What Type Of Chimney Could A UL 127 Factory Built Fireplace Utilize?

What Type Of Chimney Could A UL 127 Factory Built Fireplace Utilize? Fireplaces listed to UL 127 can be constructed of metal or masonry, and are meant to use a factory-built chimney. UL 127 testing is done with a fireplace installed into a plywood enclosure with thermocouples arrayed around the structure. What is a factory-built

How Long Did Humans Exist Without Fire?

How Long Did Humans Exist Without Fire? These observations are problematic because ancient human ancestors migrated into the cold European climate more than a million years ago, implying that they survived for 600,000 or so without fire. How long did humans not have fire? Claims for the earliest definitive evidence of control of fire by

How Does A Fake Fireplace Work?

How Does A Fake Fireplace Work? Electric fireplaces work by drawing in cool air, heating it internally using a heating coil and gently forcing the warmed air back out into the room by way of a fan. Some electric fireplaces also use infrared technology which directly heat objects within a room. How do fake fireplaces