STR Series Woodburning Fireplace Homeowner's Installation and Operating Manual For Models: STR33 STR36 STR42 ��� ��������� For use in U.S./Canada Underwriter's Laboratories Report No. MH7603 DO NOT DISCARD THIS MANUAL: Retain for future use. 7412961 12/08 Rev.
STR Series Woodburning Fireplaces Safety Information PLEASE READ THIS MANUAL BEFORE INSTALLING AND USING FIREPLACE. IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these instructions may result in a possible fire hazard and will void the warranty. Description The STR Series fireplaces are multi-side solid fuel, woodburning fireplaces. These are radiant models only and include a preinstalled outside air kit.
STR Series Woodburning Fireplaces STR Series Woodburning Fireplace F G 12" 24" Total Unit Width Framing Width Will be 24" Minus 2 x (Drywall Thickness) �� C 18���" 7���" D 36" E 37" 12" 21" STR33 STR36 STR42 A 33" 36" 42" 838mm 914mm 1067mm B 37" 40" 46" 940mm 1016mm 1168mm C 18���" 20" 23" 470mm 508mm 584mm D 49���" 49���" 53���" 1267mm 1267mm 1368mm E 52���" 52���" 56���" 1340mm 1340mm 1442mm F 11" 11" 13���" 279mm 279mm 343mm G 8" 8" 11" 203mm 203mm 279mm J 26���"� � 29 ����"� 35����" 680mm 7
STR Series Woodburning Fireplaces STR Series Woodburning Fireplace Flue Collar Outer Collar Header Standoffs Ledge Brackets Outer Dome Flue Damper Control (Inside) Brick liner on Sides and Hearth Gas Line Knock-out (Both Sides) Gas Line Access Wood Grate Hearth Firebox Outside Air Access Air Inlet Outside Air Control Metal Safety Strips, shown not in place (1, 2, or 3 Pieces) FP701a Fig. 3 STR Parts Identification.
STR Series Woodburning Fireplaces Chase Installation Insulation methods shown are optional for cold climate, not a requirement for unit operation. Termination Cap Storm Collar Pan Flashing Batt Insulation (cut out around firestop) Firestop Draftstop Ceiling Level Outer Dome Refer to Figures 21 and 26 for clearance information.
STR Series Woodburning Fireplaces Chimney Requirements - Offset Installations OFFSET CHIMNEY FLUE EXIT RISE CHIMNEY SECTION B A D E 6 FT. C G 30˚ OFFSET ELBOW RISE H OFFSET 30˚ RETURN ELBOW 30˚ OFFSET ELBOW B FP282 30˚ RETURN ELBOW 30˚ Elbow Offsets G 1' 1¹⁄₂' 3' 4' SKCS8 SUPPORT H HEARTH FLOOR Example 1 Example 2 Notes: G + H cannot exceed 20 feet.
STR Series Woodburning Fireplaces Planning Information Preplanning an installation is very important to ensure safety and to save time and money. An installer must predetermine where a fireplace will be set and how the chimney system will be run. NOTE: STR33/36 models use MHSC SK8 (2-wall) chimney systems. STR42 Fireplace uses only model 11CF chimney system. Mounting the Fireplace A fireplace may only be mounted on the following surfaces: 1. A flat combustible surface. 2. A raised wooden platform. 3.
STR Series Woodburning Fireplaces Installation Chimney Supports The chimney system is supported by the fireplace for vertical chimney heights less than 20' (6 m) above the hearth. Chimney supports are required if the vertical height exceeds 20' (6 m). Locate chimney supports at ceiling holes or other structural framing at 20' (6m) heights. Spacing between chimney supports must not exceed 20' (6 m). Use Chimney Support Model SKCS8 for SK8 chimney, and Model 11CS for 11CF chimney.
STR Series Woodburning Fireplaces Framing Chimney Set-up Framing can be constructed before or after the fireplace is set in place, however, most installers build the frame before setting the fireplace. Since you have already preplanned the chimney run, you should know exactly how the installation is to be accomplished — how much pipe is required, the number of elbows, if any, and type of termination to be used. Frame fireplace with 2 x 4 lumber or heavier materials.
STR Series Woodburning Fireplaces Framing the Ceiling Hole Actual Centerpoint X Chimney Centerline Frame the ceiling chimney hole as shown in Figure 12. It is good practice to use framing lumber that is the same size as the ceiling joists; this is a requirement at attic level.
STR Series Woodburning Fireplaces Positioning, Safety Strips, Securing the Fireplace Slide fireplace into position. Lift the fireplace front slightly and slide the metal safety strips under front bottom edge about 1¹⁄₂" (38mm), allowing the remainder to extend in front of firebox. Overlap strips at least 1/2" (13 mm) to provide a positive joint. (Flat safety strips are packed with fireplace.) (Fig.
STR Series Woodburning Fireplaces Installing the Chimney System Pipe Section Start by attaching the first chimney section to the collar on top of the fireplace. Pipe Rim UP Install the pipe as pictured in Figure 16. When you get a good lock, you will hear the pipe clearly snap together. Once sections are snap-locked in place, it is extremely difficult to get them apart. Make sure the pipe is firmly snapped and locked together as each pipe section is mounted.
STR Series Woodburning Fireplaces Firestop spacers are not available for nor are they required on vertical walls. Consider this dimension when determining how many straight chimney sections are needed. DO NOT put any sealant around the area where the outer pipe slides through the firestop spacer. If you seal this area, it may cause a fire hazard. NOTE: Chimney supports are generally used in long runs in a chase installation. A chimney support cannot be mounted directly to the fireplace.
STR Series Woodburning Fireplaces Mark an outline of the roof hole around the center of the point nail. NOTE: Hole dimensions given in the chimney top installation instructions are horizontal dimensions; therefore, the hole size must be marked on the roof accordingly. Cover the opening of the installed chimney so debris cannot get into the system. Cut and frame the hole. It is good practice to use framing lumber that is the same size as the rafters.
STR Series Woodburning Fireplaces Mantel Clearance No Noncombustible Facing Material 1/2" Noncombustible Material Header Ledge Bracket * Standoff 1/2" 2 x 4 Stud 12" (305mm) Min. Finished Wall 12" (305mm) Max. Finished Wall Combustible Mantel and Trim Standoff 12" (305mm) Max. Combustible Mantel and Trim Mantel Clearance with Noncombustible Facing Material 2 x 4 Stud 12" (305mm) Min. Noncombustible Material Header Ledge Bracket 6“ (159mm) Min.
STR Series Woodburning Fireplaces Side Wall Protection Examples of wall shield insulation: All joints (top, bottom and sides) where wall or decorative facing material meets fireplace surround must be completely sealed with a noncombustible material. (Figs. 20 and 24) 1. Manville - CERAFORM 126, K=.27, 1/2 inches thick 2. MHSC - EH2416, K = .458, 1 inch thick required.
STR Series Woodburning Fireplaces Minimum Hearth Extension Dimensions Minimum Wall Clearances WITH Noncombustible Surround Facing (for On-Site Construction) WITHOUT Noncombustible Surround Facing Shaded area starts 1/2" away from edge of unit 4" 4" BRICK (Example material) E F** C** Side Wall Firebox Opening E D A - Min. clearance to combustible perpendicular wall May install noncombustible decorative covering OR .018" min. sheet metal Side B - Min.
STR Series Woodburning Fireplaces Example of Determining Hearth Extension Equivalents To determine the thickness required for any new material: NEW K of new material (per inch) thickness required = X of listed thickness K of listed material (per inch) material Seal Cracks Between Fireplace and Hearth Extension with Noncombustible Material Noncombustible Material 7¹⁄₂" Max. Thickness Combustible Floor Lower Surround Noncombustible Material Fireplace Hearth Example for Common Brick T (new) = 5.0 / 0.
STR Series Woodburning Fireplaces Installing Line for Gas Logs Majestic Fireplaces are designed to accept a 1/2" (13 mm) gas line for installation of an approved gas appliance. (MHSC manufactures a wide variety of gas logs for use in Majestic fireplaces.) Be sure to have the appliance installed in accordance with building codes. Fireplace Top View Hole in Outer Casing 1" Gas Line Tube Supply Line Repack Insulation Gas connection may enter from either left or right side of the fireplace.
STR Series Woodburning Fireplaces 1, 2, 3 4 d c 5 7 b 8 a 6 9 11 10 12 961 MHSC reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time, without notice. STR33/36/42 SERIES Ref. 1. 2. 3. 4. 5. 6. 7a. 7b. 7c. 7d. 8. 9. 10. 11. 12.
STR Series Woodburning Fireplaces Accessories The following accessories for this appliance are available from your local Majestic Fireplaces distributor. Should you need additional information beyond what your distributor can furnish, contact: MHSC, 149 Cleveland Drive, Paris, KY 40361, Attn: Technical Services. CAUTION: This fireplace and chimney assembly is a highly engineered system, and, as such, must be operated only with MHSC approved components.
STR Series Woodburning Fireplaces Chimney Components U.S. Component Round Top Termination Round Top Termination Long Round Top Termination Long Round Top Termination Knock-down Shroud Pyramid Knock-down Shroud Square Square Termination Adapter Description Round termination to be used with SK8 chimney system. (Flashing not included.) Round termination to be used with 11CF chimney system. (Flashing not included.) Round top to be used with a chase installation utilizing SK8 chimneysystem.
STR Series Woodburning Fireplaces U.S. Chimney Components, cont'd. Component Firestop Chimney Support Attic Insulation Shield Description Model Number Required at each floor level of chimney installation. (Plus attic on multi-story installation.) SKFS2A — SK8 (8" straight flue) SKFS6A — SK8 (8" 30˚ inclined flue) FS2A (Model 11CF) (straight flue) FS6A (Model 11CF) (30˚ inclined flue) Used to support chimney for each of: 20' vertical SKCS8 - SK8 height and 6' of angled chimney run.
LIMITED WARRANTY Factory-Build Fireplace and Components (Except Blowers) What is Covered and For How Long Five-Year Coverage: For five years from the date this fireplace and components are first purchased for use, MHSC will, at its option, repair or replace any defective part of this fireplace or components, or refund to you a sum not to exceed the factory retail price in effect at the time of purchase.
