I want a top-of-the-line furnace, the quietest and most efficient, with all the bells and whistles I want an efficient furnace, but am not concerned about maintaining exact temperature I need an efficient and quiet furnace that keeps my home heated more evenly than my current unit I want affordability and consistent temps but am not concerned by noise levels I want a furnace that is more efficient than my old unit I need the basic, model that's a higher quality than the furnace I'm replacing
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Dave Lennox Signature® Collection | The Most Efficient & Quietest Furnaces

For the best protection from Iowa's cold winters, the Dave Lennox Signature® Collection of furnaces could be exactly what you're looking for. Our top-of-the-line selection are the most precise, efficient and quiet heating systems available. They're engineered for perfect warmth and savings, even on the coldest winter days.

Variable-Speed Furnaces

Variable speed technology delivers greater humidity control and consistent airflow for improved comfort and indoor air quality.

Silent comfort technology.

SilentComfort™ Technology

SilentComfort™ technology combines advanced engineering with sound-absorbing materials to deliver the ultimate in quiet performance

Dave Lennox Signature® Series Collection of Furnaces

The furnaces we offer from the Dave Lennox Signature® Collection are equipped to be as cost-effective and as quiet as possible. Both the SLP98V and SL280V are iComfort®-enabled for smart and simple comfort control, and the iComfort function makes them compatible with other Lennox units for a whole-home system with maximum efficiency. The Signature® furnaces have a 10-year limited warranty on covered components and their additional shared features include:

  • A variable-speed fan motor to prevent temperature swings and provide a consistent flow of air
  • SilentComfort™ technology for peace, quiet and comfort
  • Sealed blower compartment and patent-pending burner box to minimize heat loss and reduce noises while firing
  • SureLight® hot surface ignition

Furnaces for Sale


The quietest furnace that regulates temperatures to perfection - SLP99V

AFUE Rating: 99

The SLP99V uses Precise Comfort® technology to adjust fan speed, heat and airflow capacity in increments as small as 1% to maintain your home’s heat within a 0.5 degree of the designated temperature. SilentComfort™ technology makes this furnace the quietest you can buy. The unprecedented efficiency ratings and unique customization features that the SLP99V offers make it the ideal furnace for busy homeowners.

AFUE rating.

The smart and simple furnace that optimizes whole-home comfort - SL280V

AFUE Rating: 80

The two-stage heating that the SL280V offers will automatically alternate between high and low output based on how cold it is outside, making it a smart and efficient furnace option. The SL280V has a continuous ultra-low fan speed that provides a quiet and constant flow of air for improved indoor air quality.

AFUE rating.


AFUE Rating

AFUE stands for Annual Fuel Utilization Efficiency, and is expressed as a percentage of how energy efficient the heating system is. A higher AFUE means higher efficiency.

iComfort®-enabled technology**

Allows the furnace, when installed with the easy-to-use programmable iComfort Wi-Fi® thermostat, to exchange information and make adjustments as needed to optimize performance and efficiency.

Energy Star® Certified

Most Efficient 2018 SLP98V - “Now EPA introduces ENERGY STAR Most Efficient 2018, a new distinction that recognizes products that deliver cutting edge energy efficiency along with the latest in technological innovation. It is an award that truly represents the best of ENERGY STAR.”

Contact Lozier for Warmth All Winter Long

For maximum heat and efficiency with minimal energy costs, look no further than Lozier’s Dave Lennox Signature® Collection of furnaces. Experience reliable, consistent temperatures no matter how cold it is outside, and enjoy the peace and quiet as your furnace works silently in the background with SilentComfort™ technology. For help finding the right furnace for your home, contact Lozier online, call our 24/7 telephone line at (515) 267-1000 or text our team at (515) 393-4262.

* Based on Iowa. This chart depicts potential energy savings you can expect from the SLP98V and SL280V furnace, versus older furnaces with lower efficiency ratings. Criteria used in this example are 2,000 full-load heating hours, with a 60,000 Btuh heating design load and $1.368 ccf for gas. Your actual savings may vary, depending on the weather patterns in your local area, local fuel rates and your individual lifestyle.

**iComfort Wi-Fi® Touchscreen thermostat must be installed with an iComfort-enabled indoor unit for maximum performance.

† Based on sound pressure levels during steady-state, high-fire and low-fire operation of Lennox SLP98UH070XV36B and leading competitive units as of July 2013 at mid-point temperature rise and minimum external static pressure when set up per Section 4.4.4 of AHRI 260-2012. Based on AFUE efficiency rating of Lennox SLP98UH090XV60C and leading competitive units listed in AHRI directory as of March 2015. Efficiency ratings established per test standard ANSI/ASHRAE 103-2007. Based on sound pressure levels during steady-state, high-fire operation of Lennox SL280UHV070V36A and leading competitive units at mid-point temperature rise and minimum external static pressure when set up per Section 4.5.3 of AHRI 260-2001.