What does boiler service involve ?
- y k

- Oct 25
- 2 min read
Regular boiler service is the key to keeping your heating system efficient and reliable through Ontario’s long winters. Whether you own a condensing or atmospheric boiler, annual maintenance helps prevent costly breakdowns, improves energy efficiency, and ensures safe operation.
1. System Inspection
A licensed gas technician begins by checking all main components:
Gas piping, shut-off valves, and venting.
Combustion air intake and exhaust for leaks or blockages.
System pressure, water temperature, and expansion tank performance.This step verifies that your system operates safely and meets Ontario Gas Code standards.
2. Combustion Testing and Adjustment
A full combustion analysis measures oxygen, carbon monoxide, and flue temperature. The technician adjusts gas pressure to optimize the flame and improve fuel efficiency. Combustion readings are recorded for your maintenance log.
3. Cleaning the Heat Exchanger and Burner
Soot, dust, and debris reduce heat transfer and increase fuel use. The technician removes and cleans the burner assembly, brushes the heat exchanger, and ensures ignition and flame sensors are working correctly.
4. Condensate Drain and Neutralizer Check
Condensing boilers produce acidic condensate. During service, the trap and drain are flushed, and the neutralizer media is inspected or replaced if necessary to prevent corrosion and blockages.
5. Safety Control Testing
Safety is non-negotiable. The pressure relief valve, high-limit control, and flame safeguard are tested to confirm proper operation. Any irregular readings are corrected immediately.
6. Circulator and Piping Inspection
Circulator pumps and isolation valves are checked for leaks and smooth operation. The technician confirms proper system flow and checks for unusual vibration or noise.
7. Air and Water Quality Maintenance
Filters, strainers, and automatic air vents are cleaned or replaced. Removing air and sediment from the system helps prevent corrosion and keeps heat distribution even across all zones.
8. System Startup and Report
After reassembly, the boiler is restarted. The technician verifies quiet operation, checks flue gas readings, and provides a written report listing all findings and recommendations.
Professional Boiler Service in York Region
Mazgan Inc. provides licensed boiler inspection and maintenance services across Newmarket, Vaughan, Thornhill, and surrounding areas. Every service includes a combustion test, safety verification, and performance check to keep your system running at peak efficiency.
Book your annual boiler service today at mazgan.ca or call 647-699-2474.


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