Like all the top brands, Lennox offers several gas furnaces lines to meet the demands of the entire market. The Dave Lennox Signature Collection is the best, followed by the Lennox Elite and Lennox Merit series. In this article, we explore the differences in Lennox gas furnaces so you can decide which one is right for your home.
Dave Lennox Signature Series Gas Furnaces
There are 2 models in this line. For those in cool climates or fans of green technology, the Lennox Signature Series SLP98V is 98.2% efficient, one of the highest ratings on the market. For warmer climates, the Dave Lennox Signature SL280V is an 80% efficient furnace. Both offer staged heating for optimal indoor comfort. The Lennox SLP98V does it with a modulating gas valve. Sensors constantly monitor indoor temperature and modulate the heat produced by the burner to maintain precisely even indoor temperatures. The Lennox Signature Series SL280V has a 2-stage gas valve that runs on low capacity most of the time. Both models have longer run cycles that produce gentle heat to eliminate warm and cold spots in the home. Both models also have variable-speed fans to enhance their ability to create a comfortable indoor climate with better air filtration and humidity control. These furnaces will boost the SEER rating of a central air conditioner included in the split system.
Lennox Elite Series Gas Furnaces
Lennox makes 6 Elite Series gas furnaces in 2 different efficiency levels. The 95% efficient furnaces are these: The Lennox Elite G61V with 2-stage heating and a variable-speed fan. The Lennox Elite G61 with 2-stage heating and a single-speed fan. The Lennox Elite EL195E with an energy-efficient blower motor and the Elite EL195 with single-stage heating and single-speed fans. These models rate as high as Signature Series models in many gas furnace ratings.
The 80% AFUE models are the Lennox Elite G60 which is a 2-stage, variable-speed furnace and the Lennox Elite G50, an affordable single-stage, single-speed model. With 80%, AFUE they are less expensive and are a good choice where the heating season is shorter. The difference in performance gives you the option of increased comfort (Elite G60) or greater cost savings (Elite G50).
Lennox Merit Series Gas Furnaces
All Lennox Merit furnaces are all single-stage, single-speed models and are the most affordable from Lennox. They come in different efficiencies to meet your needs. They are the Lennox Merit ML195 (95%), the Merit ML193 (93%) and the ML180 (80%) and the ML180E (80%) with a more energy-efficient ECM blower.
Warranty Information
The Lennox Signature Series furnaces are backed by a 10-year parts limited warranty. Elite Series and Merit Series furnaces offer 5-year parts limited warranties. All Lennox furnaces have a lifetime heat exchanger limited warranty.
Summary
As you can see, there is quite a diversity of models in terms of efficiency and performance. That diversity leads to a corresponding range of prices. Those with 95% efficiency and higher are Energy Star qualified furnaces. Whatever efficiency and performance needs you have, there is a Lennox furnace to match. Here is an overview of all the Lennox gas furnaces and their efficiency levels in parentheses:
Dave Lennox Signature Series: Dave Lennox Signature Collection SLP98V (98.2%), Dave Lennox Signature Collection SL280V (80%).
Lennox Elite Series: Lennox Elite G61V (95%), Lennox Elite G61 (95%), Lennox Elite EL195E (95%), Lennox Elite EL195 (95%), Lennox G60 (80%) and Lennox G50 (80%).
Lennox Merit Series: Lennox Merit ML195 (95%), Merit ML193 (93%), Lennox ML180 E (80%) and Lennox ML180 (80%).
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Our Lennox G20 broke down twice this year, both times due to a circuit board burned out by a power surge. I’d like to know which furnaces incorporate surge protection.
Typically this is done by the contractor – however the higher end brands will likely have a surge protector