Dual-fuel Systems
Dual-fuel Systems | HVAC Unit Replacement | Heating and Air Conditioning | Corryton
When temperamental Tennessee weather keeps you guessing, HEP’s dual-fuel systems make sure your Corryton home never misses a beat. Our certified technicians pair the steady efficiency of an electric heat pump with the raw power of a clean-burning gas furnace, automatically switching to the most economical fuel source as temperatures rise or fall. The result is year-round comfort, noticeably lower utility bills, and the peace of mind that comes from equipment installed by a team that’s served East Tennessee families for more than three decades.
If your current equipment is struggling, an HVAC unit replacement with one of our dual-fuel options can transform both comfort and costs in a single visit. We handle everything—from precise load calculations and ductwork inspections to rebate paperwork—so you can enjoy whisper-quiet heating and cooling without lifting a finger. Call HEP today, and experience why your neighbors trust us to keep Corryton cozy no matter what Mother Nature sends next.
FAQs
What is a dual-fuel HVAC system and why is it a good fit for Corryton, TN?
A dual-fuel system pairs an electric heat pump with a high-efficiency gas furnace. The heat pump provides economical heating and cooling most of the year, while the furnace automatically takes over during colder snaps when gas heat is more effective. Corryton’s climate has wide temperature swings—humid summers, mild spring/fall weather, and occasional winter freezes—so a dual-fuel setup lets the system switch to the most cost-effective fuel at any given outdoor temperature, maximizing comfort and lowering utility costs year-round.
How can I tell it’s time to replace my existing dual-fuel unit instead of repairing it?
Consider replacement when the system is 12–15+ years old, needs frequent or costly repairs (one repair exceeding 40% of the price of a new unit is a common benchmark), struggles to maintain set temperatures, or uses R-22 refrigerant, which is no longer produced. If your monthly energy bills have climbed despite regular maintenance, a new high-efficiency dual-fuel system can often pay for itself in lower operating costs and utility rebates.
How long does a dual-fuel replacement take and what happens on installation day?
Most residential replacements in Corryton are completed in one day. We start with a load calculation to size the new equipment, then disconnect and remove the old heat pump, furnace, and related components. New indoor and outdoor units, a smart dual-fuel thermostat, and any necessary duct or electrical upgrades are installed, followed by refrigerant charging, system testing, and homeowner training. We haul away all debris and recycle the old unit, leaving your home clean and comfortable before we leave.
What is the typical cost to replace a dual-fuel system in the Corryton area, and are there incentives?
Pricing depends on capacity and efficiency, but most Corryton homeowners spend $9,000–$15,000 for a complete dual-fuel replacement, including equipment, labor, and basic duct modifications. Federal tax credits of up to 30% (capped at $2,000) apply to qualifying heat pumps, and TVA/utility rebates or low-interest loans may reduce out-of-pocket costs further. Our team provides written quotes up front and offers financing plans with approved credit.
Will a new dual-fuel unit really lower my energy bills?
Yes. Today’s variable-speed heat pumps achieve SEER2 ratings of 16–20+ and HSPF2 ratings of 8–9, while 96% AFUE gas furnaces waste very little fuel. In many Corryton homes, a properly sized dual-fuel system can cut annual heating and cooling costs 20 –40% compared with a 10- to 15-year-old unit. Smart thermostat controls ensure the system switches fuels at the most economical balance point, further trimming usage.
How do I take care of my new dual-fuel system, and do you offer maintenance plans?
Change your air filter every 1–3 months, keep the outdoor heat-pump coil clear of leaves and debris, and schedule two professional tune-ups per year—one in spring for cooling/heat-pump service and one in fall for furnace inspection. We offer affordable maintenance memberships that include bi-annual tune-ups, priority scheduling, a parts-and-labor discount, and warranty compliance documentation, helping you protect your investment and extend system life.