What tankless water heater installation involves in Terra Nova, Richmond, from gas line capacity to venting through slab-built homes.
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Quick answer
Installing a tankless water heater in a Terra Nova home involves confirming the gas line can supply the unit's higher draw, routing new sidewall venting through an exterior wall, and finding a mounting location with proper access — often a garage or a utility closet in newer construction rather than a traditional basement mechanical room. Crawlspace or slab-on-grade foundations common in this reclaimed-floodplain neighbourhood mean the installer needs to plan gas and vent routing a little differently than in a home with a full basement.
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Much of Terra Nova was developed from the 1990s onward, and many of the homes and townhomes here were built with slab-on-grade or crawlspace foundations rather than full basements, given the high water table on this reclaimed section of Richmond near the Fraser River's mouth. That construction style often means the water heater lives in a garage or a small interior utility closet rather than a basement mechanical room, and a wall-mounted tankless unit tends to fit that kind of space far better than a bulky storage tank.
Townhome owners in particular often choose tankless here, since garage-mounted units free up storage space that's already at a premium in a townhome layout, and continuous hot water is a genuine benefit for households sharing bathrooms in a multi-level unit.
In a townhome complex, venting placement also has to account for exterior appearance guidelines and any clearance requirements from neighbouring units' windows or air intakes — a licensed installer will factor this into the plan rather than assuming a single-family install approach applies directly.
| Household situation | Sizing consideration |
|---|---|
| Townhome, 1–2 bathrooms | Standard single-unit tankless typically adequate |
| Larger detached home, 3+ bathrooms | Larger-capacity unit or two units may be needed |
| Winter groundwater temperature | Lowers effective output — size for coldest-month incoming water, not summer conditions |
As with anywhere in Metro Vancouver, incoming water is colder in winter than summer, and a unit sized only for warm-weather performance will fall short exactly when demand and discomfort are highest. A licensed installer sizes conservatively for winter groundwater temperature.
Ballpark, not a quote: a tankless installation requiring new venting and gas line work generally falls in the $3,500–$7,500 range, with straightforward swaps where infrastructure is already adequate landing toward the lower end. A written quote following an in-home assessment is the only reliable figure.
The work requires a permit and must be completed by a Technical Safety BC licensed gas fitter. CANRO holds gas licence LGA0043870. In a townhome, it's worth confirming with the property manager or governing council whether any exterior venting work needs sign-off before installation begins, since that can affect scheduling even though the gas work itself is governed by the provincial permit process.
Safety note
If you smell gas or suspect a carbon monoxide problem, leave the home immediately and call FortisBC at 1-800-663-9911 from outside before doing anything else. Never try to relight a pilot or reset a gas appliance yourself if you smell gas.
Yes, garage installation is common, particularly in townhomes, as long as the unit is protected from freezing temperatures and the venting and gas line can be routed appropriately from that location.
Interior plumbing and appliance changes are usually within a homeowner's own unit, but any exterior venting work may need notification or approval from the property's governing rules depending on your complex — it's worth checking before scheduling.
Incoming groundwater is colder in winter, which reduces how much a tankless unit can raise the temperature at a given flow rate. A properly sized unit accounts for this, but an undersized one will show it clearly in cold months.
A straightforward swap can often be done in a day, while installations needing new venting routed through a shared or exterior wall may take longer due to building coordination and permit inspection timing.
Often yes, since a wall-mounted unit frees up storage space that's typically limited in a townhome, and it can be sized appropriately for one to two bathrooms without oversizing the system.
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