Page 2 - 24WBST Designer Woodburning Fireplaces; Safety Information; Description; disclaims; Drafts; framing the fireplace. The gas line must; Listed; Table of Contents
2 424WBST Designer Woodburning Fireplaces 87D1506 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 ...
Page 3 - 24WBST Fireplace Dimensions
3 424WBST Designer Woodburning Fireplaces 87D1506 424WBST Fireplace Dimensions Fig. 1 424WBST specifications and framing. 12” (305 mm) 9 56O ” (241 mm) 49 (6 ” (1267 mm) 36" (914 mm) Gas Line Access FP702A STR SPECS 9/24/98 added note 9/21/99 3/09 Outside Air 14 6 ” (372 mm) 20” (508 mm) 12...
Page 4 - 24WBST Woodburning Fireplace; hearth dimensions; Side Width; STR Parts ID
4 424WBST Designer Woodburning Fireplaces 87D1506 FP701a 424WBST Woodburning Fireplace Fig. 3 424WBST Parts Identification. A B FP1545 hearth dimensions 1/05 Front/Back Width Side Width A B 424WBST 29" 17 Z\, " (737 mm) (435 mm) FP1545 Fig. 3a Hearth dimensions. FP701a STR Parts ID Gas Line ...
Page 5 - Chase Installation
5 424WBST Designer Woodburning Fireplaces 87D1506 Chase Installation Insulation methods shown are optional for cold climate, not a requirement for unit operation. FP704 Fig. 4 Fireplace and chase parts identification. FP704STR (from FP528)7/28/98 Termination Cap Storm Collar Pan Flashing Draftstop F...
Page 6 - Chimney Requirements - Offset Installations; 0° elbow Offsets; Illustration Key; total; MBUF; OFFSET; RISE
6 424WBST Designer Woodburning Fireplaces 87D1506 Chimney Requirements - Offset Installations 0 0 0 0 0 3" 11" 1 0 0 0 0 8 Z\₄ " 20" 0 1 0 0 0 11 Z\₄ " 25 Z\₄ " 2 0 0 0 0 13 Z\₂ " 29 Z\₄ " 1 1 0 0 0 16 Z\₂ " 34 Z\₄ " 0 0 1 0 0 20 Z\₄ " 40 ³\₄ " 2 1 0 0...
Page 7 - Planning Information; Mounting the Fireplace; must; Planning the Chimney Run; Never; The Ten Foot Rule
7 424WBST Designer Woodburning Fireplaces 87D1506 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: The 424WBST model uses MHSC SK8...
Page 8 - Insulating Fireplace enclosure for Cold; If you live in a cold climate, it is not required but; Installation; Chimney Supports; Support
8 424WBST Designer Woodburning Fireplaces 87D1506 Insulating Fireplace enclosure for Cold Climates If you live in a cold climate, it is not required but highly recommended that you insulate fireplace enclosure to eliminate cold air penetration as much as possible.Insulate base of fireplace with a no...
Page 9 - Framing; Framing should be positioned to accommodate; Maintain; REPORT TO YOUR DEALERS ANY; Straight-Up Chimney Installation; 0° Offset Elbow
9 424WBST Designer Woodburning Fireplaces 87D1506 Framing Framing can be constructed before or after the fireplace is set in place, however, most installers build the frame before setting the fireplace.Frame fireplace with 2 x 4 lumber or heavier materi-als. Refer to framing dimensions in Figures 1,...
Page 10 - Ceiling Chimney Hole/; MODEL; Angle of Chimney at Ceiling; The; inside dimension; of the frame; must be; the same
10 424WBST Designer Woodburning Fireplaces 87D1506 Ceiling Chimney Hole/ Possible Obstructions The size of the hole in ceiling will vary with the angle at which the chimney passes through ceiling. Drive a nail up through ceiling at marked chimney cen-ter point. Go to floor above and see where hole w...
Page 11 - Securing the Fireplace; Safety strips are not required over non-com-; Outside Air Kit; MUST; be installed; BeFORe; the fireplace is enclosed.; Model STR
11 424WBST Designer Woodburning Fireplaces 87D1506 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 1 Z\₂ " (38 mm), al- lowing the remainder to extend in front of fi...
Page 12 - Installing the Chimney System; Make sure the; Installing the Firestop Spacer; A firestop spacer; Proper Firestop Spacer Installation; is; is not; elbow Strap
12 424WBST Designer Woodburning Fireplaces 87D1506 Installing the Chimney System Start by attaching the first chimney section to the collar on top of the fireplace. 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 sn...
Page 14 - Install Remainder of Chimney Sections; Ten Foot Rule; Installing Top Housing or Termination; Finishing; Do not; Front View; Air Space Clearances
14 424WBST Designer Woodburning Fireplaces 87D1506 Install Remainder of Chimney Sections Since you have already preplanned the height of your termination according to the Ten Foot Rule , continue to install pipe to the predetermined height.Check the chimney top installation instructions for details ...
Page 16 - Side Wall Protection; examples of wall shield insulation:; STR/CVR Side Wall clearances; Minimum Dimensions to Side Walls; Model
16 424WBST Designer Woodburning Fireplaces 87D1506 Side Wall Protection All joints (top, bottom and sides) where wall or deco-rative facing material meets fireplace surround must be completely sealed with a noncombustible material. (Figs. 20 and 24) The special wall shield design described in Figure...
Page 17 - Hearth Installation; or; a piece of; Minimum Wall Clearances
17 424WBST Designer Woodburning Fireplaces 87D1506 WARNINg: HeARTH eXTeNSION MUST Be IN-STALLeD IN ACCORDANCe WITH FIgUReS 24 AND 25. Alternate noncombustible materials may be used providing the (total) thermal resistance (Rt value) of the alternate material employed is greater than or equal to R = ...
Page 18 - To determine the thickness required for any; new; COMMON MATERIALS AND FACTORS; example for Common Brick; View A
18 424WBST Designer Woodburning Fireplaces 87D1506 example of Determining Hearth extension equivalents To determine the thickness required for any new mate- rial: COMMON MATERIALS AND FACTORS MATERIAL K* R MINIMUM THICKNESS EH2416 Common Brick 0.458 5.0 1.09 0.50 in.** 0.10 5.46 in.** (MHSC) R Value...
Page 19 - Installing Line for gas Logs; Local codes may require removal of flue damper; Fireplace Top View; WARNINg: DO NOT OPeRATe AN; If installing an unvented gas log set, refer to statement below:
19 424WBST Designer Woodburning Fireplaces 87D1506 Installing Line for gas Logs Monessen 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 Monessen fireplaces.) Be sure to have the app...
Page 20 - Damper Handle Push Nut
20 424WBST Designer Woodburning Fireplaces 87D1506 961 MHSC reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time, without notice. 5 1, 2, 3 4 6 7 a b c d 8 9 10 11 961 STR parts 5/16/00 djt 12 424WBST Woodburning Fireplace Re...
Page 21 - Gl; Accessories; Model Number
21 424WBST Designer Woodburning Fireplaces 87D1506 Gl ass Door Bi-Fold door set Brushed Brass finish 36GDKBB - 424WBST Black finish 36GDKBK - 424WBST Polished Brass finish 36GDKDP - 424WBST Pewter finish 36GDKS - 424WBST Outside Air Termination Completes connection from air kit to out-of-doors AK-MS...
Page 22 - Chimney Components
22 424WBST Designer Woodburning Fireplaces 87D1506 Chimney Components Round Top Termination Round termination to be used with SK8 chimney RLTSK8 system. (Flashing not included.) Long Round Top Round top to be used with a chase installation RLTSK8L Termination utilizing SK8 chimneysystem. Knock-down ...
Page 23 - FOR CANADIAN; Canada
23 424WBST Designer Woodburning Fireplaces 87D1506 Attic Insulation Shield Used to prevent insulation from coming in AIS-SK - SK8 contact with the chimney system. SK8 Chimney Sections Used to build chimney systems exposed above SK818CAN (1 Z\₂ ') SK8 roof. SK84CAN (4') SK8 45° Chimney Elbows Provide...
Page 24 - LIMITeD WARRANTY; Factory-Build Fireplace and Components; From the eleventh through the twenty-fifth year following the; What is Not Covered; ferentials produced by wind.; Limitations and exclusions; in connection with this fireplace and accessory.; MHSC
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 co...