I am installing my greenwood 100 in an out side boiler room 100 ft from the house. the room it will live in is 10 ft x 12 ft with 8 and ten foor walls a saltbox design. iwood like to know how much of an opening i need to bring in makeup to replace the air the boiler inhales. i will be insulating the room to keep heat loss to a min. thanks for the help. patrick
