Natural Draft Vent Restriction - kozy heat CALLAWAY 40 Installation And Operation Manual

7.3 Natural Draft Vent Restriction

Burner flame appearance and characteristics are affected by altitude,
fuel quality, venting configuration, and other factors. To achieve
desirable flame appearance, the vent exhaust may be restricted by
the restrictor plate (included in components packet).
The restrictor plate is shipped with all inner rings intact, and when
installed, provides the most vent restriction. There are (2) inner rings
that can be knocked out. The innermost ring knocked out will create
less restriction, and the outer most ring knocked out will create the
least amount of restriction.
Follow FIGURE 7.1 for restrictor plate installation before attaching
venting or through the baffle if venting is already attached.
restriction plate recommendations and adjustments, see Section
11.2.2 Vent Restriction (after installation) on page 59.
Restrictor Plate
Bend tabs to approx. 80° angles to create
tension to hold itself in place when installed
Insert restrictor into 5" (127mm) exhaust pipe in rebox ceiling with the tabs facing towards you
Figure 7.1, Restrictor Plate Installation
46 VENTING
For vent
Slide restrictor into exhaust pipe on
top of replace with the tabs facing
towards you prior to attaching venting
Remove innermost circle
to create less restriction
Remove all inner rings for
the least restriction
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-40 R.3 November 2021