Install Instructions
22
3. The CL shall be vented into any of the following:
a. Masonry or metal chimney. Build and install in
accordance with local buildings codes; or local
authority having jurisdiction; or “Standards
for Chimney, Fireplace, Vents, and Solid Fuel
Burning Appliances”, ANSI/NFPA 211 and/or
National Building Code of Canada. Masonry
chimney must be lined with listed chimney
system. Listed clay ue lined masonry chimneys
meet venting requirements.
• External chimneys are more susceptible to
ue gas condensation due to colder outside
air temperatures. To prevent corrosion
due to ue gas condensation, use a listed
corrosion-resistant metal liner in chimney.
• Oversized chimneys are more susceptible
to ue gas condensation. To reduce the
likelihood of ue gas condensation and
ensure proper draft, use a properly sized
listed metal liner in oversized chimney.
III: INSTALLATION INSTRUCTIONS (continued)
4. Chimney Inspection – Prior to the installation of
any new or replacement fuel burning equipment the
chimney shall be inspected by a qualied installer.
The chimney shall be inspected for integrity as
well as for proper draft and condensate control.
Some jurisdictions require the use of a liner when
changing fuel types. Some jurisdictions require
the use of a liner even when the same fuel is used.
At a minimum, the chimney shall be examined
by a qualied person in accordance with the
requirements of Chapter 11 of NFPA 211, Standard
for Chimneys, Fireplaces, Vents, and Solid Fuel-
Burning Appliances.
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.
WARNING
Vent this boiler according to these instructions. Failure to do so may cause products of combustion to
enter the home resulting in severe property damage, personal injury or death.
Insufcient Combustion Air Supply may result in the production and release of deadly carbon
monoxide (CO) into the home which can cause severe personal injury or death.
Improper venting may result in property damage and the release of ue gases which contain deadly
carbon monoxide (CO) into the home, which can cause severe personal injury, death, or substantial
property damage.
Inspect existing chimney and vent connector for obstructions and deterioration before installing
boiler. Failure to clean or replace perforated pipe or chimney liner will cause severe injury or death.
Do not de-rate the appliance. Failure to re the boiler at it's designed input may cause excessive
condensation upon the interior walls of the chimney. In addition, the lower input may not create
enough draft to adequately evacuate the by-products of combustion.
Figure 16: Indirect Water Heater Piping on CL Series Steam Boiler










