Some of the Best Gas Furnaces You Can Buy in Lake Forest

If you’re looking for a gas furnace replacement in Orange County, our Dave Lennox Signature Collection gas furnaces are an excellent choice. These products are two of the quietest gas furnaces you can find and are very energy efficient.

Let’s start with energy efficiency. Our Dave Lennox Signature Collection gas furnaces include variable speed motors, which conserve energy by only working fans at full speed when extreme heat is required. Variable speed motors use 66% less energy than single speed motors and could help you save big on utility expenses each year compared to standard furnaces.

Product details for each Dave Lennox Signature Collection gas furnace model are provided below. If you want to talk with a 1st Choice Heating & Air Conditioning, Inc. team member about one of our products in Orange County, call 949-204-0859 or set up 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%. Add those together and you can get hundreds of dollars back in utility savings each year. Learn about some of the SLP98V’s other impressive features, including:

  • Efficiency rating of up to 98.2% AFUE*—helps you save on 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, automatically making adjustments as necessary to achieve maximum fuel efficiency
  • iComfort®-enabled technology—allows the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to provide even better performance and efficiency
  • PreciseComfort™ technology provides the best in temperature control
  • SilentComfort technology allows the system to run quietly
  • SureLight® ignitor for an efficient performance
  • Insulated blower compartment to trap 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 reduce your energy expenses while keeping your home cozy all winter. Even on the chilliest days, its quiet, two-stage heating will keep temperatures regular while using as little gas as possible. You can also breathe easy knowing this furnace contributes to a healthier 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 healthier air and plants. This furnace also features:

  • Efficiency rating of up to 80% AFUE2—which can likely save you more money on heating costs.
  • Ultra-low speed continuous fan adjusts humidity and provides healthier air.
  • iComfort®-enabled technology—when linked with an iComfort® S30 Ultra Smart Thermostat, adjusts to your family’s schedule and adjusts heating for energy savings.
  • SilentComfort™ technology and sound-absorbing insulation provides quiet heating.
  • Dual-fuel capable—Pair with an electric Lennox® heat pump for highest efficiency.
  • SureLight® ignition gives efficient performance.
  • Insulated blower component retains 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 adjusts to your lifestyle with the SL297NV gas furnace. Not only can this furnace help you save on utility bills, it’s an environmentally responsible 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 heating system is contributing to fresher air and healthier plants. Recognized with ENERGY STAR® accreditation, this furnace has the potential to save you hundreds of dollars annually on utility bills. It also features:

  • Efficiency rating of up to 97.5% AFUE2—possibly keeping more money in your pocket due to reduced energy use.
  • Intuitive fan mode that can control humidity and create healthier air.
  • iComfort®-enabled technology, when installed with an iComfort® S30 Ultra Smart Thermostat, learns your family’s schedule for the most 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 gives efficient heating.
  • Insulated blower component limits heat loss.
  • Stainless-steel secondary heat exchanger catches additional heat, letting the furnace to reach better 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

1st Choice Heating & Air Conditioning, Inc. in Lake Forest is eager to help with any of your gas furnace replacement, repair or maintenance needs. Call 949-204-0859 or use our online scheduler to create 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.