The answer to 'boiler high energy bills' is that there are several common causes, including a malfunctioning thermostat, leaks in the system, improper insulation, or an aging boiler that is no longer running efficiently. Symptoms may include uneven heating, strange noises from the boiler, or unexpectedly high energy bills. Solutions can range from simple DIY fixes like adjusting the thermostat or sealing leaks, to more complex professional repairs or boiler replacement.
In general, if the issue is related to the thermostat, basic maintenance, or minor leaks, a homeowner may be able to handle it themselves. However, for more serious problems like a malfunctioning boiler or major system issues, it's best to call in a professional HVAC technician to properly diagnose and repair the problem.