Water Heater Type Selector: Match the Type to Your Home

Tell the tool your top priority and it points to the water-heater type that fits — then read the full labeled matrix of UEF, lifespan, installed band and best use across every option.

Typical published planning values — NOT a certified spec or professional advice. Efficiency, sizing and life vary by unit and installation; confirm on the EnergyGuide label and the manufacturer’s instructions. Water-heater installation, gas, venting, combustion, the temperature-&-pressure relief valve, and the scald / Legionella tradeoff of a temperature setting are a licensed plumber / gas fitter, manufacturer-instruction and local-code matter — not engineered here.

1 Enter your numbers

The chart is a planning guide — the EnergyGuide label and a local plumber have the final say.
Your result
Recommended typeGas tank
WhyLow upfront where natural gas is available
Confirm onthe EnergyGuide label & a local plumber

Match the type to your fuel, space, budget and hot-water demand — for your priority, Gas tank. The chart is a planning guide; the EnergyGuide label and a local plumber win.

Choosing a water heater is really a matching problem: line up your fuel, space, budget and hot-water demand against what each type does best. This selector cuts through it — pick the priority you care about most and it names the type that leads, then the matrix below lets you sanity-check every option on the same footing.

The pattern is consistent. Where natural gas is available and budget is tight, a gas tank is the low-upfront default. For the lowest running cost on electricity, a heat pump / hybrid wins on efficiency. For endless hot water and long life, a gas tankless leads. For the simplest, cheapest install, an electric tank. The right answer is whichever priority is yours — and it is brand-neutral: this compares types, it does not sell one.

Formula

A lookup, not a calculation — the tool maps your priority to the type that leads on it:

  • Low upfront cost (gas available)Gas tank.
  • Lowest running costHeat pump / hybrid (UEF ~3.5).
  • Endless hot waterGas tankless (flow within its GPM, long life).
  • Simplest installationElectric tank (cheapest unit, no venting or gas line).

Cross-check the recommendation against the labeled matrix, then price your own quote in the cost-by-type tool.

Worked example

Scenario: a homeowner on all-electric service who wants the smallest possible utility bill. Priority = lowest running cost. The selector returns Heat pump / hybrid — at a labeled UEF near 3.5 it is the efficiency leader, provided the install has warm space and clearance. Change the priority to simplest installation and it returns Electric tank instead: the cheapest unit with the easiest install, at the cost of a higher running bill. The matrix below shows why — compare their UEF, lifespan and installed bands side by side.

What to weigh before you decide

Fuel first. If you have cheap natural gas, a gas tank or tankless is usually in the running; if you are all-electric, a heat pump is the efficiency play. Your available fuel narrows the field before anything else.

Space and venting. A tankless frees floor space but needs venting; a heat pump needs warm ambient air and clearance; an atmospheric gas tank needs a proper flue. Fit the type to the room.

Demand. Size the winner for your peak hour (a tank by FHR, a tankless by GPM) — the right type in the wrong size still leaves you short.

Reference table

TypeTypical UEFLifespan (yr)Installed band (labeled)Best for
Gas storage tank~0.628–12$900–$2,500Fast recovery, lower running cost where gas is cheap
Electric storage tank~0.9210–15$800–$2,000Cheapest unit & simplest install; higher running cost
Gas tankless~0.9018–20$1,800–$4,500Endless flow within its GPM; high efficiency, higher upfront
Electric tankless~0.9818–20$800–$2,500Point-of-use or low-demand; heavy electrical draw
Heat-pump / hybrid~3.5010–15$1,500–$4,000Efficiency champion (UEF ~3.5); needs warm space & clearance
Condensing gas~0.9010–15Highest gas efficiency, PVC venting, higher upfront

UEF, lifespan and installed bands are labeled published planning snapshots — the EnergyGuide label and a local plumber win. Enter your own quoted price in the cost-by-type tool.

Frequently asked questions

What type of water heater is best?
There is no single best — it is the one that matches your priority. Gas tank for low upfront cost where gas is cheap; heat pump for the lowest running cost on electricity; gas tankless for endless hot water and long life; electric tank for the simplest install. Pick your priority and the selector points the way.
Which water heater is cheapest to run?
On electricity, a heat-pump / hybrid, thanks to a UEF around 3.5. Where natural gas is cheap, a gas unit is often close. Run the operating-cost tool with your own rates to confirm.
Which is cheapest to buy and install?
An electric storage tank — the lowest unit price and the simplest install (a circuit, no venting or gas line). A gas tank is next where a gas line and flue already exist.
Does this recommend a brand?
No. It is brand-neutral and compares types, not models. Use the labeled matrix to shortlist a type, confirm on the EnergyGuide label, and price a specific unit with your own quote in the cost-by-type tool.