Welcome to round two of our proof of closure FAQ! Q: Do I need “Proof of Closure?” A: Proof of Closure (POC) is required by NFPA86 if the burner capacity is 400K BTU/Hr or more; in these cases, proof of closure is required on one valve in series, while visual indication is required on both. Read More
Supplying and Serving
the Combustion Industry
An Olsträd Corporation Company
the Combustion Industry
An Olsträd Corporation Company
