Denver furnace repair and replacement experts at Brothers Plumbing, Heating & Electric are alerting Colorado homeowners that a new state regulation targeting nitrogen oxide (NOx) emissions will take effect January 1, 2026. The law imposes stricter emission limits on newly installed gas appliances, including furnaces and water heaters, potentially altering product availability, pricing, and installation timelines.
Lynn Tomasek, President of Brothers Plumbing, Heating & Electric, noted that homeowners are already expressing confusion and concern. 'Our goal is to make sure people understand their options so they're not caught off guard when it's time to replace a furnace or water heater,' Tomasek said.
The regulation applies only to new installations starting in 2026; existing systems are not required to be replaced. However, once a system fails or is removed, homeowners must comply with updated standards. Key points include stricter emission limits on new gas appliances, fewer gas appliance options as many traditional models become non-compliant, higher upfront costs for low-NOx equipment, and a potential shift toward electric alternatives like heat pumps. Emergency replacements after the deadline may face limited immediate options.
For furnace replacements, standard-efficiency gas furnaces may be phased out, requiring high-efficiency or ultra-low-NOx models that often cost more and have longer lead times. Cold-climate heat pumps have become a viable alternative, but electrical system upgrades may be necessary when switching from gas. Similarly, traditional gas water heaters may no longer qualify, making condensing gas or heat pump water heaters the default, though with higher upfront costs and different space or venting requirements.
Brothers Plumbing, Heating & Electric is offering in-home consultations to review existing systems, provide honest comparisons between gas and electric options, and guide compliance with the NOx law. The company emphasizes that every home is different and aims to help homeowners understand pros, cons, and long-term costs.
For more information, homeowners can contact Brothers Plumbing, Heating & Electric directly.
