heat--glo-lifestyle mtl-insert User Manual

Heat & Glo  •  MTL-Insert  •  2145-900 Rev. F  •  9/08

8

Fire Risk.

Asphyxiation Risk.

•  Terminations MUST meet minimum clearances.

•  Exhaust gases are hot.

•  Nearby vents may draw fumes into house.

Figure 4.1 specifi es minimum vent heights for various 
pitched roofs.

Flat to 6/12...........................................................1.0*
Over 6/12 to 7/12 .................................................1.25*
Over 7/12 to 8/12 .................................................1.5*
Over 8/12 to 9/12 .................................................2.0*
Over 9/12 to 10/12 ...............................................2.5*
Over 10/12 to 11/12 .............................................3.25
Over 11/12 to 12/12 .............................................4.0
Over 12/12 to 14/12 .............................................5.0
Over 14/12 to 16/12 .............................................6.0
Over 16/12 to 18/12 .............................................7.0
Over 18/12 to 20/12 .............................................7.5
Over 20/12 to 21/12 .............................................8.0

* 3 foot minimum in snow regions