Dual-fuel Systems
Dual-fuel Systems | HVAC Unit Replacement | Heating and Air Conditioning | Louisville
Imagine one sleek, smart system adapting to every Kentucky season—HEP’s dual-fuel solution pairs the clean efficiency of an electric heat pump with the raw heating power of a gas furnace, automatically switching to whichever fuel is most cost-effective at that moment. Louisville homeowners love the whisper-quiet cooling in July, the toasty warmth in January, and the welcome surprise of lower utility bills all year long. Because dual-fuel equipment runs less often at extreme temperatures, parts last longer and indoor comfort stays steady without the temperature swings common to single-fuel units.
When your aging equipment can’t keep pace with local weather or rising energy costs, an HVAC unit replacement with HEP turns frustration into relief. Our technicians handle the entire swap—from load calculations to final airflow check—so you get the right-sized dual-fuel system, factory-certified installation, and airtight warranties. Schedule a free in-home estimate today and discover why neighbors across Louisville trust HEP for comfort that pays you back.
FAQs
What is a dual-fuel HVAC system and how does it work?
A dual-fuel system combines an electric heat pump with a high-efficiency gas furnace in one integrated unit. In mild weather, the heat pump provides heating and cooling using electricity, which is usually the most efficient option. When outdoor temperatures drop to a pre-set balance point (typically between 30-40°F in Louisville), the system automatically switches to the gas furnace, which can produce warmer air more economically in colder conditions. A smart control board decides which fuel source is cheaper and more effective at any given time, maximizing comfort while minimizing energy costs.
Why is a dual-fuel replacement a smart choice for Louisville’s climate?
Louisville experiences hot, humid summers and cool, sometimes freezing winters. A dual-fuel system leverages the heat pump’s efficiency during the long shoulder seasons and summer for cooling, yet still provides the high-heat output of a gas furnace on the coldest winter nights. This flexibility lowers annual energy use by 20-50 % compared to an older straight gas furnace/air-conditioner combo, while ensuring the quick, toasty warm-air delivery many homeowners prefer when temperatures fall below freezing.
When should I consider replacing my current HVAC unit with a dual-fuel system?
You should explore replacement if your existing equipment is 10–15 years old, requires frequent repairs, struggles to maintain temperature, or has a SEER rating below today’s 15.2 SEER2 minimum. Rising utility bills, uneven room temperatures, or loud operation are also signals. Because dual-fuel technology delivers both higher efficiency and improved comfort, it is often the most cost-effective upgrade when you are already facing the expense of replacing an aging air conditioner, heat pump, or furnace.
How much can I expect to save on energy bills with a dual-fuel system?
Savings vary by home size, insulation level, and fuel rates, but Louisville homeowners typically see 20–40 % lower annual heating costs versus an 80 %-efficient gas furnace alone. Cooling costs can drop 15 % or more compared to an older 10 SEER air conditioner. For a 2,000-sq-ft home, that can translate into $300–$600 in combined electric and natural-gas savings each year. Over a 15-year equipment life, total savings often exceed $5,000, helping the system pay for itself.
Are there incentives, rebates, or tax credits available for dual-fuel installations in Louisville or Kentucky?
Yes. Many dual-fuel replacements qualify for the federal Energy Efficient Home Improvement Tax Credit—30 % of installed cost, up to $2,000 for heat pumps/furnaces that meet ENERGY STAR® criteria. LG&E and KU periodically offer rebates of $200–$400 for high-efficiency heat pumps. Kentucky’s Weatherization Assistance Program can provide additional aid for income-qualified households. Manufacturers may also have seasonal promotions. Our team will calculate all available incentives and complete the paperwork to ensure you receive every credit and rebate.
How long does installation take and what disruptions should I expect during replacement?
A standard dual-fuel retrofit in an existing single-family home usually takes one full working day. First, technicians remove the old condenser, coil, and furnace. Next, they set the new outdoor heat-pump unit, swap in the matching indoor coil and gas furnace, upgrade the thermostat, and recalibrate ductwork if needed. During this time, heating or cooling will be off for 4–6 hours. Expect moderate noise from saws and drills, but no major structural changes. We protect floors with drop cloths and clean up thoroughly, so interruption to your household is minimal.