CLEAN BURN CB-200-CTB, Operator'S Manual, Page: 63 / 148

Coil Tube Boiler Operator's Manual: Models CB-200-CTB, CB-350-CTB, and CB-500-CTB
4-25
Installing the Stack Penetration
WARNING: When running the stack through your ceiling, roof, or sidewall, you must use
Class A/UL103 HT double-wall insulated all-fuel stack components with a stainless steel liner.
DO NOT run single-wall stack through your ceiling, roof or sidewall.
1. Refer to Figure 4I as needed.
2. Follow the installation instructions provided by the stack manufacturer.
Installing the Exterior Stack
ATTENTION: All exterior stack pieces must be Class A/UL103 HT double-wall insulated all-fuel stack
components with a stainless steel liner.
• DO NOT use Class B Vent/double-wall stack components (i.e. for gas fired appliances only).
• DO NOT use Type L Vent/double-wall stack components (for approved fuel oil appliances
only).
• DO NOT use single-wall stack for your exterior stack. Single-wall exterior stack chills the
stack gases and results in poor draft and poor burner performance.
1. Refer to Figure 4I as needed.
2. Follow the installation instructions provided by the stack manufacturer.
3. Install water-tight roof flashing around the penetration of the exterior stack.
NOTE: Clean Burn recommends the use of "Dektite" roof flashing (or equivalent) which
ensures a water-tight seal when installed properly. Contact your local Clean Burn dealer for
details.
Installing the Stack Cap
NOTE: Proper installation of a Class A/UL103 HT stack cap ensures the free flow of stack gases which
is essential for optimal burner performance.
1. Refer to Figure 4I as needed. Your stack cap should be classified as: Class A/UL103 HT
non-restrictive, all-fuel type.
2. Install the stack cap according to the manufacturer's instructions.
Installing the Draft Inducer
ATTENTION: The Field brand draft inducers have been tested for use on Clean Burn Equipment. DO NOT
use other models or brands of draft inducers.
Understanding the Importance of the Draft Inducer
The draft inducer is designed to aid in the removal of the natural draft created by the appliance to vent the
combustion gases to the outside of the building. As the paddle wheel turns, a negative pressure is maintained
within the stack so that the combustion gases can leave the boiler and travel out of the stack. (See Figure 4N.)
Proper sizing, installation, and adjustment of the draft inducer are critical for optimal draft inducer
operation.