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I’m trying to build an enclosure around my furnace to keep out workshop sawdust. The 1997 Uniform Mechanical Code says I can use “insulating millboard” to reduce the required clearances to combustible material. They define insulating millboard as “a factory-made product formed of noncombustible materials, normally fibers, and having a thermal conductivity of 1 Btu-inch per square foot per degree Fahrenheit [1.l73W/m*K)] or less.”
So …
1. Does this stuff have a more common name, or a trade name?
2. Where can I get this stuff?
Ideally, I would like to make sliding or removable panels around the furnace and water heater. Any suggestions?
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I'm trying to build an enclosure around my furnace to keep out workshop sawdust. The 1997 Uniform Mechanical Code says I can use "insulating millboard" to reduce the required clearances to combustible material. They define insulating millboard as "a factory-made product formed of noncombustible materials, normally fibers, and having a thermal conductivity of 1 Btu-inch per square foot per degree Fahrenheit [1.l73W/m*K)] or less."
So ...
1. Does this stuff have a more common name, or a trade name?
2. Where can I get this stuff?
Ideally, I would like to make sliding or removable panels around the furnace and water heater. Any suggestions?