These are high efficiency furnaces. They are 10-14.9% more efficient than the low efficiency furnaces. This means you will save 10-14.9% more off your gas bill with one of these furnaces than if you select a low efficiency model.

• Upflow furnaces are suitable for basement or closet installations.
• Horizontal flow furnaces are suitable for attic or crawl space installations.

• Downflow furnaces are suitable for attic or closet installations.
• Horizontal flow furnaces are suitable for attic or crawl space installations.

Select if:

• You will be installing a new furnace. Check out these accessories which you may want or need.