BPatrick wrote:Guys. Thanks for the replies. Indoor isnt an option. Our add on room has coal stove replaced a wood stove and chimney already there. Again I cannot do in house basement. I have to make the existing out building work. I don't undestand why I will lose so heat if I use well insulated lines. Also I will be using the outbuilding. I don't want to do a owb and burn up money.
FYI don't go cheap route for underground insulate pipes, I've used this http://www.thermopex.com/
... Also 2 friends have this with 300 ft run, one been in ground for 10 yrs with no issue. Keystoker makes five units the have BTU ratings 125,000 150,000 250,000 350,000 450,000 someone else will be able to speak up on other manufactures on btu. What ever you choose you'll be happy allot of great coal units to choose from.