Keep your high-efficiency gas furnace running with these 3 easy furnace repairs (Bonus: 2 repairs that you should never attempt on your own).

If the humidifier on your furnace is not working, you can easily fix or replace it yourself. Simply follow our step-by-step photos and…

More expensive (electrostatic) furnace filters capture smaller particles and need less changing than cheaper (pleated) and the cheapest (woven…

If your furnace quits or breaks down try these eight simple solutions before you call for service help. You can solve the problem and avoid a…

Before you sit down with an HVAC contractor to talk about your furnace, read up on what our pros and field editors think you need to…

A high-efficiency furnace filter can slow airflow too much, but low-efficiency filters don't filter dust very well. Get a better…

Check your furnace filter monthly and change it when it's dirty. You'll get better heating in the winter and air conditioning in…

Winter’s tough enough without your furnace dying or not putting out enough heat. And when it comes to furnaces, an ounce of prevention…

Keep your furnace running efficiently and safely and prevent the hassle of breakdowns with a few simple maintenance procedures. We’ll…

Older rain caps for metal chimneys and flue liners can deteriorate or fall apart, but installing a replacement cap is as easy as climbing onto…

HVAC units that cycle on and off quickly or erratically may just need minor thermostat adjustments. Check level first, then take a look at the…