When it is time to replace a water heater, most homeowners choose between a traditional tank and a tankless unit. Both do the job well. The right choice depends on your budget, your household and the space you have.
How each one works
A tank water heater keeps a supply of hot water ready, usually 40 to 50 gallons, and reheats it as you use it. A tankless water heater heats water only when you turn on a tap, so it never runs out but it can only supply so much at once.
Upfront cost
Tank units cost less to buy and install, especially when they replace an existing tank. Tankless units cost more, and older homes sometimes need a larger gas line or new venting to support them.
Running cost
A tank loses some heat while it sits waiting, which adds to your energy bill. A tankless unit avoids that loss, so it usually costs less to operate over time.
Lifespan and space
Tank water heaters typically last about 8 to 12 years. Tankless units often last much longer with regular maintenance, and they mount on a wall, which frees up floor space.
Which one fits your home
- Choose a tank if you want the lowest upfront cost or a simple like for like replacement.
- Choose tankless if you plan to stay in your home for years, want lower running costs or need the extra space.
We size every water heater to your household, explain the costs of both options and quote a flat price before any work starts.
