What a Rinnai i-Series boiler replacement looks like in a Tsawwassen coastal home.
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Quick answer
Replacing an old boiler with a Rinnai i-Series in Tsawwassen involves removing the existing unit, installing coastal-rated sealed-combustion venting, and commissioning under a City of Delta gas permit.
Need a licensed gas fitter for your gas boiler? Call CANRO at (604) 359-1081 — residential natural-gas heating and hot water across Metro Vancouver since 1999.
Many Tsawwassen homes near the beach and ferry terminal started life as seasonal cottages before becoming full-time residences, and their mechanical rooms often still reflect that older, simpler original build. Replacing an aging boiler with a Rinnai i-Series, a condensing wall-hung boiler in solo (heat-only) and combi versions, usually means bringing that mechanical space up to what a sealed-combustion unit needs — proper combustion air, a condensate drain, and new sidewall or roof venting in place of an old chimney.
Given the salt-air exposure this close to the water, the fitter also pays attention to venting hardware and placement choices that will hold up better long-term.
The old unit is disconnected and removed, chimney venting capped where applicable, and new PVC or CPVC venting installed to an exterior wall. The i-Series connects into the hydronic loop, with a condensate line to an approved drain. Commissioning includes gas pressure, combustion, and pressure checks.
In a converted cottage where the mechanical room is smaller than a typical basement utility space, the fitter confirms there's enough combustion air for the new unit before finishing the install.
A boiler replacement requires a gas permit through the City of Delta, pulled by CANRO as part of the job.
Mechanical room condition and whether the old system's piping needs updates are the main cost variables in a converted-cottage install.
| Item | 2026 ballpark |
|---|---|
| Boiler install | $6,500–$14,000+ |
| Boiler replacement | $7,500–$15,000+ |
These are 2026 public-market ballparks for the region, not a quote — CANRO confirms your actual price after a certified technician assesses your property.
Once commissioned, the fitter walks you through the new unit's operation and leaves warranty paperwork to register — coverage is set by the manufacturer, so read your certificate rather than assuming it matches an old system's terms. The removed boiler is hauled away as part of the job.
Rebates through FortisBC, CleanBC, BC Hydro, and the federal government shift over time; the Canada Greener Homes Grant is closed, though a Greener Homes Loan or FortisBC/CleanBC program may apply depending on your equipment, so confirm current eligibility directly rather than assuming. Given Tsawwassen's coastal setting, it's also worth asking about corrosion-resistant venting hardware during the walkthrough, since that's a longer-term maintenance factor here more than in most inland Metro Vancouver neighbourhoods.
A number of the Tsawwassen homes we replace boilers in started as modest seasonal cottages, and the mechanical space often reflects that original, simpler design rather than a purpose-built utility room. Part of the assessment is confirming that space can properly house a new sealed-combustion unit with adequate air supply and a sensible vent route to an exterior wall, and if minor carpentry or framing work is needed to make that happen cleanly, the fitter will explain that scope before the job is booked rather than as a surprise on install day.
Most Tsawwassen replacements are completed within a single day once the assessment has been done and any mechanical room prep work identified, though a converted-cottage retrofit needing more than a straightforward swap can run into a second day. The fitter will give you a specific window before booking rather than a generic estimate.
Safety note
If you ever smell gas, hear a hissing sound near the boiler, or see soot or scorch marks around the burner compartment, leave the house and call FortisBC's emergency line at 1-800-663-9911 from outside before doing anything else. Do not try to relight a condensing boiler yourself if it has locked out on a flame-loss or ignition fault more than once.
The fitter will choose venting hardware and placement with the coastal exposure in mind, since exterior metal components see more wear near the water.
Typically one to two days for a straightforward job.
Yes, and CANRO pulls that as part of the replacement.
No — CANRO is a licensed gas contractor installing and servicing Rinnai equipment.
It can mean the mechanical room needs minor updates for combustion air or access, which the fitter checks during the assessment.
In most cases the existing hydronic loop connects to the new unit, with any needed updates identified beforehand.
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