractor Licensed, Bonded & Insured: