Tempstar N80ESU Performance 80 Ultra – Low NOx Gas Furnace

Our ultra-low NOx gas furnace is an easy choice for California residents in the South Coast Air Quality Management District and San Joaquin Air Pollution Control District looking for a heating solution with reduced NOx emissions. This 80% AFUE furnace reliably heats your home while significantly reducing emissions that contribute to smog, acid rain, water quality deterioration and more. Its reliable single-stage operation and 5 speed blower provide even levels of temperature control for your comfort.

  • Ultra-low NOx Model
  • Quiet performance
  • Multi-speed ECM blower motor and single-stage gas valve provide improved levels of even temperature control and comfort
  • Fully insulated cabinet helps keep the heat moving to your ductwork
  • Dual fuel capable with a compatible heat pump and thermostat for energy-saving heating performance
  • Air purifier and humidifier compatible
  • 10-Year Parts Limited Warranty upon timely registration+
  • 20-Year Heat Exchanger Limited Warranty
  • Efficient multi-speed ECM blower motor
  • Variable-speed induced draft combustion motor
  • Single-stage gas valve
  • Natural Gas only, not convertible to Liquid Propane
  • 4 Way Multipoise
  • Stainless steel heat exchanger
  • Reliable direct gas ignition with silicon nitride ignitor
  • High temperature limit control helps prevent overheating
  • Solid, pre-painted steel cabinet with tight fit door latch system
  • Sound-reducing features: fully insulated cabinet with soft mounted blower and inducer motor
  • Compatible thermostat: heat/cool with humidity sensing
  • Heating capacity: 40,000 – 100,000 BTUh
Efficiency RatingEfficiency Rating80% AFUE
EmissionsEmissionsUltra Low NOx Emissions
Heat Exchanger WarrantyHeat Exchanger Warranty20-Year Heat Exchanger Limited Warranty
Parts Warranty10-Year Parts Limited Warranty
Blower MotorBlower MotorMulti-speed ECM blower motor and single-stage gas valve provide improved levels of even temperature control and comfort
Heating capacityHeating capacity40,000 – 100,000 BTUh
OperationOperationSingle-stage operation

For California Residents:
– Meets California’s South Coast Air Quality Management District (SCAQMD) and San Joaquin Valley Air Pollution Control District (SJVAPCD) ultra low NOx emission limit of 14 ng/J.
– If installed within the South Coast Air Quality Management District (SCAQMD) of California, this furnace may be eligible for up to a $500 rebate from the district. See www.cleanairfurnacerebate.com for more information on eligibility and the claiming process.


Service & Estimates:
Monday – Friday 8:00am-6:30pm

Estimates Only:
Saturday 8am-2:00pm

Call Us At: 714 731-9292

We also offer a free estimate for any new equipment or extra parts that you may need to fix your air conditioning unit.

Our contractors specialize in residential AC system replacement, meaning if we are unable to repair your cooling system – or it is not cost-effective for you to have your AC unit fixed – we can install a new one for you without wasting your time or it results in a large bill.

All work is performed by Factory Trained Technicians and comes with our Cool Air Comfort Warranty.

Orange County heating & air conditioning services
Cool Air Tech Heating & Air Orange County

We strive for excellence in everything we do.

We Repair, Service, and Install All Makes and Models.