Learn
The basics
A gas furnace burns fuel (rated by AFUE); a heat pump moves heat electrically (rated by HSPF2). In our mostly-mild winters, heat pumps are very efficient, with backup for the occasional hard freeze.
- Furnace: Burns natural gas; a heat exchanger warms the air and the blower distributes it. Efficiency is measured as AFUE.
- Heat pump: Runs the AC refrigerant cycle in reverse to bring heat indoors — efficient in mild cold, with electric or gas ('dual-fuel') backup for freezes.
- Repair vs. replacement signs: Weak or no heat, short cycling, rising bills, age 15+ years, or any gas-safety concern such as a cracked heat exchanger — have that checked immediately.
Compare
Your options
Furnace, heat pump, or dual-fuel — what fits Central Texas?
Gas furnace
Strong, fast heat in deep cold; requires gas service. Doesn't cool, and venting and safety must be correct.
Heat pump
Heats and cools in one system and is very efficient in our mild winters. Efficiency drops in a hard freeze, so backup matters.
Dual-fuel
A heat pump with gas backup — the best of both for Hill Country weather. Highest upfront cost.
Higher AFUE/HSPF2 lowers operating cost but raises upfront price; payback depends on how cold your winter runs.
Act
Free heating estimate & fast repair across Round Rock & Austin
100% woman-owned, licensed, insured, and EPA certified. Trane & Daikin factory-trained — we size both options and show the trade-offs for your home.
- Heat pump or furnace for Central Texas?
- For many area homes a heat pump is the most efficient choice since winters are mild. We size both options and compare costs, including financing.
- My furnace is blowing cold air — what first?
- Confirm the thermostat is on heat and the fan on auto, then check the filter. If those are fine, the igniter, flame sensor, or gas supply may need a professional.
- Is my gas furnace safe?
- We check the heat exchanger and venting on every heating service — a cracked heat exchanger is a safety issue we never ignore.
Educational only — not a substitute for an on-site evaluation. Recommendations depend on your home, equipment, and local code, which change over time; confirm specifics with a licensed professional. Reviewed by the Holman Comfort Systems team · Last updated June 18, 2026.