It is Saturday and colder than a nuns knee for this time of year (8 when I got up this am) I will be around all day. Is it more efficient to build a big fire in the morning and get my 8 hours of burn or "tend" a smaller fire all day? Time wise the bigger fire is way better but I am going to be here all day so it doesn't matter to me if I visit the garage 4 or 5 times.