What is a consequence of using an oversized boiler?

When a boiler is oversized, it means that its capacity exceeds the heating requirements of the space it is intended to serve. This often leads to the boiler frequently cycling on and off. This repetitive cycling occurs because the system can quickly reach the desired temperature and shut down, only to restart soon after when the temperature drops again. This behavior is inefficient as it increases wear and tear on the boiler and can lead to a waste of fuel.

In contrast, a properly sized boiler would operate more steadily, maintaining consistent heating levels without unnecessary start-ups and shutdowns. This not only enhances efficiency but also prolongs the lifespan of the equipment. While violations in heating stability could theoretically boost the temperature controls, the overall consequence of an oversized boiler primarily revolves around inefficient operation characterized by excessive fuel usage and unnecessary cycling.