Lennox Residential
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Furnaces

Designed to deliver reliable and economical warmth, Lennox® furnaces have efficiency ratings from 80% all the way up to 98.2% AFUE. And many are ENERGY STAR® qualified, which means they can significantly lower your utility bills, compared to conventional models. For optimal comfort and efficiency, a gas furnace can be combined with an electric heat pump in one dual-fuel system.

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Key Terms | Price Guide

To compare, select any three models and click "compare"
Gas Furnaces
Dave Lennox Signature® Collection Elite® Series Merit® Series
Lennox’ finest, most innovative heating, cooling and indoor air quality systems. Environmentally sound engineering, along with legendary quality and reliability from the brand you trust. Outstanding reliability and comfort at an excellent value.
SLP98V Variable-Capacity Gas Furnace

The most efficient and quietest furnace you can buy1!

Efficiency Rating: up to 98.2% AFUE
Price Guide: $$$
Energy Star compliant Tax Credit Eligible New Product
SL280V Variable Speed Gas Furnace

The quietest furnace in its class2

Efficiency Rating: 80% AFUE
Price Guide: $$$
Tax Credit Eligible New Product
G61V High-Efficiency Gas Furnace

High-efficiency, variable speed gas furnace

Efficiency Rating: up to 95% AFUE
Price Guide: $$$
Energy Star compliant Tax Credit Eligible
G61 Gas Furnace

Two-stage, high-efficiency heating

Efficiency Rating: up to 95% AFUE
Price Guide: $$
Energy Star compliant Tax Credit Eligible
G51 Gas Furnace

High-efficiency, high-comfort heating

Efficiency Rating: 92.1% AFUE
Price Guide: $$
Energy Star compliant
G60 Gas Furnace

Efficient, consistent two-stage heating

Efficiency Rating: 80% AFUE
Price Guide: $$
G50 Gas Furnace

Efficient, consistent home heating

Efficiency Rating: 80% AFUE
Price Guide: $$
G43 Gas Furnace

Economical, high-efficiency gas heating

Efficiency Rating: up to 92.1% AFUE
Price Guide: $
Energy Star compliant
G40 Gas Furnace

Reliable, mid-efficiency gas furnace

Efficiency Rating: 80% AFUE
Price Guide: $
Oil Furnaces
Dave Lennox Signature® Collection Elite® Series
Lennox’ finest, most innovative heating, cooling and indoor air quality systems. Environmentally sound engineering, along with legendary quality and reliability from the brand you trust.
O23V Oil Furnace

Variable speed for superior comfort

Efficiency Rating: up to 83% AFUE
Price Guide: $$$
Tax Credit Eligible
O25 Oil Furnace

Clean, quiet and comfortable home heating

Efficiency Rating: up to 84% AFUE
Price Guide: $$
O23 Oil Furnace

Clean, quiet and comfortable home heating

Efficiency Rating: up to 83% AFUE
Price Guide: $$
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