Published 2026-10-06
Tank heaters cost less up front; tankless units save space and can run more efficiently. The right choice depends on household size, gas supply, venting, and water hardness. Here is how to compare them honestly.
Both systems heat water well. The right one depends on the home, not the marketing.
Lower purchase and installation cost, simple venting, and easy replacement of a like-for-like unit. Downsides: standby heat loss, a fixed supply of hot water, and a tank that eventually leaks.
Endless hot water on demand, smaller footprint, and often better efficiency. Downsides: higher installation cost, possible gas-line or venting upgrades, and sensitivity to hard water scale without maintenance.
