BS sales pitch. I am putting in two stoves and a boiler. To my surprise
, the codes were pretty straight forward.
I can even vent a solid fuel and liquid fuel into the same chimney ! The code is pretty specific about how to do it and
the capacity of the chimney. The book also states that it is not recommended.
I lined my chimneys with stainless liners. My house was built in 1780s, and the chimneys are sound. But something about
200 + year old lime stone mortar gives me the wheebies. Better to line now then refinance the house later to rebuild. Could
be that I am just paranoid.
Your local building department in your town can give you copies of everything you need to know for a safe and legal install.