Picture this: you’re sleeping peacefully when an alarm suddenly starts going off in the background. Groggy and confused, you get up to investigate — only to realize moments later that you need to evacuate your home. Soon, firefighters arrive, followed by FortisBC shutting down an appliance for safety reasons.

This was not how one local family expected their morning to begin.

The cause? A boiler that hadn’t been cleaned or serviced in over 13 years.

The carbon monoxide (CO) alarm had activated — and thankfully, it did exactly what it was designed to do: protect the occupants from a potentially dangerous situation.

What Happened

When our team received the call, a Harbourgreene technician was dispatched immediately to investigate. Upon inspection, it became clear that the boiler’s heat exchanger was heavily contaminated with years of buildup. The restricted combustion airflow caused incomplete burning, resulting in dangerously high levels of carbon monoxide.

Carbon monoxide is colorless, odorless, and invisible — making regular maintenance and detection equipment absolutely critical.

The Solution

Our technician performed a full teardown of the boiler, thoroughly cleaning the combustion chamber and heat exchanger to restore proper operation and safe combustion conditions.

After servicing and testing, heat was safely restored to the family’s home within a short time, and the system was returned to normal operation.

The Lesson

Situations like this are entirely preventable. Boilers and heating equipment require regular inspection and cleaning to operate safely and efficiently. Neglected maintenance doesn’t just reduce performance — it can become a serious safety hazard.

Protect Your Home and Family

Here are three simple steps every homeowner should follow:

Schedule regular boiler inspections and maintenance
Never ignore unusual noises or performance issues
Install and maintain carbon monoxide detectors in your home

A functioning CO detector made all the difference in this case.

Don’t wait for an emergency to discover a problem. Preventative maintenance is always safer — and more affordable — than emergency repairs.

Boilers are the heart of heating systems in many apartment buildings, providing hot water and warmth for multiple units. However, these systems can face unique challenges due to their size, complexity, and heavy usage. Understanding common boiler issues can help building managers and residents prevent breakdowns and ensure reliable heating all year long.

1. Uneven Heating Across Units

One of the most frequent complaints in multi-unit buildings is uneven heating. Some apartments may be too hot, while others remain cold. This often results from trapped air in the system, blocked radiators, or imbalanced piping. Regular system flushing and professional balancing can ensure consistent heat distribution.

2. Pressure Fluctuations

Boilers rely on a stable pressure range to function efficiently. Low pressure can prevent radiators from heating properly, while high pressure may trigger safety shutdowns. Pressure fluctuations can be caused by leaks, faulty valves, or expansion tank issues. Routine inspections help detect problems before they escalate.

3. Strange Noises

Banging, gurgling, or whistling noises coming from the boiler are usually signs of air in the system, limescale buildup, or failing components like pumps and valves. Ignoring these noises can lead to bigger malfunctions. Professional maintenance can remove buildup and replace worn parts to restore quiet, efficient operation.

4. Water Leaks

Leaks are a serious concern in apartment buildings. Even small leaks can damage ceilings, walls, and floors while reducing system efficiency. Leaks often originate from corroded pipes, valves, or fittings. Prompt professional repair is critical to prevent extensive property damage.

5. Pilot Light or Ignition Failure

Older boilers may experience pilot light outages, while modern systems can encounter ignition failures. Both prevent the boiler from producing heat and hot water. Causes include faulty thermocouples, clogged burners, or gas supply issues. Regular inspection ensures reliable ignition throughout the winter.

6. Lack of Maintenance

Perhaps the most common “issue” is neglect. Without annual professional inspections, minor problems can escalate into costly repairs or complete system failure. Planned maintenance programs are essential for maximizing boiler lifespan, efficiency, and safety.

When a Boiler Becomes a Safety Risk: A Real Reminder About Maintenance