I live in an older home with hot water oil heat and big old iron radiators. I am in the process of getting estimates on converting to natural gas. My current boiler is pretty new (8 years).
Two people who have come by have told me that I should just convert the burner given the age of the boiler. Further, one person told me that a high efficiency boiler has lots of condensation that would be a major service nightmare with iron radiators and pipes.
The man identifying where the gas meter would go also told me that I should do a conversion, and that folks would try to sell me a new boiler when it wasn't necessary.
So, a third guy was just out this morning who told me that I would be very disappointed in the savings if I didn't go with a new high-efficiency boiler. He told me that the condensation would not be an issue. He also said that converting it would be very inefficient -- lots less than it is currently with oil -- like it would end up being around 70%.
If anyone can give me any insight on this, I would be very grateful. Thanks so much!