Ijust purchased a well mclean wto3 boiler it was installed yerterday my two problems are when boiler fires up it seems to be exceptionally loud to the point where it can scare you. And secondlly the furnace seems to go on and off more then my previous one but stays on for a shorter deration of time. Weson energy assures me that this is all normal do you agree.

No the boiler is not supposed to scare you when it starts. Sounds like delay ignition and a professional should make adjustments.