How it works
Furnaces distribute heated air through a system of supply and return ducts—they are also known as "forced hot air systems." High-efficiency models in this category are condensing models. Unlike older models, they have sealed combustion that uses outside air to fuel the burner, reducing drafts and improving safety.
Is it right for your home?
- Upgrading your furnace may allow you to purchase a smaller size, if your current one is too large.
- These furnaces require filters to be changed every few months to keep the unit operating properly.
- To ensure high performance, these units should be tuned-up annually by a licensed HVAC technician.
- You can save more than $60 in annual fuel costs by switching to a new high efficiency model.