Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
Oh yes was a new heat exchanger among other things!
It was a classic service call but then find it had stopped working you know the ones lol
Reply to the thread, titled "Glowworm boiler broken" which is posted in Boiler Advice Forum on Plumbers Forums.
We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.