For many Oklahoma City homeowners, the question comes up: “Should I replace furnace and AC at the same time?” This decision often arises when a furnace begins to fail while the AC unit still works, or when an air conditioner struggles during summer but the furnace seems fine. Given Oklahoma’s hot summers and chilly winters, reliable heating and cooling is essential for year-round comfort.
Should I Replace AC And Furnace At The Same Time?
The answer isn’t always simple. The HVAC system’s age, the cost of repair, and the potential energy savings all matter. This guide will help you decide whether to replace your furnace and AC together, just one unit, or wait until it truly makes sense to replace both.
Lifespan of Furnace and AC Systems
Understanding how long each unit typically lasts makes it easier to know when to replace your HVAC system.
- Air conditioners: Last 10–15 years with regular cleaning, repair, and maintenance.
- Furnaces: Last 15–20 years depending on fuel type and upkeep.
If your air conditioner is older than 12 years and your furnace is nearing 18, both may fail within a short time. Even if only one breaks down, the other could soon follow. Signs include:
- Rising utility bills despite normal use
- Uneven heating or cooling throughout your home
- Frequent breakdowns requiring repair
- Issues with coils, blower, or refrigerant refills
Key Factors Before Replacing Furnace and AC Together
Age of Equipment
If both your furnace and air conditioner are old, it makes sense to replace both units at the same time. This avoids paying for another major replacement just a year or two later.
Efficiency and Compatibility
New HVAC units are designed to work as matched systems. A new air conditioner may not perform well with an older furnace, leading to wasted energy and reduced lifespan. Replacing both ensures together for optimal efficiency.
Cost of Repairs vs Replacement
Sometimes repair can extend the life of a system. But if you’re facing a $2,000 repair on a 14-year-old furnace, experts would recommend replacing the unit instead. At some point, furnace replacement and AC replacement save more than constant repairs.
Energy Efficiency and Savings
Upgraded HVAC systems with a high Seasonal Energy Efficiency Ratio (SEER) and efficient gas furnace AFUE ratings can save you money on monthly bills. Over time, those savings offset the cost of new equipment.
Benefits of Replacing Furnace and AC Together
There are several advantages when you replace your AC and furnace at the same time:
- Better compatibility – Units are designed to work together to form a complete HVAC system.
- Improved energy efficiency – Lower bills and more consistent comfort.
- Lower installation costs – Replacing both reduces labor costs compared to separate projects.
- Warranty protection – Both units covered under the same warranty.
- Consistent comfort – Smooth heating and air conditioning all year.
For Oklahoma homes, where air conditioning is critical in summer and furnaces are needed in winter, these benefits are significant.
When to Replace Only One Unit
You don’t always need to replace both systems. Sometimes, it makes sense to replace only the furnace or AC:
- If you bought a new furnace less than 10 years ago but the AC fails, just replace the AC.
- Budget limits may make it smarter to spread costs.
- If you’re moving soon, replacing both may not give you a return.
- If your existing furnace or current AC is still efficient, don’t replace it unnecessarily.
AC and furnace replacement cost
Prices vary based on the HVAC units and installation needs:
- Air conditioner replacement: $5,000–$8,000
- Furnace replacement: $4,000–$7,000
- Furnace and AC replacement together: Slightly less, since labor overlaps
While the upfront cost is high, a new HVAC system lowers utility bills, requires less repair, and delivers better comfort.
Oklahoma City Climate Impact
With scorching summers and freezing winters, Oklahoma City homes demand reliable heating and cooling. Frequent storms and power surges strain older HVAC units, making it a good idea to replace both units for uninterrupted comfort. Local rebates may also reduce the cost of replacing your furnace and AC together.
Professional Help for Furnace and AC Installation
At A Advantage Inc. we provide:
- Expert inspection of your HVAC system
- Furnace repair, AC installation, and full replacements
- Emergency services for breakdowns
- Honest recommendations whether it’s time to replace or just repair
- Full maintenance services including cleaning and furnace air filter changes
Our team ensures your heating and cooling system works efficiently year-round.
Conclusion – Should You Replace the Furnace and AC Together?
If you’re wondering whether to replace your air conditioner and furnace at the same time, think about the age of your HVAC units, repair costs, and long-term savings. For many Oklahoma homeowners, replacing both together is the smarter choice for comfort, warranty coverage, and energy efficiency. But if one system is still less than 10 years old, it may make sense to only replace the failing unit.
For expert advice and reliable installation, cleaning, and repair, contact A Advantage Inc. We’ll help you decide whether to replace your furnace and AC together or keep one system running longer.
