Positive Pressure Chimney Systems
- Tested and listed to UL103 'Standard for Factory-Built Chimneys for
Residential Type and Building Heating Appliances'.
- For venting commercial and industrial boilers, engines, ovens, and
processing equipment where temperatures do not exceed 1400ºF continuous
and pressures do not exceed 60" W.C.
- Sizing and system routing must conform to ASHRAE guidelines or
equipment manufacturers instructions. Detailed calculations and system
assembly drawings must be submitted for approval.
- 304 or 316 stainless inner liner , air space or various thickness of
fiber insulation, aluminized or stainless steel outer jacket.
5" through 60" diameters are available. Typically these systems are
specified by the responsible engineer, so detailed specifications are
needed to prepare an accurate quote. These vent systems are built to
order and not available in all areas. (see
PV Quality Seal).