BFC Balanced Flue (Closed Combustion) Heat-Circulating Fireplace Model: BFC36 Homeowner’s Installation and Operating Manual 647 BFC cover 8/18/00 djt For use in the U.S. / Canada Underwriter’s Laboratories Report No. MH7603 DO NOT DISCARD THIS MANUAL: Retain for future use. 7412647 5/12 Rev.
BFC36 Balanced Flue Heat-Circulating Fireplace Table of Contents Safety Information.......................................................................................3 Specifications and Framing .......................................................................4 Parts Identification .....................................................................................6 Chimney Requirements .............................................................................7 Planning Information...........
BFC36 Balanced Flue Heat-Circulating Fireplace 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. Consult local building codes to ensure that you are in Description compliance before installing the fireplace.
BFC36 Balanced Flue Heat-Circulating Fireplace BFC36 Balanced Flue Heat-Circulating Fireplace 6QE" (624mm) Rough 6M" Opening (197mm) Depth 5156QE" (1297mm) 56O" (13mm) 56O" (1 6 " 83 (1 4m 6m m m) ) Rough Opening Height 6Q E" 5 6" 5156QE" (1297mm) (9 18 m m ) " (610mm) 23" (584mm) Rough Opening Width 43" (1092mm) 56QE" (179mm) 56O" (902mm) 35" (889mm) Gas Line Access 3956M" (997mm) " 556QE" (246mm) (279mm) 1356O" Dia. (343mm) 11" Dia. (179mm) 8" Dia.
BFC36 Balanced Flue Heat-Circulating Fireplace Termination Cap Storm Collar Pan Flashing Batt Insulation (Cut out around firestop) Draftstop Firestop Ceiling Level Standoff Trim Ledge Standoff Surround Glass Door Gas Line Access Hole (Each Side) Romex Pigtail Gas Line Access Knockout (Each Side) Air Inlet Basket Grate Bottom Grille Top Grille and Air Outlet Metal Safety Strip(s) Shown not inplace (1,2 or 3 pieces) Nailing Flange FP554c Fig. 2 Fireplace and chase parts identification.
BFC36 Balanced Flue Heat-Circulating Fireplace Chimney Requirements - Offset Installations Offset CHIMNEY FLUE EXIT Rise Chimney Section B D E 6 FT. C G 30° Offset Elbow Rise Offset H 30° Return Elbow 30° Offset Elbow B FP282 30˚ Elbow Offsets MBUF 5/26/96 G TCS8A Support H Hearth Floor Example 1 Example 2 Notes: G + H cannot exceed 20 feet. Air Space Clearances: = 2” Min.
BFC36 Balanced Flue Heat-Circulating Fireplace 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. Mounting the Fireplace A fireplace may only be mounted on the following surfaces: 1. A flat combustible surface. 2. A raised wooden platform. 3. A concrete block or other solid object placed beneath each of the four (4) corners of the fireplace.
BFC36 Balanced Flue Heat-Circulating Fireplace Chimney Supports The chimney system is supported by the fireplace for vertical chimney heights less than 30’ (9m) above the hearth. Chimney supports are required if the vertical height exceeds 30’ (9m). Locate chimney supports at ceiling holes or other structural framing at 30’ (9m) heights. Spacing between chimney supports must not exceed 30’ (9m). Use Chimney Support Model TCS8A. (Note: The TCS8A cannot be mounted directly to the fireplace.
BFC36 Balanced Flue Heat-Circulating Fireplace Hard Flat Surface Insulation Platform FPC555a Fig. 7 Insulating between platform and fireplace. Framing FPC555a Framing can be constructed beforePlatform or after the fireplace insulation is set in place, however, most installers build the BFC model frame before setting the fireplace. 8/21/00 djt Frame fireplace with 2 x 4 lumber or heavier materials. Refer to framing dimensions in Figure 1 for basic fireplace specifications.
BFC36 Balanced Flue Heat-Circulating Fireplace Cutting the Hole Chimney Centerline Cover fireplace collar opening and cut proper sized chimney hole in chimney. Actual Centerpoint Framing the Ceiling Hole 8 6M" (222mm) Frame the ceiling chimney hole as shown in Figure 9. It is good practice to use framing lumber that is the same size as the ceiling joists; this is a requirement at attic level.
BFC36 Balanced Flue Heat-Circulating Fireplace 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” (38 mm), 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. 11) Metal Safety Strips (1,2 or 3 pcs.
BFC36 Balanced Flue Heat-Circulating Fireplace Installing the Chimney System Pipe Section Start by attaching the first chimney section to the collar on top of the fireplace. Pipe Rim UP Hem Install the pipe as pictured in Figure 13. 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.
BFC36 Balanced Flue Heat-Circulating Fireplace Firestop spacers are not available for, nor are they required on vertical walls. 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. Canadian Requirements for Insulation Shield A chimney support is 2¹⁄₂" (64 mm) long when installed. Consider this dimension when determining how many straight chimney sections are needed.
BFC36 Balanced Flue Heat-Circulating Fireplace Check the chimney top installation instructions for details on how high above the roof top the chimney sections (all pipes) should extend. Air Space Clearances Combustible framing material MUST NOT penetrate AIR SPACE (shaded areas). Installing Top Housing or Termination Follow the installation instructions provided with the MHSC chimney termination you have selected.
BFC36 Balanced Flue Heat-Circulating Fireplace Combustible Mantel Shelf and Trim 12" (305mm) Max. Finished Wall 1Z\x" (38mm) Stud 12" (305mm) Min. Standoff 6" (159mm) Min. Noncombustible Material Circulating Front Fireplace Opening Side View Z\x" 2 x 4 Stud Finished Wall Fireplace Front Must be sealed with noncombustible material FP531b Fig. 18 Mantel clearance. FP531b mantel clearances 9/03 djt Face Plate * 1Z\x" Ref. * 12” from top of grille opening. ** 6” from top of grille opening.
BFC36 Balanced Flue Heat-Circulating Fireplace Side Wall Protection Hearth Installation Adjacent combustible side walls that are within minimum dimensions shown in Figure 23 of the fireplace opening must be protected with a specifically built wall shield as described in Figure 17. A hearth extension is required to protect a combustible floor in front of the fireplace. Refer to Figure 20 for minimum dimensions and mounting detail. Note: Hearth Extension must not cover the air inlet opening of a fireplace.
BFC36 Balanced Flue Heat-Circulating Fireplace WARNING: Hearth extension must be installed in accordance with Figure 22 and must not cover the bottom front opening of the circulating model. 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 = 1.09 Thermal resistance (R) or thermal conductivity (K), may be obtained from manufacturer of the material. Factors are related by the formula K = 1/R.
BFC36 Balanced Flue Heat-Circulating Fireplace Operation Before the first fire, the location of the upper refractory baffle (ceiling panel) should be checked. This part floats intentionally and may move out of place during shipping or installation of the fireplace. If the baffle is out of place, the resulting improper air flow will cause dirty glass and improper combustion.
BFC36 Balanced Flue Heat-Circulating Fireplace 4 3 1 5 2 6 8 10 15 9 16 14 7 12 11 13 18 29 17 26 27 28 21 19 23 20 22 25 24 23 MHSC reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time, without notice. BFC Balanced Flue Fireplace Ref. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16.
BFC36 Balanced Flue Heat-Circulating Fireplace BFC Balanced Flue Fireplace Ref. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29.
BFC36 Balanced Flue Heat-Circulating Fireplace Accessories The following accessories for this appliance are available from your local MHSC 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.
BFC36 Balanced Flue Heat-Circulating Fireplace Chimney Components Component Description Model Number Chimney Support Used to support chimney for each of TCS8A 30’ vertical height and 6’ of angled chimney run (8” flue) Firestop Required at each floor level and attic on FS2A (8” straight flue) multi-story installation FS6A (8” 30° inclined flue) Attic Insulation Shield Required in Canada FS2100HT Traditional Top Housing Top housing of simulated brick pattern T20B available in red, tan
BFC36 Balanced Flue Heat-Circulating Fireplace 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.
MHSC 149 Cleveland Drive • Paris, Kentucky 40361 www.mhsc.
