Some of the Best Gas Furnaces You Can Buy in Phoenix

If you’re in need of a gas furnace replacement in Central Arizona, our Dave Lennox Signature Collection gas furnaces are all great options. These systems 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 feature variable speed motors, which limit energy use by only running fans at full speed when a large change in heat is required. Variable speed motors use two-thirds less energy than single speed motors and could help you save big on utility expenses each year compared to other furnaces.

More details for each Dave Lennox Signature Collection gas furnace model are explained below. If you’d like to talk with a Dial One Mears Air Conditioning & Heating Inc staff member about one of our products in Central Arizona, call 602-832-7808 or make 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 an annual fuel utilization efficiency (AFUE) rating* of 98.2%. Combined, these two ratings help you save hundreds annually on your utility expenses. Discover 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 runs 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 generate even better performance and efficiency
  • PreciseComfort™ technology provides the best in temperature control
  • SilentComfort technology for some of the quietest operation you can find
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to keep air in and decrease 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 energy bills while keeping your home comfortable all winter. Even on frigid days, its quiet, two-stage heating will keep temperatures stable while using as little energy 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 potentially save you more money on energy expenses.
  • Ultra-low speed continuous fan controls humidity and distributes healthier air.
  • iComfort®-enabled technology—when linked with an iComfort® S30 Ultra Smart Thermostat, adjusts to your family’s routine and sets heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation delivers quiet operation.
  • Dual-fuel capable—Install with an electric Lennox® heat pump for the most 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 adjusts to your schedule with the SL297NV gas furnace. Not only can this furnace help you save on energy costs, it’s a green choice. As the first lowest emission furnace on the market,1 the SL297NV produces 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® designation, this furnace has the capacity to save you hundreds of dollars each year on energy expenses. It also features:

  • Efficiency rating of up to 97.5% AFUE2—possibly keeping more money in your pocket due to lower energy use.
  • Intuitive fan mode that can regulate humidity and create purer air.
  • iComfort®-enabled technology, when installed with an iComfort® S30 Ultra Smart Thermostat, adjusts to your family’s activities for optimal 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 maximum efficiency.
  • SureLight® ignition delivers efficient performance.
  • Insulated blower component stops heat loss.
  • Stainless-steel secondary heat exchanger holds on to additional 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

SL280NV Variable-Speed, Ultra-Low Emissions Gas Furnace

The SL280NV gas furnace can help decrease your energy bills while keeping your home comfortable all winter. Even on frigid days, its quiet, two-stage heating will keep temperatures stable while using as little energy 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,2 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% AFUE1—which can potentially save you more money on energy expenses.
  • Ultra-low speed continuous fan controls humidity and distributes healthier air.
  • iComfort®-enabled technology, when linked with an iComfort® S30 Ultra Smart Thermostat, adjusts to your family’s routine and sets heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation delivers quiet operation.
  • Dual-fuel capable—Install with an electric Lennox® heat pump for the most 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.
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.

SL280NV Variable-Speed, Ultra-Low Emissions Gas Furnace
Price Guide: $$$
Efficiency Rating (SEER): up to 80
Energy Star badge

Dial One Mears Air Conditioning & Heating Inc in Phoenix is ready to help with any of your gas furnace replacement, repair or maintenance needs. Call 602-832-7808 or use our online scheduler to set up 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.