Boiler is not heating up properly

[Joseph Venne]

Hello all,

I am not very aware of power flushing, that's why I'm here. The boiler in the home that I'm planning to rent is not heating up properly. It is a new one. Last day I noticed that the radiator is not heating up that well. What could be the possible reason?? Today while searching for a solution I came across power flushing. It was given that it can be applied when the radiators are not heating up completely. So will I have to power flush my heater? I hope that power flush would've been done during installation. What shall I do now?? Does anyone here know more about power flushing? Please give your suggestions.