Both are good choices with different tradeoffs. Tank water heaters have lower upfront cost, simpler maintenance, and can simultaneously supply multiple fixtures. Tankless heaters eliminate standby heat loss, provide unlimited hot water, but cost more upfront and require adequate gas supply (150,000–200,000 BTU) and annual descaling due to Utah’s hard water. Utah’s altitude requires gas appliance deration — a 150,000 BTU tankless at sea level performs at roughly 120,000–125,000 BTU in Salt Lake City. Hybrid heat pump water heaters offer the best long-term energy efficiency but need unconditioned or semi-conditioned space. RainFire Builders presents all three options with sizing and cost data on every water heater scope.