Tankless water heaters, honestly assessed

Request a callback

Tankless is a good product with oversold marketing. It fits some households perfectly and wastes money in others. The honest version: it makes sense when you run out of hot water regularly, when space matters, or when a household is big enough that the tank size argument never ends.

What does it cost?

Installed tankless runs meaningfully more than a tank swap. What moves the number: gas units often need a bigger supply line, the venting has to be run fresh, and the unit's capacity has to match the household. That's the real cost to weigh against the tank's replacement price and the 15 to 20 year lifespan the better units get.

Is it right for my house?

• Yes, probably, if hot water runs out daily or you're tired of a 50-gallon tank occupying the garage corner
• Maybe not, if the current tank keeps up fine and the math only works on efficiency savings. The savings are real but modest
• Worth asking about if the gas line is already near the spot or you're replumbing anyway

What's the maintenance like?

Descaling, mostly. Units in harder-water areas need it regularly; households on Yakima's soft city water get away with less. Skipping it shortens the unit's life, so factor it into the real cost comparison.

What else should I know?

Tankless units need a certain flow to fire, which can mean a short wait for hot water at a far bathroom. Good installers talk through that, size the unit to your actual demand, and don't just sell you the box.