| Product Overview: Lennox G43 Furnace (Merit Series) Economical, high-efficiency gas heating |  | | | Lennox G43 Furnace - Merit Series ENERGY STAR® qualified - Meets or exceeds EPA guidelines for energy efficiency | Features: Energy Efficiency - Efficiency rating of up to 92.1% AFUE – Can save you hundreds of dollars each year, compared to standard furnaces
- ENERGY STAR® qualified - Meets or exceeds EPA guidelines for energy efficiency
Reliable Performance - 20-Year Limited Warranty on heat exchanger
- 5-Year Limited Warranty on covered components
- This product has earned the prestigious Good Housekeeping Seal

Proudly Serving Colorado in the Following Locations: Longmont, Boulder, Niwot, Gunbarrel, Erie, Frederick Firestone, Dacono, Louisville, and Lafayette.
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