I'm looking to add an owb to the new house I'm building but I want to make sure I have everything correct before i make any purchase. What brand do you have and would you purchase the same again? I plan to heat a 2500sq feet house, 2-800 sq feet garages, hot water. I was looking into central boiler and hardy heater. I was leaning toward central boiler but have read about several problems with them including water leaks and poor customer service.