02-16-2009, 10:58 PM
after posting a photo of a large fire box i was thinking(OK i know its dangerous) the grate area of a up big boy is 150.3 square feet. now think of a room in your house that is 10 ft wide and 15 ft long and that's the grate area not the fire box size just the grate's.one fine train room ![Smile Smile](https://bigbluetrains.com/images/smilies/smile.png)
jim
![Smile Smile](https://bigbluetrains.com/images/smilies/smile.png)
jim