Ultra-low-NOx eligibility
For a natural-gas unit, check the actual installation address with Utah DEQ. The affected nonattainment boundaries do not line up neatly with city, county, or ZIP boundaries, so a city-name assumption is not enough.
Check Utah DEQ guidance and its address tool.
Water hardness and maintenance
Identify the serving water system, read its current water-quality report, and test at the property when sizing treatment or setting a maintenance plan. One city can have more than one water source, and the water at the house is what matters.
Example: Salt Lake City official water-quality reports.
Permit and inspection responsibility
Verify the parcel authority, whether the actual scope requires a permit, who applies, the current fee, which inspections are required, and who closes the permit. A fee shown by one authority is not a Wasatch Front price.
Salt Lake City permit portal · Greater Salt Lake MSD guidance.
Altitude and model setup
Use the installation elevation and the exact manufacturer manual to verify input adjustment, combustion setup, venting, controls, startup, and warranty requirements. The quote should name the equipment change or extra work.
Find the model-specific manufacturer manual.
Heat-pump water heaters
The quote should identify the model, hot-water delivery, installation space and air path, condensate route, electrical requirements, noise and location plan, drain protection, permit responsibility, startup, and warranty.
Start with ENERGY STAR product guidance.
Tank-to-tankless conversion
Separate the equipment from gas capacity and pipe length, vent and termination, combustion air, condensate disposal, electrical needs, isolation valves, water treatment, recirculation, removal, permits, finish work, startup, and maintenance.
Review the ENERGY STAR tankless system overview.
Rebates and incentives
Check the official program at the time of purchase. Confirm service territory, eligible model, installation date, required contractor or forms, submission deadline, and whether the incentive is paid to the customer or shown in the quote.
Check current ThermWise programs | check current ENERGY STAR resources.