If your Kamloops home runs on a hot water boiler — whether it feeds baseboard radiators, radiant floor loops, or a combination system — summer is the single best time to have it serviced. Most homeowners don't think about their boiler until the first cold snap of September, which is precisely when every HVAC company in the region gets busy. Booking a service call in June or July means you get a tech when you want one, parts are available without delay, and any problems that surface can be fixed long before you actually need heat.

Why Boilers Need Annual Service

A boiler is a pressure vessel that operates under demanding conditions — cycling on and off hundreds of times over a heating season, maintaining precise water temperatures, and managing combustion gases. Unlike a furnace filter that a homeowner can swap out themselves, most boiler maintenance requires calibrated instruments and a qualified technician. Annual service isn't just a manufacturer recommendation — in BC, gas-fired boilers must be serviced and inspected to maintain compliance with the BC Gas Safety Regulation and to keep your home insurance valid.

Skipping service doesn't mean nothing happens. It means problems develop slowly and undetected — until the boiler fails on a -15°C night in January and you're waiting on an emergency call and a backordered part.

What a Proper Boiler Service Includes

A thorough annual service from a qualified gas fitter and heating technician should cover the following:

• Combustion analysis — checking burner flame quality, CO levels, and flue gas temperature to confirm efficient and safe combustion
• Heat exchanger inspection for cracks, corrosion, or soot buildup that reduces efficiency or allows combustion gases to enter the water circuit
• Pressure and temperature relief valve test — the most critical safety component on the boiler; it must open freely at set pressure
• System pressure check and expansion tank inspection to ensure the closed loop is properly pressurized
• Circulator pump inspection — checking for noisy bearings, leaking seals, or reduced flow that can cause uneven heating across zones
• Zone valve operation test — confirming each zone opens and closes correctly and that the motorized heads aren't sticking
• Gas valve and ignition system inspection — checking electrode gap, igniter function, and gas valve response
• Venting and flue inspection for blockages, corrosion, and proper draft
• Controls calibration — verifying aquastat settings, outdoor reset curves (if equipped), and thermostat response

Kamloops-Specific Considerations

Kamloops winters are cold enough that boiler reliability is a genuine safety matter — not just a comfort issue. Overnight lows regularly drop below -15°C, and extended cold snaps below -20°C are not unusual. A boiler that fails in those conditions can result in frozen pipes within hours in a poorly insulated home, particularly in crawlspaces and exterior walls.

The city's water also has moderate mineral content. Boilers that have been operating for years without a system flush can accumulate scale in the heat exchanger and sediment in low-flow zones, both of which reduce efficiency and shorten the boiler's service life. If your system has never been chemically flushed, a summer service is a good time to add that to the work order.

Warning Signs Your Boiler Needs Attention Now

Even if your boiler made it through last winter without obvious problems, pay attention to these signs that something may be developing:

• Banging, kettling, or gurgling sounds during operation last winter — often a sign of scale buildup or trapped air
• One or more zones that heated poorly or took longer than usual to reach temperature
• The boiler short-cycled frequently — firing and shutting off more often than it used to
• Your heating bills climbed noticeably without a change in how you use the system
• The pressure gauge crept above or below its normal range repeatedly
• Any visible rust staining, weeping from fittings, or moisture under the boiler cabinet
• The system is more than 15 years old and hasn't had a recent professional assessment

When to Consider Replacing Rather Than Servicing

A well-maintained cast iron or steel boiler can run for 25 to 30 years. But there are situations where continuing to repair an aging unit stops making economic sense. If your boiler is over 20 years old, requires frequent repairs, or a major component like the heat exchanger or gas valve is failing, the math often favours replacement — particularly given the efficiency gains of modern condensing boilers, which can achieve 95%+ AFUE compared to the 70–80% efficiency of older atmospheric units.

A summer service call is also the right time to have that conversation. There's no urgency, no cold weather pressure, and a technician who can give you an honest assessment of the system's remaining useful life and the cost-benefit of upgrading versus continuing to maintain.

Don't Wait Until September

The homeowners who have the most stressful falls are the ones who ignored the boiler all summer and called in September when the wait times were long and parts were already on backorder. The homeowners who have the most comfortable winters are the ones who booked service in June, fixed what needed fixing in July, and went into the heating season knowing their system was ready.

Advanced Plumbing Kamloops services gas-fired boilers, combination systems, and hydronic heating equipment throughout Kamloops and the Thompson-Nicola region. Contact us this summer to schedule your annual boiler service — before everyone else remembers they need one.