What Point Grey homeowners should know before converting a heritage character home to a tankless gas water heater, from venting to sizing.
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Installing a tankless gas water heater in a Point Grey character home usually means new venting, often through an exterior wall that may be subject to heritage character retention rules, and a gas line assessment, since these older homes weren't originally plumbed for a tankless unit's higher on-demand draw.
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Point Grey's older homes often have larger basements with plenty of bathrooms upstairs, and multiple household members drawing hot water at once can outpace a standard storage tank, especially in a house with several full bathrooms typical of the neighbourhood's larger properties. A tankless unit's continuous supply appeals here, along with the smaller footprint it frees up in an older, sometimes cramped mechanical space.
It's also a common addition during a broader home renovation, when the mechanical room is already being reorganized and it's a natural point to reconsider the whole hot water setup.
Tankless units vent through an exterior wall, and on some Point Grey properties subject to heritage character retention guidelines, exterior modifications can require more planning than they would on a newer home without those restrictions. It doesn't typically prevent the work, but it's worth discussing venting placement early, before assuming a straightforward exterior wall penetration will be approved without a look at the property's specific heritage status.
A less visible wall, such as one facing a side yard rather than the street-facing facade, is often the more practical choice for the vent termination on a character home, both for keeping the exterior's original appearance intact and for simplifying any approvals that might apply.
| Household pattern | Sizing note |
|---|---|
| Single household, staggered fixture use | Standard tankless unit usually sufficient |
| Larger family, several bathrooms used at once | Higher flow-rate unit worth discussing |
| Home with a basement suite | Dedicated unit for the suite, or a larger shared unit |
Getting sizing right avoids the most common tankless complaint: hot water that weakens noticeably when a second bathroom opens up during a busy morning.
Pre-war Point Grey basements sometimes have lower ceiling heights or older foundation walls that affect where a wall-mounted tankless unit and its venting can practically go. A tech will walk the mechanical space to confirm mounting height, clearances, and the shortest practical venting path before finalizing the install plan, which can shape the layout more than it would in a newer home with a standard basement.
A tankless install runs a ballpark of $3,500 to $7,500, not a quote, with older character homes sometimes landing at the higher end of that range if venting routing is more involved or a gas line upsize is needed to meet the new unit's requirements.
Safety note
If you ever smell gas, hear a hissing sound near the gas line, or notice soot, a yellow flickering burner flame, or a headache-and-nausea pattern that clears when you leave the house, get everyone out of the house first. Do not flip switches or search for the leak yourself. Once outside, call FortisBC at 1-800-663-9911 from a neighbour's phone or your cell before you go back in.
It generally doesn't stop the work, but exterior venting placement may need more planning on properties with heritage character retention guidelines, so it's worth discussing early.
Tankless units draw more gas on demand than the storage tank's burner did, and older gas lines were sized for that lower, steadier tank load.
Yes, it's a common time to do it, since the mechanical room is often already being reorganized as part of the broader renovation.
It depends on how many run simultaneously. A tech can assess actual usage patterns and recommend a properly rated unit or a paired setup if needed.
It can, particularly if combined demand with the main house is high, though a larger shared unit is sometimes sufficient depending on usage patterns.
Similar to any home: periodic descaling and an annual inspection, with isolation valves installed at conversion time to make that easier.
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