Furnace Installation FAQs

Furnace Installation FAQs

 How much does furnace replacement cost?

Nationally, the average cost of furnace installation is $4,000. Most of this depends on what type of system you currently have and what you would like to achieve. Going from oil to gas has additional costs associated with installation including removing and disposing of the oil tank and lines and running a gas line to the furnace location. This is the same if you are converting from electric to gas, and Avista Utilities has a great program called L.E.A.P. to help cover the cost of this. But for the most part, a gas-to-gas change out typically runs $2200-4500.

How is equipment size determined for my furnace installation?

Our estimators use a calculation method to determine the heat load of your home to size your new furnace. This calculation considers many factors related to the home’s construction, occupants, and exterior elements for accuracy. We also take into account the capacity of your existing ductwork. You may feel like you want increase the size of your furnace, but this may not be possible with your current duct sizing – leading to failures of the furnace or excessive noise.

How can I tell how efficient a furnace is?

If you desire high efficiency models for furnace installation, look for furnaces with an AFUE in the 90s. AFUE stands for “annual fuel utilization efficiency”. It tells you how much heat the furnace creates for every dollar of heating fuel the unit consumes. All new furnaces must have an AFUE of at least 80%. The highest efficiency models have a rating of around 98% AFUE. How do you know what type you have? With an 80% gas furnace, you will see a metal vent, either 4” or 5” in diameter, coming off of the top of the furnace cabinet and extending through your roof. A 90% and above uses white PVC or in some cases black ABS plastic venting which may go out the side of your home or up through your roof. These can be in a single pipe or two pipe configuration.

Can I perform my own furnace installation?

Furnace installation requires advanced technical knowledge and skills to ensure a safe and accurate installation. If you don’t have this knowledge, best leave installing your furnace to the licensed professionals at The Barton Boys. Improperly venting or incorrect gas pressure can cause combustion issues including releasing deadly carbon monoxide into your home.

How long will my furnace last before I need to replace it?

The average furnace offers a service life of 15 to 20 years. With yearly maintenance, your furnace may last longer. Without it, it may fail sooner than 15 years.

Should I repair my furnace or do a furnace replacement?

If your furnace is close to the end of its estimated service life and frequent breakdowns occur, you may choose furnace replacement instead of repair. When facing repairs totaling over 50 percent of the cost to buy a new furnace, replacing the furnace may be a better investment. Our service techs are not salesmen. If you are needing repairs to your old furnace, they will gladly give you a recommendation on whether the repair makes financial sense. Availability of replacement parts, cost of the parts, and labor associated with that replacement may better spent on a new model with an extended warranty.

Is it best to replace my furnace with the same type or one that uses a different fuel source?

This is up to your preference, but switching from electric to natural gas heat can lower your operating costs. Natural gas furnaces are more efficient to run, and natural gas costs less than electricity. Many factors can affect the savings switching can generate for you, such as if you already have natural gas lines installed or if you will need to have them ran to your home. As mentioned before, Avista has the L.E.A.P. program that can pay for a large portion of your home’s conversion to natural gas. Call us for details on how this program can benefit you.

What’s the best time of year to schedule furnace replacement?

Furnace replacements and furnace installations take place year-round. Ideally, you will want to schedule this in the spring or fall. These are periods where heating and cooling contractors are generally not as busy. You’ll have more flexibility in scheduling the job and may be able to take advantage of pre and post season deals. Necessity takes priority of course, and we do our best to apply as many saving tools as we can throughout the year including Avista rebates as well as manufacturer rebates or incentives.

Should I replace my air conditioner at the same time as furnace replacement?

Replacing furnaces along with air conditioners is ideal to create balanced HVAC systems. Both systems share air handlers and indoor coils, so upgrading all equipment together can ensure all components are properly matched, and save labor. If both systems are 10+ years old and have had a lengthy repair history, you should replace them all at the same time. If one is newer, it may not be financially smart to replace it just for the sake of matching the systems.

Regardless of the question, The Barton Boys are here to help. Our in home replacement or installation estimates are free! Call today to speak with one of our highly qualified estimators today!