Question 1

Do heat pumps work in extreme cold (-20°F)?

Accepted Answer

Modern cold-climate heat pumps from Mitsubishi, Fujitsu, and Bosch maintain full heating capacity down to -13°F and partial capacity to -22°F. In most US climates, a properly sized cold-climate unit eliminates the need for backup heat.

Question 2

How long do heat pumps last?

Accepted Answer

Well-maintained heat pumps typically last 15–20 years. Annual filter changes, coil cleaning, and professional tune-ups every 1–2 years extend lifespan and keep efficiency ratings close to factory specs.

Question 3

Can I install a heat pump myself?

Accepted Answer

In most US jurisdictions, refrigerant handling requires EPA 608 certification. Homeowners can often handle electrical rough-in and line-set mounting, but charging, vacuuming, and commissioning must be done by a licensed HVAC technician.

Question 4

How much does a heat pump cost to install?

Accepted Answer

Whole-home ducted systems typically run $8,000–$18,000 installed. Mini-split systems range from $3,500–$8,000 per zone. Geothermal systems cost $20,000–$35,000 but offer the lowest operating costs over 20+ years.

Question 5

What rebates and tax credits are available?

Accepted Answer

The federal IRA offers up to $2,000 in tax credits for qualifying heat pumps. Many states and utilities add $500–$10,000 in rebates. Use our rebate finder to search programs in your ZIP code.

Question 6

Air source vs. geothermal — which is better?

Accepted Answer

Air source heat pumps cost less upfront and work in most climates. Geothermal systems cost more to install but deliver 300–500% efficiency year-round and pay back over 10–15 years in cold climates with high heating loads.

Question 7

What SEER2 and HSPF2 ratings should I look for?

Accepted Answer

For 2023+ DOE standards, target SEER2 ≥ 14.3 and HSPF2 ≥ 7.5 in northern climates (≥ 8.1 in southern). Higher ratings reduce operating costs but increase equipment price — our cost calculator helps you find the break-even point.

Question 8

Will a heat pump work with my existing ductwork?

Accepted Answer

Most ducted air-source heat pumps connect to standard forced-air ductwork. An HVAC contractor should verify duct sizing, insulation, and airflow before installation. Undersized or leaky ducts reduce efficiency by 20–30%.

Heat Pump Frequently Asked Questions