Gas Furnaces

Today's new high efficiency furnaces can save up to 50% in operating costs over a ten-year-old furnace. Many 1990 and earlier model furnaces have Annual Fuel Utilization Efficiency (AFUE) ratings of 65% or less. The minimum AFUE rated furnace that can be sold in the United States today is 80% for the Southeast and Southwest, with 90% being the minimum in the North.

Our current product offering starts at 80% AFUE and goes all the way to a very efficient 98%+ AFUE rating. Depending on your average usage, higher AFUE rated furnaces can significantly reduce your gas bill.

The DOE’s regional breakdown by state is as follows:

  • North – 80% AFUE
  • Southeast – 90% AFUE
  • Southwest - 90% AFUE
DOE Regional SEER Breakdown Map

Let David Services, Inc Help Pick The Right Furnace For Your Home

We offer many furnaces with variable and multi-speed features that can provide enhanced indoor comfort by slowly ramping up to your thermostat setting rather than simply turning on at full speed. This alleviates the "cold air blow" often associated with single speed furnaces, and dramatically reduces system noise. Call us now at (972) 920-5512.

Gas Furnace Product Offering

SLP99V

Variable-Capacity Gas Furnace

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Model Family: SLP99V
Annual Fuel Utilization Efficiency: Up to 99% AFUE
Energy Star Rated: ENERGY STAR®
Blower Motor: High Efficiency Variable Speed
Gas Valve: Modulating gas valve
Inducer Draft Motor:
Fan Heating Operation: Modulating operation
Factory Warranty Parts: 10 year limited warranty
Heat Exchanger Warranty: Lifetime heat exchanger limited warranty
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • SilentComfort™ Technology and Fully Insulated Cabinet
EL296V

Elite® Series EL296V High-Efficiency, Two-Stage Gas Furnace

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Model Family: EL296V
Annual Fuel Utilization Efficiency: 96% AFUE
Energy Star Rated: ENERGY STAR® Qualified
Blower Motor: Variable speed
Gas Valve: Two-stage
Inducer Draft Motor:
Fan Heating Operation: Two-stage
Factory Warranty Parts: 5-Year Limited Warranty on covered components
Heat Exchanger Warranty: Limited Lifetime Warranty on heat exchanger
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • Dual-fuel capability
  • Robust stainless steel secondary heat exchanger
  • iComfort®-enabled technology
  • SilentComfort™ Technology--delivers the ultimate in quiet, consistent heating
  • Special sound-absorbing insulation--further reduces sound for quiet operation
  • Durable steel cabinet--made to last with an attractive, high-qulaity textured paint finish
  • Enhanced humidity control--runs at different speeds to precisely control the flow of heated and cooled air throughout your home
  • Secondary heat exchanger--allows the furnace to achieve high efficiency levels by capturing additional heat
  • Low-speed fan--provides a consistent, continuous flow of warm air
  • Duralok Plus™ heat exchanger--made of patented ArmorTuf™ steel to ensure high reliability and efficiency
  • SureLight® igniter--silicone nitride construction ensures long product life and reliable operation
  • SureLight control board--controls furnace operation to ensure high reliability and efficiency
  • Multi-position models available
EL196E

Elite® Series EL196E Gas Furnace

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Model Family: EL196E
Annual Fuel Utilization Efficiency: 96% AFUE
Energy Star Rated: ENERGY STAR® Qualified
Blower Motor: Power Saver™ Constant Torque
Gas Valve: Single-Stage
Inducer Draft Motor:
Fan Heating Operation: Single-Stage
Factory Warranty Parts: 5-Year Limited Warranty on covered components.
Heat Exchanger Warranty: Limited Lifetime Warranty
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • Fully Insulated Cabinet
  • Sealed Blower Compartment
  • Air Filter and Humidifier Compatible
  • Ultra-Low Continuous Fan
  • SureLight® Silicon Nitride Ignitor
ML180

Merit® Series ML180 Gas Furnace

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Model Family: ML180
Annual Fuel Utilization Efficiency: 80% AFUE
Energy Star Rated: N/A
Blower Motor: Power Saver™ Constant Torque
Gas Valve: Single-Stage
Inducer Draft Motor:
Fan Heating Operation: Single-Stage
Factory Warranty Parts: 5-Year Limited Warranty on covered components
Heat Exchanger Warranty: 20-Year Limited Warranty on heat exchanger
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • Dual-fuel capability
  • Duralok Plus™ heat exchanger--made of high-quality, patented ArmourTuf aluminized steel
  • Hot surface igniter--controls furnace operation to ensure reliable, efficient performance