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Preventing Damage to Your Boiler’s Gauge Glass

A boiler’s gauge glass might be small, but this deceptively simple component plays an essential role in the operation of your boiler system.  By offering an easy-to-understand visual readout of the fluid level in your boiler, the gauge glass can prevent dangerous overheating incidents that occur when water levels fall too low and heating elements become exposed. With this in mind, it’s important to take good care of your gauge glass so that your boiler can continue to run safely and efficiently.

We can start by choosing the right gauge glass for the job.

Not all glass is created equal. The gauge glass in your boiler is rated for specific temperature variances, pressures and types of liquid. When shopping for a replacement gauge glass, be sure to choose one that is not only the right size, but also designed to stand up to the unique demands of your boiler. Once you’re done installing the new glass, be sure to replace any protective guards and safety systems you may have had to remove during the installation process as well.

Conduct regular visual inspections and maintenance.

Because your gauge glass is so important to the safe operation of your boiler, you should inspect it daily for any signs of stress or damage. Use a flashlight to illuminate the glass from behind so that you can easily spot cracks, chips or other signs of damage. Because your gauge glass is routinely exposed to immense pressures, these minor defects can cause catastrophic failures if left unattended.

You should also clean the gauge glass regularly with a non-abrasive glass cleaner to keep it clear and easy to read. If the gauge glass becomes cloudy and impossible to clean effectively, you should replace it immediately to ensure you can get accurate readings.

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