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House passes air-quality bill requiring ultra-low NOx replacement water heaters
Summary
The House approved HB 250 to require ultra-low NOx replacement water heaters sold in Utah, a sponsor said would cut NOx emissions from each unit about 75%, reduce area NOx by roughly 35% in places like Salt Lake County and help meet state implementation-plan obligations; the bill passed 39–25.
Representative Bridal introduced HB 250, saying the measure would require ultra‑low NOx replacement water heaters sold in Utah beginning after the implementation date and that each unit would reduce nitrogen‑oxide (NOx) emissions by about 75% compared with current models.
Bridal said the statewide impact would be meaningful for localized air-shed problems, estimating roughly a 35% area NOx reduction and a 4% reduction in the state NOx inventory if all water heaters in Salt Lake County were replaced. He said the change would help avoid rewriting Utah’s state implementation plan (SIP) and reduce the need for costlier industry restrictions.
Opponents focused on cost and geographic fairness. Representative Peterson raised fiscal concerns, noting the sponsor’s $50–$150 extra per unit estimate and extrapolating that replacement costs for Salt Lake County households over the next decade could amount to tens of millions of dollars. Representative Oda and others asked about supply and contractor access; Bridal replied he had identified at least four established manufacturers and that supply was not expected to be a long‑term constraint, while acknowledging short‑term distribution adjustments could affect price.
Members also questioned how the bill would interact with the International Building Code and local permitting. Bridal said the bill would not amend the building code and was targeted at replacement water heaters rather than new‑construction installations; it also gives the state Air Quality Board authority to determine timing and implementation details.
The bill’s sponsor framed the policy as a relatively low‑cost, broad‑based intervention to reduce NOx emissions from area sources — household appliances — and argued it would be cheaper per ton of NOx reduced than many industrial controls. Representative Ward and other supporters highlighted public‑health benefits, including reduced asthma and respiratory impacts during inversions.
The House voted to pass HB 250, recorded in the transcript as 39 yea and 25 nay; the bill will be transmitted to the Senate for further consideration.
Ending: The House passed HB 250 and referred it to the Senate; additional rule‑making by the Air Quality Board will determine specifics for phased implementation and testing with Utah natural‑gas systems.
