Guides
Short answers to the questions people ask before they call.
Common problems
- Heat pump covered in ice
When ice on a heat pump is normal, when it isn't, and what to do about a frozen outdoor unit.
- High winter electric bill with a heat pump
Why heat pump homes see big winter bills, how to spot a problem, and what to check.
- Outside unit not running
Why the outdoor AC or heat pump unit won't turn on while the indoor fan runs, and what to check.
- Burning smell when the heat turns on
Which burning smells from a furnace or heat pump are normal and which mean shut it off and call.
- Loud noises from your HVAC system
What banging, squealing, buzzing and grinding from a furnace, heat pump or AC usually mean.
Costs and decisions
- Heat pump or gas furnace?
How heat pumps and gas furnaces compare for Middle Tennessee winters, and when a dual-fuel setup makes sense.
- Repair or replace?
A simple way to decide whether to fix your heating or cooling system or replace it.