Combi boilers, which handle heat and hot water in one unit, typically cost $9,000 to $16,000 installed in Big Bend homes.
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Quick answer
An installed combi boiler in Big Bend, the section of south Burnaby along the Fraser River, generally runs $9,000 to $16,000, since the unit handles both space heating and on-demand hot water rather than pairing with a separate storage tank. That's a 2026 market ballpark, not a quote — CANRO's certified gas technicians price the job exactly after reviewing the home's setup.
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A combi boiler combines a heating boiler and a tankless-style domestic hot water heater into a single appliance, which means more internal components than a heat-only boiler and installation work that touches both the heating loop and the domestic water lines. That's the core reason combi units land in the $9,000–$16,000 range in Big Bend rather than the lower boiler-only band — the equipment itself and the plumbing scope are both bigger.
For a Big Bend home currently running a separate boiler and gas water heater, switching to a combi means the old tank's space — often valuable in a crawlspace-access home with limited mechanical room — gets freed up, but the domestic hot water plumbing has to be rerouted to the new unit, which adds labour on top of the boiler swap itself.
| Scenario | What affects the price |
|---|---|
| Replacing an existing combi | Lower end — venting and hot water lines already in place |
| Converting from boiler plus tank | Mid to higher end — hot water lines rerouted |
| New system in a crawlspace-access home | Higher end — tighter working conditions add labour |
A combi unit suits households with limited mechanical room space and moderate hot water demand — a common situation in Big Bend's older homes where a crawlspace or small utility area leaves little room for both a boiler and a separate tank. Larger households running multiple showers or fixtures at once should confirm the unit's flow rate can actually keep pace, since an undersized combi shows its limits right when demand peaks, usually mornings and early evenings.
A combi boiler installation is permitted through the City of Burnaby, covering the gas, venting, and domestic water connections, and CANRO's technicians manage that permit as part of the job. Because the work involves gas piping and combustion venting, it must be performed by a Technical Safety BC licensed gas fitter. Planning the conversion before the heating season gives more time to sort out plumbing rerouting without rushing, particularly in a crawlspace-access home where working room is already limited.
It's also worth discussing insulation and freeze protection for the new domestic water lines if any of the rerouted piping has to run near an exterior wall or through an unheated crawlspace section, since a combi unit's hot water side is just as vulnerable to a cold-snap freeze as any other exposed line in a Big Bend home. Your technician can flag this during the assessment rather than leaving it as an afterthought once the piping is already in place.
Safety note
If you smell gas near the mechanical room, hear hissing, or a carbon monoxide alarm sounds, leave the home first and call FortisBC from outside at 1-800-663-9911. Combi boiler installation involves gas piping and venting and must be performed by a Technical Safety BC licensed gas fitter; CANRO holds gas licence LGA0043870 and boiler licence LBP0046450.
Typically $9,000 to $16,000, reflecting that the unit handles both space heating and domestic hot water. CANRO confirms the exact price after reviewing the setup.
It combines heating and on-demand hot water in one unit, with more internal components and often more plumbing work during installation.
Yes, but it involves rerouting domestic hot water piping to the new combi unit, which adds labour beyond a straight boiler swap.
Often yes, since it frees up the space a separate tank would take, though tighter working conditions can add some labour to the installation.
It depends on the unit's flow rate versus simultaneous fixture use — your technician should confirm sizing against actual household demand.
Yes, through the City of Burnaby, covering gas, venting, and plumbing connections. CANRO handles that as part of the installation.
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