The Dave Lennox Signature® Collection features the G61V model, the quietest and most efficient furnace you can buy. It takes furnace technology to new heights, so your utility bills reach new lows.

But that doesn't mean the rest of the Lennox line can't stand up to the heat too!

Furnaces are primarily compared using an energy efficiency rating (or AFUE - Annual Fuel Utilization Efficiency). System options, such as blower speeds and ignition methods, are also considered when choosing a system.

The G61 model, part of the Lennox Elite® Series, is a two-stage, high-efficiency furnace. Its two levels of heat offer you a higher level of comfort and control: low heat for mild days and high heat for extremely cold days.

Tight on space? The upflow configuration of the G43 allows installation in basements or closets. Just like all of the Lennox furnaces, it features a Duralok Plus Heat Exchanger: made of patented steel that's life-tested to 2.5 times standard requirements for long life and durability.

Its durable, high-quality design ensures that the Model G40 will provide you with long-lasting performance. And, like all of our Lennox products, it includes a generous warranty

Many Lennox home comfort systems also meet ENERGY STAR requirements - when used with appropriate components - and all have earned the Good Housekeeping Seal of approval.

For more detailed information, just click on one of the four Lennox models below to help you choose the system that best fits your needs.