American Energy Systems Ovation - Manual (Page 31)

Version 7.1 31
Type HT 2100 0 factory-built chimney length that has the same inside diameter as the chimney
connector. The factory-built chimney must also have one inch or more insulation with a minimum of
nine inches of airspace between the outer wall of the chimney length and any combustibles.
FIGURE 16: SHEET STEEL CHIMNEY CONNECTOR, VENTILATED THIMBLE
A sheet steel chimney connector must be made from material a minimum 24 gauge thick. These
connectors must be separated by two, one-inch air channels. The outside of the air channel must be
separated from combustible materials by a minimum of six inches of glass fiber insulation. The wall
opening shall be covered and the thimble will be supported with sheet steel supports that are made from
material at least 24 gauge in thickness.
FIGURE 17: TYPE HT 2100 0 FACTORY-BUILT CHIMNEY
Installations that use type HT 2100
0 listed factory-built chimney require an inside diameter two inches
larger than the chimney connector. This listed chimney must have at least one inch or more insulation
which serves as a pass-through for a single-wall sheet steel chimney connector that is a minimum 24
gauge thick and with a minimum two inch air space between the outer wall of chimney section and any
combustibles. The minimum length of the chimney section must be twelve inches and that chimney
section will be spaced one inch away from the connector using sheet steel support plates at both ends of
chimney section. The opening shall be covered and the chimney section supported on both sides with