Ok so my Amtrol 41 gal indirect boiler mate has started to leak from the top at the 6yr mark no longer under warranty. I was told that it has a gasket between the heat exchanger that may be replaced and it may solve the problem. However because it will cost $$$ or more to have it done and it may not guarantee that something will not go wrong after that I've been told to replace it. An indirect tank is $$$ plus. The cost of oil $3.60 per gal here in Massachusetts is also making me wonder if I should go for an electric water heater instead. Need some guidance. Thank you in advance.