What Gas Pressure Should My Boiler Have for Proper Operation?
CANRO Heating & Cooling provides expert advice on this common question for homeowners in Greater Vancouver. If you need professional service, our licensed technicians are available across the region.
Answer: What Gas Pressure Should My Boiler Have for Proper Operation?
Most residential boilers in British Columbia operate on natural gas at a manifold pressure of 3.5 inches water column (0.87 kPa) for natural gas, or 10-11 inches water column for propane. The incoming gas supply pressure should be 7-14 inches water column for natural gas. If the gas pressure is too low, the boiler may not fire at full capacity, or the burners may produce yellow, sooty flames indicating incomplete combustion. If the gas pressure is too high, the boiler overfires, reducing efficiency, increasing noise (kettling), and potentially causing premature heat exchanger failure. A licensed gas fitter measures gas pressure using a manometer during boiler installation and annual service. Pressure adjustments should only be performed by a licensed professional with the proper equipment.
When to Call a Professional for Help
While understanding the answer to this question is helpful, some situations require professional expertise. If you are uncertain about any step, if the problem recurs, or if you notice any signs of gas odour, carbon monoxide, or electrical hazards, contact CANRO Heating & Cooling immediately. Our licensed technicians across Greater Vancouver can provide expert diagnosis and repair. We recommend professional service for any issue that involves gas, electrical components, or safety-critical systems.
Related Services from CANRO
CANRO Heating & Cooling provides comprehensive boiler service across Greater Vancouver, including diagnostic inspections, emergency repairs, scheduled maintenance, and system replacement. Our Red Seal certified technicians service all major brands and carry OEM parts in their vehicles. For emergency service related to this question, call (604) 359-1081.
Safety Reminder
If you smell gas, suspect carbon monoxide or believe there is an immediate danger, leave the property and contact emergency services or the appropriate gas emergency authority. Do not remain inside — exit the building immediately and call for help from outside.