STIRLING SERVICE LIMITED
INDUSTRIAL & COMMERCIAL GAS SAFETY CHECKS
Warm Air & Radiant Heating Specialists
Approved by Ambirad & Reznor UK
Serving East Anglia
SAFETY CHECKS.
Visual check to ensure the appliance is sound and secure.
Thorough inspection of the heat exchangers to ensure there are no splits or holes.
Removal of the burners for inspection and cleaning. If required.
Electrodes, ionization probes, diffusers, pilots and thermocouples will be checked, cleaned and replaced where required.
The gas valves will be checked for soundness and let by to the local isolator.
Burner pressure and working pressure will be checked.
Flame failure and lockout will be checked.
Pressure switches will be checked.
The main fan and fan control switch will be tested.
Limit switches will be checked where possible.
The controls will be checked and set to the parameters given.
The flue system will be checked. (Spillage).
A full combustion and efficiency check will be carried out.
A service report will be issued detailing the results of the service.
The Importance of Gas Safety Checks.
As well as being a requirement under the Gas Safety Regulations 1998, it is very important to have any gas appliance inspected and the combustion checked at least once a year. Without this a gas heater can become a danger to life without anybody knowing it. Gas, as with any fossil fuel, can produce carbon monoxide (CO) a highly toxic gas which can kill in minutes. There are a number of factors which can result in CO being produced.
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Incomplete combustion.
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Inadequate ventilation.
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Flame chilling (Two flames coming into contact with each other).
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Flame impingement (A flame making contact with the heat exchanger).
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An over gassed appliance. (Incorrect burner pressure).
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Blocked primary air ports.
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Dirty burner bars or injectors.
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Blocked or restricted flues.
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Cracked heat exchangers as pictured.
Although there are some visual signs to look for, soot being the most obvious, it is very difficult to determine if a gas appliance is producing CO. A full thorough inspection along with a combustion analysis is the only true way of knowing the exact amount of CO production.
WARM AIR HEATERS
Annual Inspection.
This form of heating is ideal for commercial units as it produces and distributes heat quickly and efficiently, it can also become dangerous should the heat exchanger become split or corroded, fumes CO can be spread throughout the area quickly. It is essential to have these types of appliances checked at least once a year.