Avoid using 90* elbows when installing stove pipe. Use 45* elbows whenever possible for horizontal…
Lennox Commecial Rooftop Unit
WETT is a a national standard that is now applied to all wood-fired installations. WETT is an acronym for Wood Enengy Technology Transfer, a non-profit association that promotes the safe and effective use of wood appliances. WETT certified inspectors have taken a comprehensive week long course and are required to maintain their certification by way of an upgrade course every five years.
read details
