The variables that actually move a Rinnai i-Series installation quote, with 2026 public-market ballparks for budgeting.
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Quick answer
Installing a Rinnai i-Series condensing boiler in Metro Vancouver runs roughly $6,500–$14,000+ for the boiler install itself, or $7,500–$15,000+ for a full replacement that includes removing an old unit, as a 2026 public-market ballpark, not a quote. Venting, gas line sizing, and mechanical room access are what actually move the number within that range.
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An install on a home that's never had a boiler — new construction, or a conversion from electric or forced-air heat — means running gas piping, venting, and the hydronic distribution from scratch, which sits at the higher end of the range. A replacement, where an existing boiler is being swapped for a new i-Series, can often reuse the existing gas line and hydronic piping, though the venting almost always needs at least partial updating because the i-Series is a condensing unit and the venting requirements differ from an older atmospheric boiler.
Getting an accurate number means having a technician actually inside the mechanical room and outside at the proposed vent termination point before a quote is written — a phone estimate without either of those looks is a guess, not a quote, and it's the reason final numbers can drift so far from an initial ballpark given sight unseen.
A bigger i-Series isn't automatically better. Condensing boilers run most efficiently when they're sized close to the home's actual heat loss and can modulate down for milder days rather than short-cycling a unit that's oversized for the load. A proper heat-loss calculation — based on the home's insulation, window area, and exposure, not just square footage — is what a competent installer uses to size the unit, and it's worth asking for that as part of the quote rather than accepting a size picked off the old boiler's nameplate.
| Scope | 2026 ballpark (CAD) |
|---|---|
| Boiler install | $6,500–$14,000+ |
| Full boiler replacement (removal, venting, piping) | $7,500–$15,000+ |
| Combi boiler installed | $9,000–$16,000 |
| Gas permit | $75–$200 |
Every figure above is a public-market ballpark for 2026, not a quote — final pricing depends on the specifics above and is confirmed by CANRO's certified technicians after a short in-home assessment. Beware of any quote given without someone actually looking at the venting run and gas line first, since that's usually where the real number diverges from a generic estimate.
It's also worth budgeting for what happens after install. Annual service on a condensing unit like the i-Series runs $250–$450 as a 2026 ballpark, and keeping that up is what protects the investment in the new equipment — a boiler that's never serviced tends to develop the kind of compounding issues that shorten its useful life well before it should need replacing again.
Safety note
If you smell gas near the boiler, hear a hissing sound at a fitting, or a carbon monoxide alarm goes off, get everyone out of the house first and call from outside. Do not flip switches, light anything, or go looking for the source yourself. FortisBC's emergency line is 1-800-663-9911 and they will tell you when it's safe to go back in; a licensed gas fitter should confirm the fix before the i-Series is fired back up.
It's generally higher within the range because of the added domestic hot-water piping and controls, but the gap depends on the specific home's plumbing layout.
Ask specifically — most reputable installers, including CANRO, handle the municipal gas permit as part of the job, but confirm it's included on your written quote.
Usually not if the old boiler was a non-condensing atmospheric unit — the i-Series needs venting rated for condensing appliances, so reusing incompatible venting isn't code-compliant.
It depends heavily on venting and access complexity, which is why CANRO gives a real timeline after seeing the site rather than a generic number upfront.
Programs through FortisBC, CleanBC, and the federal government change over time — the Canada Greener Homes Grant is closed, but other programs may apply, so confirm current eligibility directly with the program.
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