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Options
Heater engine unit #535XAN is used with all natural gas installations.
Heater engine unit #535XAP is used with all propane gas installations.
Optional features
Circulating Fan Kit #755CFK
Having variable speed and temperature control, it is designed to boost the natural convection process through the
appliance. It may be fitted before the fireplace is installed or retrofitted at a later date.
Natural Gas Conversion Kit #608NGK
For conversion from propane to natural gas. Intended primarily for post installation conversion in areas where natural gas
was not available at the time of initial installation.
Venting options
Direct vent installations (solid piping)
A list of all approved venting accessories is shown on pages 36–37 of this manual.
Direct Vent Co-Linear Installations (flexible piping)
Converts the appliance outlet collars to accept two 3” dia. flex liners for installation into existing solid fuel burning
fireplaces and chimneys. Requires a co-linear adapter at the appliance and either a co-linear terminal or co-linear-to-co-
axial adapter and terminal at the top of the chimney. A list of approved venting accessories is shown on pages 36–37 of
this manual.