Heat pumps in Hillsborough
Subdivisions off US 70 and NC 86 mostly use central heat pumps with electric backup strips. In the historic district, ductless mini-splits are common because many old houses have no room for ducts, and a mini-split is a heat pump too.
Outside town, some homes pair a heat pump with a propane furnace for backup. On those systems, a heat pump failure can go unnoticed until the propane tank empties faster than it did last winter.
Signs something is wrong
- Propane use jumps compared with last winter
- A mini-split head blows cool air in heat mode
- The outdoor unit ices over and does not clear
- Emergency heat is on most of the day
Typical heat pump repair costs
| Repair | Typical price |
|---|---|
| Diagnostic visit | $89 to $150 |
| Capacitor replacement | $150 to $400 |
| Defrost control board | $300 to $700 |
| Backup heat strip or sequencer | $250 to $700 |
| Reversing valve | $1,200 to $2,500 |
Can a mini-split heat an old Hillsborough house in January?
Yes. Current mini-splits heat well down to 5 degrees, and January nights in Hillsborough average around 30. Drafty older houses may need a larger unit or an extra head in the coldest rooms.
Read more about Heat pump repair across the area or HVAC in Hillsborough.