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Furnaces

American Standard HVAC technician installing a gas furnace.

What is AFUE for a furnace?

How does AFUE affect furnace efficiency?

What is the difference between a condensing and non-condensing furnace?

What are heating stages in a furnace?

What is a single-stage furnace?

What is a two-stage furnace?

What is a modulating furnace?

What is a variable-speed blower motor?

Should homeowners replace the outdoor HVAC unit when replacing a furnace?

What is a dual-fuel heat pump system?

Why is HVAC contractor selection important for furnace replacement?

What is a furnace load calculation?

How long can a new furnace last?

Can homeowners finance a furnace replacement?

Learn what to consider when replacing a furnace, including AFUE ratings, condensing furnaces, heating stages, HVAC sizing, dual-fuel systems, and installation considerations.

Furnace Replacement: A Buyer’s Guide

6 Tips to Save Money and Lower Your Heating Costs This Fall and Winter

8 Furnace Installation FAQs

Top 5 Signs You Need to Schedule Furnace Repair

furnace not kicking on

furnace short cycling

furnace not igniting

furnace not blowing hot air

furnace not turning on

repair furnace

furnace service and repair

furnace repair

As the chill of winter sets in, the last thing you want to worry about is your furnace. A malfunctioning heater can quickly turn cozy nights into uncomfortable ones, especially when temperatures drop. The good news is that by spotting warning signs early – like strange noises, clogged filters, or thermostat issues – you can often avoid bigger, costlier repairs.

10 Most Common Furnace Repairs

Learn the top things to consider when you’re in the market for a new furnace. If your furnace went out during the latest cold snap, you need to do some quick research. Or if you read our blog on warning signs you need to replace your furnace,  you may have a little more time. In either case, we’ve pulled together some information to help you make an informed decision before buying a new furnace. Let’s start with the types of furnaces.

Top 6 Considerations When Buying a New Furnace

Heater smells like burning?

Heater smells like burning when first turned on?

Heat smells like burning?

Heater smells burnt?

Why does my heat smell like burning?

Why Does My Heater Smell Like It's Burning?

If you notice a burning smell from the furnace vents, you may not need to do anything. But you may need to play detective to find the source of the burning odor.

Why Does My Heater Smell Like It’s Burning?

How often should I change my furnace filter?

Stay warm and cozy while separating fact from fiction when it comes to taking care of your furnace and saving energy.

6 Common Furnace Myths: Debunked and Explained