ben wrote:Question. Is the highboy designed to have more boiler water content? I don't think they make them anymore.
The boiler itself was made by Fitzgibbons Boiler Company. I think it holds about 13 gallons more water than a regular 520. Maybe if you were running the stoker really hard the larger boiler would have an advantage, but heating a house on 4/5 teeth is a pretty easy task for any EFM. I could have just as easily put a 350 in dad's house and had heat to spare.