Tankless Water Heater
A tankless water heater heats water directly as it flows through the unit, on demand, instead of storing and continuously reheating a tank of hot water. It takes up less space than a tank and can supply hot water continuously, but its output is limited by flow rate rather than tank size.
Why this matters to you
Tankless units can end the 'ran out of hot water' problem from back-to-back showers, but sizing matters — an undersized tankless unit for a larger household can still struggle if multiple fixtures run hot water at once.
Frequently asked questions
Is a tankless water heater cheaper to run than a tank?
It can lower standby energy loss since it's not continuously reheating stored water, but the real-world savings depend on your household's hot water usage pattern, the unit's efficiency, and your fuel source — ask for a realistic comparison based on your actual usage rather than a generic percentage claim.
Can I just swap a tank for a tankless unit in the same spot?
Not always — tankless units often need different venting, gas line sizing, or electrical capacity than the tank they're replacing, so a straight swap isn't guaranteed. A proper assessment before quoting avoids surprise costs mid-installation.
Halton Hills note
Larger households or homes with a finished basement or in-law suite in the Georgetown area often push a standard tank's recovery limits faster than typical marketing examples suggest — worth discussing your actual household size and usage pattern before choosing a size.
Have questions about equipment types for your home?