In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
The boiler bangs. Our heating contractor blames it on contamination in the water/glycol.
Can this be the cause? We have a seperator now he has recently installed a sock filter. Claims this will filter out the fine contaminants. I have a high efficiency Lochinvar Boiler. Claims the piping in the boiler is very narrow. No help as yet. Can this be the cause of the banging or could it be air in the system?