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Burnaby, BC

Tankless descaling and flushing, the maintenance manufacturers make a warranty condition

Annual flushing of gas tankless water heaters in Metro Vancouver: isolation-valve flush of the heat exchanger, inlet-filter cleaning, condensate trap service, combustion and venting check, and the manufacturer's service reminder reset.

Gas tankless
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Quoted after assessment

Pricing for this service is confirmed in writing after CANRO assesses the equipment and property.

On-site service in Burnaby

On-site service is currently offered across Metro Vancouver: Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Delta, Langley, Port Moody, Port Coquitlam, Maple Ridge, Pitt Meadows, White Rock, Tsawwassen; plus Anmore, Belcarra, Lions Bay, Bowen Island, Abbotsford with travel or ferry arrangements confirmed by phone. Everything else on this site is reference information you can use anywhere in Canada.

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Tankless Descaling for Burnaby homes and buildings

Every tankless manufacturer specifies periodic flushing of the heat exchanger, and most exclude lime damage from warranty. Rinnai's manual states that failure to flush will damage the heat exchanger and recommends at least annual flushing, more often with hard water. Metro Vancouver's water is very soft, around 2 to 25 mg/L hardness, which slows scale but does not remove the requirement or the value of checking the filter, trap and combustion at the same time.

A descaling visit circulates a manufacturer-approved solution through the heat exchanger via the isolation valves, cleans the cold-inlet screen, empties and checks the condensate trap and neutralizer, verifies combustion and venting, and resets the service reminder on units that have one. If the unit was installed without isolation valves, they are fitted first.

Gas and plumbing permits. The City of Burnaby requires a Gas Permit to install, modify or upgrade any part of a gas system in single and duplex dwellings, and a plumbing permit for plumbing fixtures, which its fee schedule lists as including a water heater. Permits can be applied for through the City's My Permits Portal. Source

Water hardness. Metro Vancouver's 2024 water quality report gives treated-water hardness of about 22 mg/L as CaCO3 from the Capilano and Seymour sources and about 2.5 mg/L from Coquitlam, which is very soft water. Source

Tankless Descaling in Burnaby: what to expect

Annual descaling matters in Burnaby even on the soft regional water: Rinnai's manual recommends at least yearly flushing and warns that failure to flush damages the heat exchanger, and Metro Vancouver's slower scale simply makes the year a gentler test, not a skipped one.

A Burnaby descaling visit pumps a manufacturer-approved solution through the heat exchanger via the isolation valves, cleans the cold-inlet screen, services the condensate trap and neutralizer, verifies combustion and venting and resets the service reminder. Units installed without isolation valves get them fitted first, so the annual job stays quick.

For a city full of townhouse and laneway units running year-round on a wide winter temperature rise, the annual flush is the maintenance that keeps a unit at full capacity through the season that pushes it hardest, and it is a short truck roll from CANRO's Burnaby base.

What's included

  • Heat-exchanger flush through isolation valves with a manufacturer-approved solution
  • Inlet filter and flow-sensor screen cleaning
  • Condensate trap and neutralizer service
  • Combustion, gas-pressure and venting check; service reminder reset

Not included

  • Repairs identified during the visit (quoted separately)
  • Water treatment or softening equipment

Process

How it works

  1. 01

    Book a visit

    Call or request a visit with the brand and model. Pricing is confirmed by phone; WaterHeating.ca does not publish a descaling price.

  2. 02

    Flush and clean

    Isolation valves, pump and solution circulate through the heat exchanger for the manufacturer's recommended time.

  3. 03

    Check

    Filter, trap, combustion and venting checked; settings verified.

  4. 04

    Report

    You receive a note of what was found and when the next flush is due.

Why CANRO

4.9★

4.9 from 85+ Google reviews

As published by CANRO Heating & Cooling on canroheat.ca, checked September 7, 2026.

Technical Safety BC licensed gas contractor

Gas-fitting licence LGA0043870 and boiler licence LBP0046450, as published by CANRO.

Source: canroheat.ca

Serving Metro Vancouver since 1999

Founded by George in 1999, as stated on canroheat.ca. Boiler and hydronic expertise is CANRO's, not this domain's.

Source: canroheat.ca

Red Seal HVAC, WorkSafeBC and liability insured

As stated on canroheat.ca. Bonding and association memberships: not published.

Source: canroheat.ca

Frequently asked questions

How often should a tankless unit be descaled in Metro Vancouver?

Rinnai's guidance is at least once a year regardless of hardness; the soft water here makes scale slower, not absent. Annual is the safe default and keeps the warranty intact.

Can I flush it myself with vinegar?

Rinnai publishes a homeowner flushing procedure using white vinegar and the isolation valves. Gas, venting and combustion checks are technician work, and any doubt about the valves or pump is a reason to book a visit.

Talk to a water heater technician

Describe what the water heater is doing and get a straight answer about the next step.

On-site service in Metro Vancouver, BC. Call to check availability.

Call 604-359-1081Request service

Related services and help

Sources and verification

Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.

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