New Tempstar Ultra-Low NOx Gas Furnace

Provide Warm Winter Heat with
65 Percent Less NOx Emissions than Current Standards

The new Tempstar® Ultra-Low NOx 80 percent AFUE gas furnace is here and it's built to provide consumer comfort with dramatically reduced NOx emissions.

California's South Coast Air Quality Management District's (SCAQMD) Rule 1111 and San Joaquin Valley Air Pollution Control District's (SJVAPCD) Rule 4905 requires all furnaces installed as of October 2019 to meet 65 percent lower NOx emissions — from 40 to 14 nanograms/joule or less.

With 65 percent less NOx emissions than current low NOx models, the Tempstar Performance Series N80ESU Ultra-Low NOx furnace is a more environmentally-friendly choice designed to meet or exceed the ultra-low NOx emissions requirements for California's SCAQMD Rule 1111 and SJVAPCD Rule 4905.

For more information on California's SCAQMD Rule 1111 ultra-low NOx emissions standards, click here. For more details on California's SJVAPCD Rule 4905 ultra-low NOx emissions requirements, click here.


Tempstar Performance Series N80ESU Ultra-Low NOx Gas Furnace
Let's take a closer look at this Ultra-Low NOx gas furnace and why it's better for the environment, good for customers and just good business.

Better for the Environment


Good for Customers


Just Good Business


It's a more environmentally-friendly choice. It's customer-friendly. It's the new Tempstar Performance Series N80ESU Ultra-Low NOx gas furnace. It provides warm winter heat with 65 percent less NOx emissions than current low NOx models, and it's designed to meet or exceed California's SCAQMD and SJVAPCD ultra-low NOx emissions standards.


1 Timely registration required for 10-year parts limited warranty. Limited warranty period is five years for parts and 20 years for heat exchanger if not registered within 90 days of installation. Jurisdictions where warranty benefits cannot be conditioned on registration will receive the registered limited warranty periods. Please see warranty certificate for further details and restrictions.