Traditional Heating & Cooling

Traditional Gas Furnace

  • 80% AFUE Rating
  • Energy Efficient Sealed Combustion
  • Ultra-Low NOx Emission Compliance
  • Heavy-Duty 439 Stainless-Steel Heat Exchanger
  • Stainless-Steel Premix Burner
  • Silicon Nitride Igniter
  • Multi-Speed ECM Motor
  • Thermally Insulated Cabinet
  • Integrated Self-Diagnostics
  • Nest Automation Compatible


Quiet Performance

Engineered Longevity

Energy Efficiency

Copeland® CoreSense Diagnostics


AM11 - CleanFit

Honeywell Pro 9000

Evaporator Coil

Product Summary

The Traditional AMES80-U Gas Furnace is a highly efficient, HERS tested appliance engineered for energy efficiency, quiet operation, and longevity. It is designed to meet California emissions regulatory compliance standards thanks to a clean combustion premix burner that provides the optimal mix of fuel and oxygen. In addition, a multi-speed motor automatically adjusts airflow to not only reduce energy usage, but also improve comfort and enable quiet operation (compared to single-stage motors).

A silicon nitride ignitor also conserves energy, as it replaces a pilot light. The sealed combustion design further improves efficiency because it adds heat directly to indoor air rather than exchange it with outside air. Meanwhile, an insulated cabinet permits air leakage of no more than 2%, which not only reduces blower noise but also improves heat transfer efficiency. The heat exchanger itself is made of 439 stainless steel, formed using wrinkle-bend technology, which improves efficiency and reliability.

The AMES80-U also integrates smart diagnostics via a pre-programmed control board that provides continuous monitoring. Diagnostic codes are stored in the board’s memory, with LED indication of operating conditions so performance issues can be quickly troubleshooted. When minor issues or detected, cost-saving measures can be taken to restore comfort and avoid costlier repairs.

Other Resources

NEXGEN Consumer Brochure AMES80-U


NEXGEN Technical Specs AMES80-U


NEXGEN Lifetime Warranty AMES80-U



  • All jobs are 100% permitted and HERS tested.
  • All-Aluminum Coil
  • SmartFrame Sub-Structure
  • 21" depth for easier attic access
  • Check flowrator for cooling and heat pump applications
  • Direct drive, multi-speed PSC blower motor
  • Cabinet air leakage less than 2.0% at 1.0 inch H₂O when tested in accordance with ASHRAE standard 193

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Learn more from our users

Being the giant idiot that I am, I got a little too excited about install my new Ecobee thermostats that I forgot to turn off the power. Upon disconnecting my wires, I accidentally touched the RC and C wires, causing a short. I knew it was a “OH S4!%” moment when a giant spark startled me. I state…

Bob Frost

Architect of design studio, Los Angeles
John B of Nexgen provided the best customer service experience! He was very professional and extremely knowledgeable. I’m looking forward to joining the Club and taking advantage of the maintenance visits and discounts on services.

John Parker

Economist of the Department of Finance, Arcadia
We had a complete system tune up on our furnace and ductwork by John B who was here on time, efficient, friendly and knew his job. He even wore booties, which I like a lot. He didn’t try to sell us anything either, which we appreciate. But he did explain everything we wanted to know about our…

Lili Thomas

Housewife, Arcadia

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