Here is a check list of a full boiler inspection that our plumbing and heating technicians perform:

• Check operation of safety limit control controls.
• Check pressure relief valve.
• Check water pressure and temperature set points.
• Check expansion tank.
• Check operation of thermostat.
• Lubricate circulating pump as required.
• Check radiant floor temperature control device (mixing valve or equipment).
• Check pressure switches and vent blower (if applicable).
• Inspect burners and clean if required.
• Examine vent connector and inspect venting system.
• Check the vent damper operation (if applicable).
• Check and adjust pilot light (if applicable).
• Check flame rectification.
• Measure the stack (flute) temperature.
• Check gas piping to boiler.
• Check and adjust manifold gas pressure.
• Clock appliance to verify correct input.
• Combustion / ventilation air adequate.
• Check for elevated carbon monoxide levels.
• Inspect heat exchanger.
• Check temperature difference between supply and return piping.
• Check for Carbon Monoxide.