Search thousands of topics on CostHelper

BROWSE ALL TOPICS >> babies & children  cars  consumer electronics health & personal care home & garden personal finance  pets  schools small business sports weddings
CostHelper > Home and Garden  > Electrical, HVAC & Energy Efficiency > Gas Furnace

Gas Furnace Cost


How Much Does a Gas Furnace Cost?

 
low costWall- or Floor-Mount: $1,400-$5,000+ Installedaverage costStandard-Efficiency Central Furnace: $1,700-$8,000+high costHigh-Efficiency Central Furnace: $2,500-$12,000+

Gas furnaces can be powered by natural gas (from a utility company) or propane (LP). Capacity is measured in British thermal units (one BTU is the amount of energy needed to raise the temperature of a pound of water by one degree Fahrenheit). A furnace rated 50,000 BTU consumes 50,000 BTUs an hour.

Typical costs:

  • Furnaces that are the heart of a gas central heating system are typically sold by an HVAC (heating, ventilation and air conditioning) contractor, with installation included, and the AFUE rating is a major factor in the price. Replacing an aging gas furnace with a standard-efficiency model (80% AFUE, which means that 80% of its fuel is converted to heat) starts at about $1,700-$4,000, including installation, but depending on complexity and location it can cost $5,000-$8,000 or more.
  • Installing a new high-efficiency (90%-97% AFUE) gas furnace starts at about $2,500-$6,000 but depending on complexity and location it can cost $7,000-$12,000 or more. CostHelper readers report paying $2,695-$5,000 for basic installation of a 95%-96% gas furnace, at an average cost of $3,465.
  • Replacing an oil furnace with a gas-fired model can cost thousands of dollars more than replacing one gas furnace with another, because of the cost to remove the old oil tank ($500-$3,000 or more) and to install new gas lines, fittings, valves and other parts of the system to work with the new gas furnace. A CostHelper reader reports paying $6,500 to replace an oil furnace with a gas unit.
  • A wall-mounted gas furnace that provides hot air directly to the surrounding space can cost $400-$2,500 for just the unit, depending on size, BTUs, AFUE rating, air outlet location (top outlets are typically slightly cheaper than bottom outlet models) and the controls (a wall-mount or cabinet-mount thermostat or a remote control). Installation can bring total costs to $1,400-$5,000 or more. For example, the low-profile (25.25" high, 22.25" wide, 9.5" deep) HouseWarmer HWDV181BDV 18,000 BTU Wall Furnace[1] vents directly on an outside wall, has a built-in blower and thermostat, is rated to heat up to 525 square feet and costs about $500-$830 (without installation) in propane or natural gas.
  • Replacing a gas floor furnace (the heat rises from a grill flush with the floor) typically costs about $900-$2,500 for just the unit, depending on size, BTUs and features like the type of thermostat; installation brings the total cost to $2,000-$4,500 or more. At 14" wide the Cozy Challenger 90N30 Narrow 30,000 BTU Natural Gas Floor Furnace[2] fits between standard 16" floor joist spacing and costs about $900-$1,000 without installation.
Related articles: Central Heating, Electric Baseboard Heater, Radiant Floor Heating, Heat Pump, Propane, Installing a Gas Line

What should be included:
  • A furnace in a central heating system typically has a burner, where the fuel is delivered and consumed; a heat exchanger (or exchangers) to transfer heat from the burner to the air; and blowers/fans to distribute the heated air into the ductwork. Mr. Fix-It has a detailed overview[3] that includes basic terms and standard system set-ups.
Additional costs:
  • A building/mechanical permit is usually required to replace a furnace. Fees are typically about $50-$300 or more. Many contractors include getting the proper permits and inspections as part of the installation process.
  • Replacing aging, leaking or inadequate ductwork typically costs about $35 -$55 a linear foot for labor and materials, or $1,000-$5,000 or more for a single-family home, depending on the length and type of ducts.
  • Older ductwork might contain asbestos, creating unpredictable additional costs for asbestos removal.
  • Replacing a low- or mid-efficiency furnace with a high-efficiency model may require installing a chimney liner for about $300-$700.
Discounts:
  • The database of State Incentives for Renewables & Energy Efficiency[4] tracks energy-efficiency incentives offered by utilities and by state, federal and local government agencies. For example, utility companies in Wisconsin[5] pay a $125 "reward" for furnaces with a 90% AFUE rating and $275 for 95% models.
Shopping for a gas furnace:
  • The Environmental Protection Agency lists tips for hiring a heating and cooling contractor[6] .
  • Referrals are available from the North American Technician Excellence certification program[7] and the Air Conditioning Contractors of America[8] .
  • Request and check references; ask about length and type of experience; and be sure they are properly bonded, insured and licensed.
post Post   Comments (2)  
CostHelper News


7 Tricks To Make Home Appliances Last Longer
Give your household equipment a little workout now and then, to make sure anything mechanical will perform well when needed. Periodic exercise can extend the usable life of many items. || Posted October 14 2013


5 Important Things to Know Before a Tornado Hits
This week the Midwest has been battered by tornados, which are one of the most violent and destructive type of storms nature has in its arsenal. || Posted November 19 2013

‣ All CostHelper Blog Posts


What People Are Paying - Recent Comments
Gas furnace replaced
Amount: $6,000.00
Posted by: Harish Kumar in Parsippany, NJ.Posted: March 4th, 2019 11:03AM
Type of Gas: Natural gasAFUE Rating: 80
AJ Pierri, 120k BTU for 3200 sqft, carrier performance series with filter replacement and 1 year service
Was this post helpful to you?   yes     no Report prohibited or spam
Gas Furnace Replaced
Amount: $1,600.00
Posted by: waytzu in Buffalo Grove, IL.Posted: October 30th, 2012 08:10AM
Type of Gas: NaturalAFUE Rating: 80
Very good service. Job done in 3 hours.
10 years Warrantee on parts, 1 year on labor.
American Standard, 120,000 BTU for 2300 SQ house.
Quite, safe and warm now.
Was this post helpful to you?   yes     no Report prohibited or spam


 

Comment On Your Experience With a Gas Furnace
 
Subject:  *
Amount Spent:  *
Type of Gas: AFUE Rating: 
Comments: 
Purchased:  Year: 
City:  * State:  *
 
Information about you:
Email:  * Email addresses are not displayed.
Name:  This is the name we'll display with your post.
me on this computer
*=required field.
 



External Resources:
  1.  ecsretail.com/documents/HWDV/specs-HWDV-80-180-DV.pdf
  2.  www.cozyheaters.com/pdfs/products/floor_furnace.pdf
  3.  www.htoyh.com/content/replace_your_furnace.pdf
  4.  www.dsireusa.org/
  5.  www.focusonenergy.com/residential/efficient-products-appliances/residential-rewards
  6.  www.energystar.gov/index.cfm?c=heat_cool.pr_contractors_10tips
  7.  www.hvacradvice.com/
  8.  www.acca.org/consumer/find-a-contractor/
More Home and Garden Topics
Check Out All Costs for Home and Garden How Much Does a Kitchen Remodeling Cost? How Much Does a Propane Tank Cost? How Much Does a Plumber Cost?

Search Thousands of Topics on CostHelper.com

 
Today's Featured Cost Articles

About CostHelper
CostHelper is based in Silicon Valley and provides consumers with unbiased price information about thousands of goods and services. Our writers are experienced journalists who adhere to our strict editorial ethics policy.

CostHelper Community
Cost of care
Paid: 0.00
Wow, some of these previous comments seriously concern me. We have a dentist carrying on about how much it cost for his entire education and the cost of building and supplying an entire office... [more]
-Jason B
Dental Implants Cost
Generac 22kw quote
Paid: 18000.00
Recently quoted$18k for 2,400sq ft. Home. The generator itself is $5,300 with transfer switch. Nearly $13k install seems very high... [more]
-Jon Rad
Standby Generator Cost
2013 honda crv ignition cylinder repair
Paid: 180.00
Locksmith came to my house and repaired lock cylinder in an hour... [more]
-Brad Cowan
Ignition Lock Cylinder Replacement Cost
Teacup Pig
Paid: 100.00
Looking for a teacup pig. I’ll pay $100-300 if you have what I’m looking for in my price range please let me know... [more]
-Evelyn Hernandez
Teacup Pig Cost
You will not believe this!
Paid: 75000.00
Non emergency flight from Tucson to Phoenix this was 2021 I could have flown around the world several times what a 130 miles was these people need to go to jail for fraud and theft!I will never pay the huge bill chapter 7 only costs $2500... [more]
-Paul Polito
Air Ambulance Cost
L3-L4,L4-L5,L5-S1 multilevel laminectomies with micro disectomies.
Paid: 0.00
I had laminectomies and refused to have spinal fusion. I made a complete recovery. I had my surgery Apr/2020. Returned to work in mid-June. Feel good as new today. No back stiffness or pain... [more]
-Jose A Elizondo
Back Surgery Cost