The Base 80 gas furnace features 80% Annualized Fuel Utilization Efficiency (AFUE) and because of its small size, it can fit in the tightest of installations.
Models: 58STA, 58STX
Warm, Comfortable Heating in a Compact Furnace
Ratings:
Energy Efficiency: 
Quiet Level:
Durability: 
Details:
- Pilot-free PowerHeat� ignition
- 10-year parts limited warranty when properly registeredTo the original owner, the Carrier Base™ 80 Gas Furnace is covered by a 10-year parts and 20-year heat exchanger limited warranty upon timely registration of your new equipment. Ask your Carrier dealer about optional extended warranties, which may include labor. Warranty period is 5 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty. See warranty certificate at carrier.com for complete details.
- Energy efficiency-80% AFUE