Using A Permanent Furnace Filter

Everyone knows that you should change your furnace filter regularly. This can be a minor hassle as you have to have new filters on hand. Filters come in many sizes and thicknesses, and it can be difficult to remember exactly what filter you need when you are at the...

What Makes A High Efficiency Furnace High Efficiency?

I am replacing an HVAC system in an older home (1970s). Although the new furnace looks similar to the old one it has features that make it more efficient. The old furnace was 80% efficient. This means that 80% of the heat contained in the natural gas that it used was...