Colorado Low-NOx Emissions Act
COLORADO’S NEW 2026 FURNACE REGULATIONS:
What Homeowners Need to Know
KEY THINGS YOU NEED TO KNOW:
Beginning in 2026, all new furnaces sold in Colorado must meet low NOx (low-emissions) standards, which means only higher-efficiency models will be available. NOx refers to nitrogen oxide emissions produced during combustion. Low-NOx furnaces simply burn cleaner without any noticeable difference in how your home heats.
These new models will come at a higher equipment and installation cost, and pricing is expected to rise significantly as demand shifts statewide.
Contractors can still install standard 80% furnaces as long as they were manufactured on or before December 31, 2025.
Suppliers are stocking up now, but no one knows how long that inventory will last once the new rules take effect – it could be a month, six months, or longer.
If you have an older furnace, now is the time to plan for replacement while current pricing and equipment options are still available.
Do you have to replace your furnace? No – these regulations do not affect furnaces already installed in homes. They apply only to new equipment sold and installed after 2025.
But if your furnace is showing signs of age or you’ve been considering an upgrade, now is the best time to explore your options while current pricing and inventory are still available – and to take advantage of the special offer featured below!
As these changes approach, planning ahead can help you avoid higher costs and limited inventory. If you have questions or want an honest, no pressure opinion about your current system, we’re always here to help. Financing available. Call or text us at 719-203-9222.