Rain Cap

Flashing Collar

Flashing

Roof Support

Attic Radiation Shield

6-1/2” Min.

(165mm) to ceiling

Firestop

68” Min.

(1727mm)

39” Min. (990mm)

u

Non-Combustible

 

Facing

uCombustibles are not allowed below top spacers above the fireplace. Facing in front of fireplace must be non-combustible below this area.

Figure 16

Central Forced Air Kit

Note: Not tested under EPA certification. If installed, this appliance no longer qualifies

for EPA certification.

The knock-outs provided on the back and on the sides of the Ladera™ fireplace allow the connection of insulated flexible pipe which enables you to heat adjacent rooms up to 50 feet from the fireplace hot air outlet.

The ducting system must be installed as described below:

A) Remove knock-out plate and cut insulation

the adaptor at the back and/or the side of the

fireplace. Fix the adaptor by twist-locking it

to the fireplace. You can use more than one

outlet on the fireplace (see Figure 17).

B) Attach the 5” flexible pipe, using the collars

provided. Important: Make sure that the

plastic wrapping around the flexible pipe

will not be in contact with the fireplace.

C) Route the flexible pipe to the chosen location.

The ducting system can be installed either

in an upper room or in a lower room.

D) Attach the flexible pipe to the blower, using

the collars (Figure 18).

E) Fix the back draft damper to the blower

outlet.

F) Attach a flexible pipe to the fan / flexible pipe

adapter (square to round) and stretch it up

to the location where the heat is required.

G) At that point, the flexible pipe can be attached

to any air distribution grill.

The duct system must be installed respecting the following:

1.Remove the plates closing up the 8” dia. holes on top of the fireplace. Then, cut the insulation in order to obtain two 8” dia. openings. Fix the adaptors on the fireplace openings by turning clockwise (Figures 14 and 15).

2.Maintain at least a 2” (50 mm) clearance between the ducts and any combustible material; the required hole size is 13” x 13” (330 mm x 330 mm).

Exception #1: For the grills, the fram- ing can be 10-3/4” x 10-3/4” (275 mm

x275 mm) to provide the clearance as required by the integral spacers on the double outlet duct system.

3.The maximum number of elbows in a run of duct is two.

4.Maintain at least 6-1/2” (160 mm) clearance from the outlet grill framing to a combustible ceiling, side wall, mantel or floor.

5.When traversing a combustible wall or floor,

afirestop must be installed at the wall or floor penetration. The hole size must be 13” x 13” (330 mm x 330 mm)

6.Do not connect the hot air ducts to a central heating system. Malfunction of the heating system’s blower will cause the fireplace to overheat. A furnace duct is only single wall and not double wall as is required for the Ladera™ fireplace hot air exhaust.

7.Use only Lennox Hearth Products grills and components as described in this manual. Other grills or registers, for example, may be too restrictive and may overheat the fireplace or ceiling.

8.Do not use insulated flexible ducts as they will overheat.

9.Do not use tees or any other components than the ones specifically listed here.

10.Never allow the ducting to pitch down as hot air will be trapped creating a fire hazard.

Never route the ducting downwards.

11.The hot air outlet grills must be installed with the louvers pointing downwards in order to prevent overheating adjacent ceilings.

H) Install the blower heating and cooling ther-

mostat (HCTW) in that part of the house to

be heated by the hot air duct. The thermostat

can be switched to a cooling thermostat and

installed in the same room as the unit. This

thermostat will turn on the blower when the

room where the fireplace is located becomes

too hot.

This option requires electricity. Make sure that the connections to the blower have been made according to the local codes and comply with their requirements (see instruction provided with the thermostat). For more information regarding central forced and ducting, refer to the BISFWK-1 installation sheet provided with the kit.

12

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.