Tank vs Tankless Water Heater Cost Calculator

Equipment plus labour, venting, permit and any code upgrades. A gas tank swap usually includes reusing the existing flue in most cases, which is why it is often cheaper than it looks.

The second tank usually costs less than the first because the venting and connections are already there, but not free.

Storage tanks commonly last 8-12 years. Hard water and a neglected anode rod shorten that.

Bring this over from the energy cost calculator so both options are priced on the same usage and the same fuel price.

Mostly zero for a tank. Enter anything you actually spend on flushing or anode rods.

Includes the unit, venting, gas line or circuit changes, and any upgrades the installation forces.

18-20 years is the usual expectation for a well-maintained tankless unit; scale and poor water chemistry cut it short.

Tankless units avoid standby loss, so this runs below the tank figure on the same usage. Bring it from the energy cost calculator rather than guessing a percentage.

Descaling is the recurring item, and it matters in hard water. Hired-out descaling commonly runs 150-300 dollars a year; doing it yourself costs the vinegar and an afternoon. Leave 0 only if you genuinely never service it.