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Questions To Ask When Replacing Furnace

January 16, 2026
questions to ask when replacing furnace

Most furnaces can last between 15 and 20 years with routine maintenance. Heating equipment is one of the largest expenses for homeowners and buying the right furnace for your home could be a challenge. The right system can help save you money on your monthly bills. There are a few key questions to ask to ensure that the new system you choose is the right investment for you and your home.

What types of furnaces are available?

The two main types of systems for modern central heating systems are packaged and split. You can also choose to install a variable-speed furnace which can change speed of the blower as it distributes air through your home. This can help the temperature in your home constant while also saving energy and reducing noise.

What is the furnace fuel source?

You can choose between natural gas furnaces or electric furnaces. Natural gas furnaces are common in most homes, they ignite the gas with a pilot light using burners to warm your home. Electric furnaces are common as well but do not burn fuel to warm your home. They bring cold air into the unit and push heated air out. Electric heat pumps are more efficient than gas furnaces because they transfer heat instead of producing it and double as an ac unit.

How efficient is the furnace?

Furnace energy efficiency is measured by the Annual Fuel Utilization Efficiency or (AFUE) and determines what percent of the energy becomes heat. A furnace is considered high efficiency with an AFUE of at least 90%. All electric furnaces usually have an efficiency of 95 to 100%. Although a more efficient furnace may cost more upfront, lower utility bills will make the investment worthwhile in the long run. All new furnaces have a label with an AFUE rating and the furnace’s estimated costs under different conditions making comparison shopping easier.

How noisy is it?

The furnace noise level depends on the fan and combustion chamber insulation. It also depends on whether you purchase a single stage or two stage furnace, the latter being less noisy.

When is the best time of year to replace the furnace?

You can replace your furnace in any season, but it is better not to wait until the busy season in the middle of winter. Upgrading off season means there will be less demand for new furnaces. Keep in mind that if you wait until winter to replace, you could have longer wait times for equipment and installation.

Should I replace my furnace and ac at the same time?

It is good practice to replace both your air conditioner and furnace at the same time, to help save on installation costs. Pairing a new unit with an old unit can also put unnecessary strain on your newer unit because they share components.

How much will installation cost?

The cost of a new furnace will vary depending on size, type and efficiency. Ductwork replacement will also raise the price. For furnace only replacement it can range anywhere between $4,500 and $7,500. A larger home, complex floor plan can also increase the price.

Can I Install a new Furnace on my Own?

Furnace install may seem easy, but it is never a good idea to do it yourself. No matter what furnace you decide on, you will need a licensed contractor to carry out a safe installation. It is important to note that gas furnace safety depends on safe and proper installation. If the vent of your gas furnace is not properly installed or becomes blocked it can lead to carbon monoxide poisoning.

Is maintenance necessary?

Routine maintenance is necessary for even brand new systems. Check your air filter monthly and replace it when it gets dirty or at least once every 3 months. Schedule furnace maintenance with a professional at least once a year to help prevent untimely breakdowns, keep your indoor air quality high and keep your system running smoothly and as efficiently as possible. Neglecting routine maintenance can shorten your HVAC system’s life.

Contact Us For Furnace Replacement

Are you looking to replace your furnace? Are you in need for repairs or routine furnace maintenance? Have questions about furnace replacement? We are here to help, contact us today at 818-341-3406 or contact us online to schedule an appointment. We offer free furnace installation consultations. We look forward to hearing from you!

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