Furnace Replacement
Gas Furnace Replacement Done Safely and Sized Right
An old furnace can keep running long after it stops running well. Rising gas bills, uneven heat, and more frequent repairs are usually the first signs.
We check your current furnace for safety, size a replacement to your home, and handle the venting, gas, and duct connections a new furnace needs.
- NJ Master HVACR License #19HC0023690
- Based in Cape May Court House
What goes into a furnace replacement
The biggest choice is efficiency. Standard-efficiency furnaces vent through a metal flue or chimney. High-efficiency condensing furnaces extract more heat from the gas and vent through PVC pipe, which means a new vent route and a condensate drain.
If you have central AC, the indoor coil sits on top of the furnace. When replacing the furnace, we check whether the coil is compatible and in good condition, since a mismatched or leaking coil will cause problems later.
We also check the gas line size, the chimney if it’s being abandoned or shared with a water heater, and the duct connections. A new furnace connected to leaking or undersized ducts won’t deliver what you’re paying for.
Repair or replace your furnace?
We’ll always tell you if there’s a safety issue first. Beyond that, here’s how we weigh furnace repair against replacement.
Repair usually makes sense when
- The furnace is under about 15 years old
- The problem is an igniter, flame sensor, or inducer motor
- Combustion and venting test safe
- It has been reliable until now
Replacement is worth pricing when
- The heat exchanger is cracked
- The control board or blower motor failed on an older unit
- It’s a low-efficiency model and gas bills are high
- Rooms heat unevenly due to oversizing
- You’re also replacing your AC
What affects the cost of furnace replacement
Every furnace replacement is quoted after a visit. These are the main factors.
- Efficiency (AFUE)
- Condensing furnaces cost more but use less gas.
- Venting
- New PVC vent runs and condensate drains for high-efficiency models.
- Blower type
- Variable-speed blowers improve comfort and cost more.
- AC coil
- Replacing the coil at the same time if it’s old or incompatible.
- Gas line
- Upsizing gas piping if needed.
- Chimney liner
- A water heater left alone in the chimney may need a liner.
How we replace a furnace
- Step 1
Safety inspection
Heat exchanger, venting, and gas supply.
- Step 2
Sizing
Heat loss calculation for your home.
- Step 3
Options and quote
Efficiency levels and blower options priced out.
- Step 4
Install and test
Combustion analysis and safety checks before we leave.
Why replace your furnace with Conlow
Safety-first
Combustion and CO checks on every install.
Correct sizing
No oversized furnaces that short-cycle.
Complete job
Venting, gas, ducts, and coil handled together.
Licensed
NJ Master HVACR licensed and insured.
Furnaces we install
- High-efficiency condensing gas furnaces
- Two-stage furnaces
- Variable-speed furnaces
- Propane furnaces
- Furnaces for dual-fuel systems
Need Furnace Replacement in Cape May County?
Talk directly with a licensed technician. Call or text and we'll get you on the schedule.
Furnace Replacement questions
Is a high-efficiency furnace worth it?
In most homes that heat through the winter, yes. Savings depend on gas prices and how much you heat. For seasonal homes with low heating use, a standard-efficiency model may make more sense.
What happens to my water heater if the furnace no longer uses the chimney?
A water heater left alone in an oversized chimney may not vent properly. It may need a chimney liner or its own venting, which we check during the estimate.
Should I replace my AC when I replace the furnace?
If your AC is more than about 10 years old, replacing both together is often more cost-effective and ensures the indoor coil and blower are matched.
How long does furnace replacement take?
Usually one day for a straightforward swap. Venting changes or coil replacement may add time.
Serving Cape May County
We work throughout the county, including:
Get In Touch
Request your free replacement estimate
Tell us what you have now and what isn’t working. We’ll inspect the existing system, size the replacement for your home, and give you a written quote. Ask about $500 off a new system and 0% financing for 84 months.*
*Financing is offered through third-party lenders and is subject to credit approval. Promotional terms, including any 0% APR offer, are available only to qualified buyers, may change or end at any time, and are not available on every purchase. Ask for current terms before you buy.
- Call Us609-846-3446
- Emailconlowhvac@gmail.com
- LocationCape May Court House, NJ 08210
- SchedulingCall or text for availability
Ready to get started? Call or text us today.
Speak directly with our team for a fast, no-obligation quote. Call or text and we'll let you know our next available time.
Prefer email? conlowhvac@gmail.com