Water Level in Steam Boiler:
The first and most important item to know about when it comes to a steam heating system is to know what and where the glass water level gauge is. This is a glass tube on the side of your boiler that tells you what the water level in the boiler is. It is very important to be able to see what the water level is in the boiler. This can tell you why you are having trouble if you seem to have no heat.
If the boiler has too much water and you can’t see the level because the glass gauge is completely full that’s no good and you could hear loud banging in the pipes or even have water leaking at your radiators from the air vents. If you see no water In the glass gauge but the boiler is still running this is very bad because if the boiler is heating up with no water in it it can cause the boiler block to crack then leak everywhere and the boiler would be a total loss at that point. If you have a working device called a low water cut off this shuts off the boiker when it detects no water protecting your system.
This is why having a steam boiler serviced each year is very important. We take steps to make sure you can always get a correct reading and see the water level.
Please read the next important fact about how to correctly maintain a steam boiler.