hello-I am converting from oil to gas and am need to make a decision on which brand of a boiler to buy, or to just do an oil to gas burner conversion. This is by far the least expensive and will give me a one to two year payback.
I have spoken with a few contractors and all have the 'best" system. So far the Navien CH240 is the best price but it is rated only at 91%. I am considering a Dunkirk VLT, and I just saw a Lochinvar/Knight WHN. Then there is Peerless, Triangle Tube, Buderus, Weil McLean Ultra, and---.
My home has cast iron baseboard and 5 zone valves with 2 large circulating pumps. I also have an AMTROL hot water storage tank. I burned about 1400 gals of oil this past year. The current oil system is a Weil McLean gold 5.
Can any of you give me some thoughts as to quality (or lack of) and reliability. Is the warranty time important ? Thanks