Some of the Best Gas Furnaces You Can Buy in Des Moines

If you’re in need of a gas furnace replacement in Johnston, our Dave Lennox Signature Collection gas furnaces are all great options. These products are a couple of the quietest gas furnaces available and are very energy efficient.

Let’s begin with energy efficiency. Our Dave Lennox Signature Collection gas furnaces feature variable speed motors, which save energy by only working fans at full speed when an extreme change in heat is required. Variable speed motors use 66% less energy than single speed motors and may help your family save hundreds of dollars on yearly utility expenses compared to standard furnaces.

Product specifications for each Dave Lennox Signature Collection gas furnace model are provided below. To talk with a Kohles & Bach Heating & Cooling staff member about one of our products in Johnston, call 515-207-6569 or make an appointment online.

SLP98V Variable-Capacity Gas Furnace

You will appreciate the energy efficiency of this gas furnace. It’s earned the ENERGY STAR® label 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. Find out more about 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 operates much like the cruise control system of high-performance automobiles, adjusting automatically as necessary to provide maximum fuel efficiency
  • iComfort®-enabled technology—enables 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 helps the system run quietly
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to trap heat in and minimize 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 reduce your heating bills while keeping your home cozy all winter. Even on frigid days, its quiet, two-stage heating will keep temperatures stable while using as little gas as possible. You can also breathe easy knowing this furnace contributes to a better environment—inside and outside. As the first lowest emission furnace on the market,1 it emits 65 percent less nitrogen oxide than standard low-NOx furnaces. Less NOx means fresher air and plants. This furnace also features:

  • Efficiency rating of up to 80% AFUE2—which can potentially save you more money on utility costs.
  • Ultra-low speed continuous fan regulates humidity and provides healthier air.
  • iComfort®-enabled technology—when installed with an iComfort® S30 Ultra Smart Thermostat, learns your family’s schedule and adapts heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation provides quiet performance.
  • Dual-fuel capable—Install with an electric Lennox® heat pump for the most efficiency.
  • SureLight® ignition offers efficient performance.
  • Insulated blower component hangs 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 smoothly adapts to your schedule with the SL297NV gas furnace. Not only can this furnace help you save on utility costs, it’s a green choice. As the first lowest emission furnace on the market,1 the SL297NV makes 65 percent less nitrogen oxide than standard low-NOx furnaces. You can rest easy knowing your heater is resulting in fresher air and more robust plants. Recognized with ENERGY STAR® designation, this furnace has the capability to save you hundreds of dollars annually on heating bills. It also features:

  • Efficiency rating of up to 97.5% AFUE2—potentially keeping more money in your pocket on the account of reduced energy use.
  • Intuitive fan mode that can manage humidity and create healthier air.
  • iComfort®-enabled technology, when installed with an iComfort® S30 Ultra Smart Thermostat, acclimates 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 combined with an electric Lennox® heat pump for top efficiency.
  • SureLight® ignition gives efficient operation.
  • Insulated blower component stops heat loss.
  • Stainless-steel secondary heat exchanger holds on to more heat, permitting the furnace to achieve greater 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

Kohles & Bach Heating & Cooling in Des Moines is available to help with any of your gas furnace replacement, repair or maintenance needs. Call 515-207-6569 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.