Use and Care Manual
12
Figure 8: Proper and Improper Locations of Draft Regulator
a. Loose Mortar – Loose mortar could be an indication
of a prior history of condensing ue gases upon
the inside walls of the chimney. Colder climates
are more susceptible to this condition. Under no
circumstances shall a chimney of this condition be
used until it meets the requirements of NFPA 211
or CSA B139.
b. Unlined Chimney – Under no circumstances shall
a chimney constructed of brick only be used. Only
approved clay liners or listed chimney lining systems
shall be used as specied in NFPA 31 or CSA B139.
c. Abandoned Openings – Openings through the
chimney wall that are no longer used shall be sealed
in accordance to NFPA 211. Often abandoned
openings are improperly sealed and usually covered
by a gypsum wall covering.
d. Clean Chimney – Chimney shall be free of all loose
debris.
5. Draft Regulator – a draft regulator is not supplied with
the boiler. A draft regulator must be used with this
appliance. Refer to Figures 7 and 8.
CHIMNEY CONNECTOR
1. A chimney connector (vent pipe) is used to connect
the boiler to the base of the chimney. The chimney
connector should be kept as short as possible. The
horizontal length of the chimney connector shall not
be greater than 10 feet.
DANGER
The chimney and connector shall be inspected
annually for signs of debris and corrosion. Loose
mortar at the base of the chimney may be a sign
of condensate damage to the chimney. A chimney
professional shall be contacted immediately to
examine the damage and recommend a solution.
Long term operation while in this condition may
cause a venting failure and force ue gases into
the living space. If the chimney is to be re-lined
use the recommendations in NFPA 31, Appendix E
or CSA B139.
2. Vent Connector shall be any of the following and of
the same size as the outlet of boiler.
a. Type L or a factory built chimney material that
complies with the Type HT requirements of
ANSI/UL 103. Install in accordance with listing
and manufacturer’s instructions.
b. Steel pipe having resistance to corrosion and
heat with a minimum wall thickness of 24 Gauge
(0.024”).