Definition
Three common water heater types — storage tank (lowest upfront), tankless on-demand (long life), hybrid heat-pump (highest efficiency, rebates).
How do the three types differ in everyday life?
A storage tank keeps 40–50 gallons hot around the clock — simple, cheapest upfront, 8–10 year typical life. Tankless heats water only as it flows, so hot water never 'runs out,' and the unit commonly lasts 15–20 years, but it needs the right gas or electrical capacity. A heat pump water heater is a tank that heats with a small heat pump on top, cutting water-heating electricity use by well over half.
Which type earns the rebates?
Heat pump water heaters. They are the efficiency leader, so both utility programs and the income-qualified WA HEAR program put real money toward them. They want a spot with some air volume (garage, basement, utility room) and a condensate drain — placement is the main thing a quote visit checks.
How do you actually choose between the three?
Start with how your household uses hot water. Back-to-back showers and a big soaking tub favor tankless's endless supply; a stable family routine is fine on a right-sized tank; and if the water heater lives in a garage or basement, the heat pump model's efficiency usually wins the ten-year math. Fuel, venting, and electrical capacity decide the rest — which is exactly what a quote visit checks.
In the Puget Sound
In Puget Sound garages and basements, heat pump water heaters run happily year-round — our mild air temperatures are well inside their efficient operating range.
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