Hi. Im in NY and just was given the results of the Man J. The heat required is 46K btu for my house which is 3000 sq/ft (house is pretty tight insulation wise). Unfortunately, I cant seem to find an oil boiler that is close to that small and the contractor just wants to throw in the smallest he can find which is 74k btu. Gas is not available in my area. I was told I could go with 74k btu and have a smaller nozzle installed? Is that an option or will I have problems with that option? I dont want the boiler to short cycle either because it is much larger than required? Are there any reliable oil boilers that small? Thanks.