Some of the Best Gas Furnaces You Can Buy in Opelika

If you’re searching for a gas furnace replacement in East-Central Alabama, our Dave Lennox Signature Collection gas furnaces are the best option. These models are two of the quietest gas furnaces out there and are highly energy efficient.

We’ll start with energy efficiency. Our Dave Lennox Signature Collection gas furnaces include variable speed motors, which limit energy use by only operating fans at full speed when extreme heat is required. Variable speed motors use two-thirds less energy than single speed motors and may help your family save hundreds of dollars on your annual utility bills compared to standard furnaces.

More details for each Dave Lennox Signature Collection gas furnace model are included below. To talk with a Farnell Mechanical, Inc. professional about one of our products in East-Central Alabama, call 334-245-4748 or schedule an appointment online.

SLP98V Variable-Capacity Gas Furnace

You will appreciate the energy efficiency of this gas furnace. It’s ENERGY STAR® qualified for meeting EPA efficiency standards, and it has received an annual fuel utilization efficiency (AFUE) rating* of 98.2%. Add those together and you can get hundreds of dollars back in utility savings each year. Learn about some of the SLP98V’s other great features, including:

  • Efficiency rating of up to 98.2% AFUE*—can save you money on your utility expenses
  • ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency
  • Variable-capacity operation works much like the cruise control system of high-performance automobiles, adjusting automatically as necessary to achieve maximum fuel efficiency
  • iComfort®-enabled technology—helps the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to offer even better performance and efficiency
  • PreciseComfort™ technology provides great temperature control
  • SilentComfort technology allows the system to run quietly
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to keep heat in and reduce heat loss
  • 10-Year Limited Warranty on parts and controls
  • Limited Lifetime Warranty on heat exchanger
SLP98V Variable-Capacity Gas Furnace
Efficiency Rating (SEER): up to 98.7
Price Guide: $$$Energy Star badge

SL280NV Variable Speed, Ultra-Low Emissions Gas Furnace

The SL280NV gas furnace can help decrease your utility bills while keeping your home comfortable all winter. Even on the coldest days, its quiet, two-stage heating will keep temperatures consistent while using as little fuel as possible. You can also breathe easy knowing this furnace contributes to a stronger environment—inside and outside. As the first lowest emission furnace on the market,1 it produces 65 percent less nitrogen oxide than standard low-NOx furnaces. Less NOx means cleaner air and plants. This furnace also features:

  • Efficiency rating of up to 80% AFUE2—which can likely save you more money on energy bills.
  • Ultra-low speed continuous fan adjusts humidity and distributes healthier air.
  • iComfort®-enabled technology—when installed with an iComfort® S30 Ultra Smart Thermostat, becomes familiar with your family’s schedule and sets heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation ensures quiet performance.
  • Dual-fuel capable—Use with an electric Lennox® heat pump for top efficiency.
  • SureLight® ignition offers efficient performance.
  • Insulated blower component holds on to more heat.
  • 20-Year Limited Warranty on the heat exchanger.
  • 10-Year Limited Warranty on remaining covered components.3

1Lennox® SL97UH40NV36B, EL195UH100NE60C, SL280UH100NV60C and EL180UH040NE36A units are the first commercially available, natural Gas-Fired Fan-type Central Furnaces to meet an NOx emission limit of 14 nanograms per Joule (ng/J).
2Annual Fuel Utilization Efficiency (AFUE) measures how efficiently an appliance converts fuel into heat over the course of a year.
3Applies to residential applications only. See actual warranty certificate for details.

Note: Due to Lennox’s ongoing commitment to quality, specifications and ratings are subject to change without notice.

SL280V Variable Speed Gas Furnace
Efficiency Rating (SEER): up to 80
Price Guide: $$$Energy Star badge

SL297NV Variable-Speed, Ultra-Low Emissions Gas Furnace

Enjoy energy efficiency that flawlessly acclimates to your schedule with the SL297NV gas furnace. Not only can this furnace help you save on energy expenses, it’s an environmentally friendly choice. As the first lowest emission furnace on the market,1 the SL297NV emits 65 percent less nitrogen oxide than standard low-NOx furnaces. You can rest easy knowing your heating system is creating cleaner air and stronger plants. Recognized with ENERGY STAR® accreditation, this furnace has the capacity to save you hundreds of dollars a year on utility expenses. It also features:

  • Efficiency rating of up to 97.5% AFUE2—potentially keeping more money in your pocket because of reduced energy use.
  • Intuitive fan mode that can regulate humidity and create cleaner air.
  • iComfort®-enabled technology, when installed with an iComfort® S30 Ultra Smart Thermostat, acclimates to your family’s routine for the highest energy savings.
  • SilentComfort™ technology and sound-absorbing insulation means your furnace will operate quietly.
  • Dual-fuel capable—Can be linked with an electric Lennox® heat pump for top efficiency.
  • SureLight® ignition gives efficient heating.
  • Insulated blower component stops heat loss.
  • Stainless-steel secondary heat exchanger holds on to extra heat, permitting the furnace to reach higher efficiency levels.
  • Lifetime Limited Warranty on the heat exchanger.
  • 10-Year Limited Warranty with product registration.
  • 5-Year Limited Warranty on remaining covered components.3

1Lennox® SL97UH40NV36B, EL195UH100NE60C, SL280UH100NV60C and EL180UH040NE36A units are the first commercially available, natural Gas-Fired Fan-type Central Furnaces to meet an NOx emission limit of 14 nanograms per Joule (ng/J).
2Annual Fuel Utilization Efficiency (AFUE) measures how efficiently an appliance converts fuel into heat over the course of a year.
3Covered components may be eligible to receive a 10-year warranty. Online equipment registration at www.lennoxregistration.com is required within 60 days of installation (except in California and Quebec) or the Lennox® base warranty will apply. Applies to residential applications only. See actual warranty certificate for details.

Note: Due to Lennox’s ongoing commitment to quality, specifications and ratings are subject to change without notice.

SL297NV Variable-Speed, Ultra-Low Emissions Gas Furnace
Efficiency Rating (SEER): up to 97.5
Price Guide: $$$Energy Star badge

Farnell Mechanical, Inc. in Opelika is ready to help with any of your gas furnace replacement, repair or maintenance needs. Call 334-245-4748 or use our online scheduler to make your appointment.


* Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.