Hello,
I spoke over the phone to a plumber to arrange a boiler service. The plumber tried to sell me a new boiler. Apparently this model is about
20 years old and is relatively inefficient compared to new models. He tried to sell me a replacement with the argument that the oil saved will pay for a new boiler in no time, and with the price of oil, he may have a point!He said that a new boiler may require changes to the pipework to avoid an open vent system. He said these were bad because a boiler malfunction would boil the header tank, which would melt and kill people. I remember a report in the news about that happening.
What is the alternative to open vent systems. Are open vent systems really discouraged? How much can I DIY regarding either changing the pipework or the boiler?
Thanks, Stephen.