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High efficiency gas boilers
Hi...I'm currently in the market for a new gas boiler (forced hot water) in MA. I have a 50+ year boiler and qualify for an early replacement boiler rebate which is why I'm in the market. I have received three quotes, and three different boilers were recommened: Lohinvar Knight, HTP Elite, and Buderus. I was told by one plumber to stay away from Buderus high efficiency because it is made with cast aluminum and not all stainless steel. My hesitancy is that these boilers only have a 12 year limited, pro-rated warranty, and while the plumbers I have spoken with each have 5+ years experience installing them, two of the three acknowledge the risk with these boilers given there are no long term results here in the US. My concern is the maintenance of these boilers over the first 15 years and the cost of repairs etc. I really don't want to replace an expensive boiler in 15 years. If it weren't for the generous rebate I would probably opt for a conventional boiler with a limited 25 year or life time warranty with less efficiency, which as one plumber said is a simpler way to go with less worries and headaches. I am looking for any information and experience you have had with these boilers, and any insights you can provide.