Tank vs. Tankless: Which Water Heater Is Right for Your Home?

It's one of the most common questions we get on a water heater replacement: should you stick with a conventional tank, or switch to tankless? Both are reliable when properly installed and maintained — the right choice comes down to your household.

A conventional tank heats and stores a set volume of water, so it costs less upfront and is simple to install and service. The trade-off is standby heat loss — the tank keeps water hot around the clock, whether you're using it or not — and once you've used the stored hot water, you'll need to wait for it to reheat.

A tankless unit heats water on demand, so there's no storage tank losing heat in the background and, in theory, no running out of hot water mid-shower. It also takes up a fraction of the space of a tank. The trade-offs are a higher upfront cost and, in some cases, a need to upgrade gas line or electrical service to support it.

For a smaller household with modest hot-water demand, a tank is often the more cost-effective choice. For larger households, or anyone who's tired of running out of hot water back-to-back, tankless tends to pay for itself in convenience even before the energy savings.

Either way, sizing matters more than the tank-vs-tankless decision itself — an undersized unit of either type will leave you disappointed. We size every installation to your household's actual usage, not just a rule of thumb.