Is tankless right
- Good fit: households that hate running out, homes with limited floor space, and owners planning to stay a decade or more.
- Less ideal: homes where several showers and a laundry run at once, unless the unit is sized generously.
- Consider the water: York Region water is moderately tough, and scale is the enemy of a heat exchanger.
We size by flow, not by tank volume. Two showers plus a kitchen tap in winter, when incoming water is cold, needs a large unit.
Gas line and venting
Tankless units draw a lot of gas at full fire, often more than an old half-inch line can deliver. We check the meter size and the length of the run and upgrade the line when needed. Venting is usually PVC or polypropylene through a side wall, kept the code-required distance from openings and the gas meter. A condensate drain is needed for condensing models, and in winter that line must stay above freezing.
Descaling
Plan on flushing the heat exchanger once a year with a mild descaling solution and a small pump. We install isolation valves with service ports on day one so this is a simple job. A softener upstream stretches the interval. Ignoring scale leads to error codes, fluctuating temperatures, and eventually a failed exchanger.
- Close the isolation valves.
- Circulate descaler for about an hour.
- Flush with clean water and clean the inlet screen.
- Reopen and check for codes.
Signs you need this in your house
- Not enough room for a tank
- Long showers running cold
- Planning to vent through a side wall
- Hard water already scaling fixtures
Questions people ask us
Does tankless give instant hot water?
No. It heats instantly, but the water still has to travel the pipe to your tap.
What happens in a power outage?
Tankless units need power to run, so no hot water until it returns.