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 Mariner Mechanical HVAC 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 (270) 556-2062.

Gas Furnace Product Offering

U98MV

U98MV ENDEAVOR LINE ULTRA SERIES GAS FURNACE

View Brochure
Model Family: U98MV
Annual Fuel Utilization Efficiency: 98% AFUE
Energy Star Rated: ENERGY STAR®
Blower Motor: Variable speed blower motor
Gas Valve: Modulating gas valve
Inducer Draft Motor: Constant CFM Motor
Fan Heating Operation: Modulating operation
Factory Warranty Parts: 10 Year Parts Warranty
Heat Exchanger Warranty: Limited Lifetime Warranty
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • EcoNet™ Enabled
  • Ruud-Exclusive PlusOne™ Water Management System
  • Industry-First PlusOne™ Diagnostics
  • Low profile “34 inch” cabinet ideal for space constrained installations.
  • Heat exchanger is removable for improved serviceability. Aluminized steel primary and stainless steel secondary construction.
R951V****U

R951V ENDEAVOR™ LINE CLASSIC® SERIES ULTRA LOW NOX GAS FURNACE

View Brochure
Model Family: R951V****U
Annual Fuel Utilization Efficiency: 95% AFUE
Energy Star Rated: ENERGY STAR®
Blower Motor: Constant CFM Motor
Gas Valve: Single Stage
Inducer Draft Motor:
Fan Heating Operation: Single Speed
Factory Warranty Parts: 10 Year Conditional Parts
Heat Exchanger Warranty: Limited Lifetime Heat Exchanger.
Sound Level: Quieter Operation
Manufacturer's Stated Benefits:
  • EcoNet® Enabled
  • PlusOne Diagnostics – Bluetooth technology aids in quick & easy service
  • PlusOne Ignition System – Direct Spark Ignition (DSI) for reliability & longevity
  • PlusOne Water Management System – Ruud-patented sensor that shuts off the furnace if a blocked drain is detected
  • Certified unit meets 14ng/jNOx emission standard - reducing Nix emissions by 65%
R921T

R921T ENDEAVOR LINE ACHIEVER SERIES GAS FURNACE

View Brochure
Model Family: R921T
Annual Fuel Utilization Efficiency: 92% AFUE
Energy Star Rated: ENERGY STAR® for U.S. South
Blower Motor: Constant torque ECM motor
Gas Valve: Single Stage
Inducer Draft Motor: ECM motor technology
Fan Heating Operation: Single Speed
Factory Warranty Parts: Conditional Parts – 10 Years (registration required)
Heat Exchanger Warranty: Limited Lifetime
Sound Level: Quiet Operation
Manufacturer's Stated Benefits:
  • Direct Spark Ignition for reliability and longevity
  • Water Management System that shuts unit off if a blocked drain is detected
  • Industry-first 7-segment LED for quick and easy service
R801T Low Nox

RUUD ACHIEVER PLUS SERIES ULTRA LOW NOX 80% AFUE-R801T UF/HZ ULN

View Brochure
Model Family: R801T Low Nox
Annual Fuel Utilization Efficiency: Up to 80% AFUE
Energy Star Rated: No
Blower Motor: Single-stage constant torque ECM
Gas Valve: Single stage
Inducer Draft Motor:
Fan Heating Operation: Single speed
Factory Warranty Parts: Conditional Parts - 10 Years (Registration Required)
Heat Exchanger Warranty: 20 Year Heat Exchanger Warranty
Sound Level: Quiet operation
Manufacturer's Stated Benefits:
  • Three way multi poise design
  • Ruud-Exclusive PlusOne™ Ignition System
  • PlusOne™ Diagnostics -- 7 Segment LED all units
  • Insulated blower compartment
  • QR code for quick access to product information from your smart phone or tablet
  • Integrated Control board features dip switches for easy system set up