Continuous hot water
Back-to-back showers and a filled soaker tub without waiting for a tank to recover.
Tankless water heaters
Tankless Water Heater Installation and Service
A properly sized tankless water heater gives you continuous hot water and frees up floor space. Sizing, gas supply and venting decide whether it performs, and that is where we focus.
- Sized to your household
- Gas line and venting checked
- Descaling and annual service
No heat, no hot water or a gas smell? Call any time, day or night.
GAS WATER HEATER · Schematic
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Overview
How a tankless water heater works, and who it suits
A tankless water heater, also called an on-demand water heater, fires a powerful gas burner only when a tap opens. Water passes through a heat exchanger and comes out hot for as long as the tap runs. There is no stored tank to keep warm overnight, which reduces standby losses and leaves space in a crowded utility room.
The trade-off is that a tankless unit has a flow limit. It can only heat a certain number of litres per minute, and that number drops in winter when incoming water is colder. Metro Vancouver mains water can drop well below summer temperatures in January, so a unit that handles two showers in July may struggle in February if it was sized too small. We size for your coldest month and the number of fixtures you run at once.
Choose the service you need
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Why homeowners choose tankless
Tankless is not right for every house, but it shines in the right one.
Space saved
A wall-mounted unit frees the floor space a 40 or 50 gallon tank used to take.
Lower standby losses
Condensing tankless units do not keep water hot when nobody is using it.
Long service life
With regular descaling and service, a tankless unit commonly outlasts a standard tank.
Precise temperature
Digital controls hold a set outlet temperature, helpful for families with young children.
Combi options
Some homes pair hot water and space heating in one combi boiler, a related approach we also install.
Included
What decides if tankless will work in your home
- Peak demand: how many showers and fixtures run together
- Gas meter and gas line size to feed a large burner
- A practical venting route for intake and exhaust
- A condensate drain location for condensing models
- Electrical outlet for controls and ignition
- Recirculation needs for long pipe runs
- Water pressure and a working pressure reducing valve
How it works
Our tankless process
- 1
Measure your demand
We count fixtures, ask about habits and calculate flow at winter inlet temperatures.
- 2
Check gas and venting
We confirm the gas supply can handle the load and plan a vent route that meets code.
- 3
Install and commission
The unit, isolation valves and condensate line are installed, then tested at full fire.
- 4
Maintain every year
Flushing the heat exchanger and cleaning the inlet filter keep efficiency and flow up.
Why Able Pro for tankless water heaters
Gas specialists
We work with gas burners and venting daily, which is the part tankless installs most often get wrong.
Honest fit check
If a tank or heat pump water heater suits you better, we will say so.
Service after install
We maintain and repair the units we install, as well as most other brands.
Book your way
Call (236) 222-2222 or book online to start with a sizing visit.
Questions homeowners ask us
Still unsure? Call (236) 222-2222 and talk it through with us.
Will a tankless water heater lower my gas bill?
It can, because there is no standby loss from keeping a tank hot. The size of the saving depends on how much hot water you use and the efficiency of the old heater. Households that use a lot of hot water sometimes use more because the supply never runs out.
Why do I get a burst of cold water with tankless?
This is often called a cold water sandwich. It happens when hot water in the pipe is used, the unit restarts and briefly delivers cooler water. A recirculation setup or a small buffer tank reduces it.
Does a tankless unit need maintenance if our water is soft?
Yes. Metro Vancouver water is soft, so scale is less of a problem, but the inlet screen still collects debris and the heat exchanger and burner should be checked yearly. Annual service also confirms venting and condensate drainage are working.
Can I switch from a tank to tankless?
Usually, but it often requires a larger gas line and a new vent, because tankless burners draw much more gas than a tank. We assess this before quoting so you know the full scope.
What happens during a power outage?
Tankless water heaters need electricity for controls and ignition, so they will not heat water during an outage. A tank with a standing pilot will. Some owners add a small backup power source for the unit.
Book your visit
Find out if tankless fits your home
Call (236) 222-2222 or book online for a tankless sizing and installation visit.
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