How much does new furnace installation cost in Fontana?
80% AFUE entry-level $3,200-$4,500. 95%+ AFUE high-efficiency $5,500-$7,800 (SoCalGas rebates apply). Older central and south Fontana homes may add $400-$800 for gas line resize and additional retrofit.
Should I upgrade from 80% AFUE to 95%+ AFUE on my Fontana replacement?
Usually yes. SoCalGas rebates plus 15-20% annual gas savings typically pay back the upgrade within 5-7 years. Eliminates cracked-heat-exchanger CO risk on 20+ year systems.
My central Fontana home has 1/2-inch gas lines. Will I need to resize?
Possibly. We measure delivered pressure during quote walkthrough. Modern condensing furnace plus tankless water heater often needs 3/4-inch line. Resize typically $400-$800.
What rebates apply for new furnace install in Fontana?
SoCalGas rebates on qualifying 95%+ AFUE high-efficiency systems, citywide. We pull current sheets at quote time.
How long does furnace installation take?
Most residential installs are completed in one day. Major flue, ductwork, or gas line modifications can extend to two days.
What size furnace do I need?
Sized by Manual J heating load calculation, not square footage. Oversized furnaces short-cycle, stress the heat exchanger, and cause uneven temperatures. Try our
AC sizing calculator for a quick BTU estimate (most homes need similar heating + cooling BTU). We Manual J the actual home on the install consult.
What AFUE rating should I get?
AFUE measures combustion efficiency. 80% is the entry level. 90-95% qualifies for SoCalGas rebates. 96%+ has the lowest monthly bill but the highest upfront cost. We lay out the payback period at quote time.
