Assessments - 1, GPA: 3
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Facilidade de uso
(7.6 cm) 9" Min. (22.8 cm) 12" Min. (30.4 cm) 33° 6" Nom. (15.2 cm) 1 1/2" Max. (3.8 cm) Drywall2" X 4" StudCombustibleMaterials Figure 9 - Hearth Extensions Noncombustible Hearth Extension 8" Max. “K” Factor.841 1/2" Typ. 1 1/2" Typ. “Z” Type Ember Protector Figure 11 - Mantel Clearances to Combustible Materials Noncombustible Hearth Extension Seal Gaps withNoncombustibleMortar or AdhesiveTop View of FireplaceDrywall4" (Approx.) (10.1 cm)33° Nom. 6" Nom. (15.2 cm) 4 3/8" Min. (11.1 cm) CombustibleMaterial MustNot OverlapBlack MetalFront Face2 3/4" Max. (6.98 cm) Ember Protector Figure 10 - Raised Hearth Extension Figure 12 - Mantel Clearances to Metal Face Chimney Pipe The DESA chimney is a snap-lock, double- wall pipe. It consists of a stainless steel inner flue pipe(s), a galvanized outer pipe and a wire spacer. Each section of pipe comes in lengths of 12", 18" 36" and 48". The actual lineal gain for each is measured after each section is fully connected. Lineal gain is the actual measurable length of a part after two or more parts are connected. Pipe Installation The pipe sections must be assembled independently as the chimney is installed. When connecting chimney directly to the fireplace, the inner flue pipe section must be installed first with the lanced side up. The outer pipe section can then be installed over the flue pipe section with the hemmed end up. Press down on each pipe section until the lances securely engage the hem on the fireplace starter. The wire will assure the proper spacing between the inner and outer pipe sections. Continue to assemble chimney sections as outlined above, making sure that both the inner and outer pipe sections are locked together. When installing double wall snap-lock chimney together, it is important to assure the joint between the chimney sections is locked. Check by pulling chimney upward after locking. The chimney will not come apart if properly locked. It is not necessary to add screws to keep the chimney together (exception, see Figure 17, page 8). WARNING: The opening in the collar around the chimney at the top of the fireplace must not be obstructed. Never use blown insulation to fill the chimney enclosure. Using ELBOW offsets and Supports Chimney weight above offset rests on return elbow. Straps must be securely nailed to rafters or joists (see Figure 15, page 8). To achieve desired offset, you may install combinations of 12", 18", 36" and 48" length of double wall pipe (see offset chart and Figure 16, page 8). The chimney support section is a 4" strap and 12" length of pipe. A chimney support is required every 30 feet above fireplace after a straight chimney run or above a return elbow after a straight chimney run (see Figure 17, page 8). This support is designed to relieve the extra weight load on fireplace and elbows when high chimneys are installed. Venting Installation Continued Secure to Collars with Duct Tape or Screws Air Inlet Location Must Allow For Bushes or Snow Air Inlet Termination Vent Hood Required for Wall Installation Vented Crawl Space (Check Local Codes Before Installing in a Vented Crawl Space) Figure 13 - Outside Air Kit Installation 15" Galvanized Outer Pipe Hemmed End 12 3/8" Stainless Inner Pipe LINEAL GAIN PART NO. DESCRIPTION GAIN V3612ST See-Through Fireplace 52 3/4" 48-12DM 48-12TM Flue Pipe 46 5/8" 36-12DM 48-12TM Flue Pipe 34 5/8" 24-12DM 48-12TM Flue Pipe 22 5/8" 18-12DM 48-12TM Flue Pipe 16 5/8" 12-12DM 48-12TM Flue Pipe 10 5/8" STL-12D Chase Style Termination 1" to 12" RTL-12D Round Top Termination 7" Figure 14 - Pipe Connection Maximum length of pipe between supports is 6' of angle run. Maximum of two 6' angle run sections per chimney system (see Figure 9, page 8). 2" (5.1cm) Minimum Venting Installation Continued Angled Firestop 2" (5.1cm) Minimum Ceiling Support 12S-12DM Support Required 30 FT. (9.14m) 30 FT. (9.14m) Straps Return Elbow Figure 17 - Chimney Supports TYPICAL OFFSET INSTALLATIONSOFFSETELBOWOFFSETELBOWRETURNELBOWOFFSETELBOWRETURNELBOWRETURNELBOWRETURNELBOWCEILINGSUPPORTPIPEV12S-8DM6' MAX(15.2cm) 6' MAX(15.2cm) 6' MAX(15.2cm) 6' MAX(15.2cm) 6' MAX(15.2cm) 6' MAX(15.2cm) Return Elbow Figure 15 - Elbow Offset OFFSET RISE CHIMNEY LENGTH A B 48" 36" 18" 12" 4 3/8" 16 3/8" ELBOW SET ONLY 9 1/2" 25 1/4" 1 12 1/2" 30 3/8" 1 14 3/8" 34" 2 17 5/8" 39 1/4" 1 1 21 1/2" 46" 1 22 3/4" 48 1/8" 1 2 26 3/8" 54 7/8" 1 26 3/8" 60" 1 1 31 3/4" 63 3/4" 1 1 34 3/4" 69" 1 1 38 5/8" 75 5/8" 2 39 7/8" 77 7/8" 1 1 1 43 3/4" 84 1/2" 1 1 46 3/4" 87 3/4" 2 1 48 7/8" 93 3/8" 2 Figure 18 - Typical Offset Installations Firestop Spacers (FS-10) Firestop spacers are required at each point where the chimney penetrates a floor or ceiling joist space. Their purpose is to establish and maintain the required clearance between the chimney and the combustible materials. When the pipe passes through a framed opening into a living space above, the firestop must be placed onto the ceiling from below as shown in Figure 19, page 9. They also provide c...