Replacing a water heater is a good moment to ask whether a tank or a tankless unit suits your household better. Here is a plain comparison to help you decide.

Tank water heaters

  • Store and keep a supply of hot water ready.
  • Usually lower upfront cost.
  • Take up floor space and can run out of hot water during heavy use.

Tankless water heaters

  • Heat water on demand, so you are not heating a stored tank all day.
  • Compact and often wall-mounted.
  • Typically cost more upfront, and may need venting or gas supply upgrades depending on your home.

What to think about

  • Household size and hot water use. How many people shower, run the dishwasher or do laundry at the same time?
  • Space. Is floor space limited in your utility room?
  • Budget. Consider both the purchase and installation.
  • Existing connections. Gas, venting and plumbing can affect what is practical.

There is no single right answer. We install, replace and repair both tank and tankless water heaters, and we will explain the options for your home before any work begins.

Lifespan and maintenance

Tank water heaters often last around 8 to 12 years. Tankless units can last longer when they are maintained, and in areas with hard water they may need periodic descaling. In both cases, regular servicing helps catch problems early.

Questions to ask before you choose

  • How much hot water does my household use at the same time?
  • Do I have the space and connections for the type I want?
  • What will installation involve, including venting and gas supply?
  • What is my budget for both the unit and installation?

Need help?

Fast Heating and Cooling Systems Inc. serves Milton, the GTA and beyond, 24/7. Call 289-335-1800 or request a quote.