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Lennox Furnaces

The quietest and most efficient furnace you can buy*!

The quietest furnace in its class*

High-efficiency, variable-speed gas furnace

Two-stage furnace with Power Saver technology

Consistent temperatures with two-stage heating

Single-stage furnace with Power Saver technology

Efficient gas furnace featuring Power Saver technology

High-efficiency gas furnace

Economical, high-efficiency gas furnace

Economical, standard-efficiency gas furnace

Variable-speed oil furnace

Quiet and efficient oil furnace