New Buck Corporation 261 - Manual (Page 28)

HOW TO LOCATE CHIMNEY EXIT, AND INSTALL
C. Rear Exit to Vertical then to Horizontal into Masonry Flue using
(6" DVL Close Clearance pipe and Elbow’s).
With standard close clearance shield and pipe shield.
NOTE: For minimum clearances (See Page 27, Figure 21).
Before connecting these units to a masonry chimney, determine that the masonry flue pass-
through connector thimble meets the NFPA-211 Code,and local building codes, “maintain
manufacturers minimum clearances”from the ceiling. If the connector thimble
does not meet these codes, the pass-through connector must be modified.
Connectors may pass through walls or partitions constructed of combustible material if the
connector is
(a) Either listed for wall pass-through or is routed through a device listed for wall pass-
through and is installed in accordance with the conditions of the listing.
(b) Selected or fabricated in accordance with the conditions and clearances as stated in
the NFPA-211 Code. Any unexposed metal that is used as part of a wall pass-through
system and is exposed to flue gases shall be constructed of stainless steel or other
equivalent material that will resist corrosion, softening, or cracking from flue gases at
temperatures up to 1800
o F.
In addition, a connector to a masonry chimney shall extend through the wall to the
inner face or liner but not beyond, and shall be firmly cemented to masonry.
EXCEPTION: A thimble may be used to facilitate removal of the chimney connector for
cleaning, in which case the thimble shall be permanently cemented in place with
high-temperature cement. Once the through-the-wall thimble codes are met,
1. Mark the plumb line on the wall directly behind the center of the heater.
(See Page 27, Figure 22.)
NOTE: When using DVL Close Clearance Pipe , “maintain manufacturers minimum
clearances”between pipe and ceiling.
2. Place one elbow on to the New Buck Cast Collar, then vertical portion of the heater pipe
and the next elbow in position and project a point onto the plumb line level with the
center of the elbow.
3. Measure up so there will be at least 1/4" rise per foot of horizontal connector pipe,
maintaining clearances to the ceiling as noted in Page 27,Figure 22.This will give you the
center of the hole for the chimney penetration.
4. After locating the center of the penetration.The thimble shall be permanently cemented
in place with high-temperature cement
5. Once the through-the-wall thimble codes are met, simply connect the DVL Close
Clearance Pipe with elbows to the wall pass-through connector.
(a) Maintain 1/4" rise per foot (horizontal length) from the appliance to the chimney.
(b) Connect each section so the crimped end faces downward.
(c) Secure each section to each other using at least three (3) sheet metal screws or rivets.
(d) Use three (3) sheet metal screws to fasten DVL Close Clearance Pipe to New Buck
Cast Collar on heater.after New Buck Cast Collar Part# MA6CHIMCNB has been
attached to stove. (See Page 27 Figure 22).
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