Some of the Best Gas Furnaces You Can Buy in Clackamas

If you’re searching for a gas furnace replacement in Portland, our Dave Lennox Signature Collection gas furnaces are all great options. These systems are some of the quietest gas furnaces you can find and are extremely energy efficient.

We’ll start with energy efficiency. Our Dave Lennox Signature Collection gas furnaces feature variable speed motors, which save energy by only operating fans at full speed when an extreme change in heat is required. Variable speed motors use 66% less energy than single speed motors and could help you save big on yearly utility expenses compared to standard furnaces.

More details for each Dave Lennox Signature Collection gas furnace model are explained below. To talk with a Central Air Inc team member about one of our products in Portland, call 503-389-5307 or make an appointment online.

SLP98V Variable-Capacity Gas Furnace

You’ll enjoy the high efficiency of this gas furnace. It’s certified by ENERGY STAR® for meeting EPA efficiency standards, and it has an annual fuel utilization efficiency (AFUE) rating* of 98.2%. These two efficiency ratings will help you receive lower utility bills every year. Discover the SLP98V’s other outstanding 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—enables the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to provide 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 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

SL297NV Variable-Speed, Ultra-Low Emissions Gas Furnace

Enjoy energy efficiency that flawlessly adjusts to your daily life with the SL297NV gas furnace. Not only can this furnace help you save on heating expenses, 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 furnace is contributing to purer air and stronger plants. Recognized with ENERGY STAR® designation, this furnace has the capability to save you hundreds of dollars a year on heating bills. It also features:

  • Efficiency rating of up to 97.5% AFUE2—possibly keeping more money in your pocket on the account of reduced 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, acclimates to your family’s schedule for optimal energy savings.
  • SilentComfort™ technology and sound-absorbing insulation means your furnace will heat quietly.
  • Dual-fuel capable—Can be used with an electric Lennox® heat pump for maximum efficiency.
  • SureLight® ignition provides efficient performance.
  • Insulated blower component restricts heat loss.
  • Stainless-steel secondary heat exchanger holds on to extra heat, permitting the furnace to reach 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

Central Air Inc in Clackamas is eager to help with any of your gas furnace replacement, repair or maintenance needs. Call 503-389-5307 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.