Lennox Hearth Products BRENTWOOD LV Installation And Operation Instructions Manual Download Page 14

HOT AIR DUCTING INSTALLATION

Different hot air ducting systems can be installed 

with the Brentwood™ LV fireplace:

- Gravity kit

- Forced air kit

Gravity Kit

The gravity kit is designed for double hot air 

outlets and includes: (See

 Figures 20 and 21

)

  - 2 telescopic lengths  8” I.D.

  - 2  90º elbows  8” I.D.

  - 2 hot air outlet kits (grill and frames) 

  - 2 adaptors

See Gravity Kit Accessories on 

Page 24

.

The only blower that can be used with the gravity 

kit is the UZY6.
The gravity kit must be used with the clean face 

kit to allow hot air flow that would normally 

come out of the top louver. To do so, follow 

the steps below:

a)  Install the clean face kit making sure that 

the insulation strip is installed inside.

b) The fireplace façade can be covered with 

non-combustible material (

Figure 22

).

For safe installation, the gravity kit must meet 

the following requirements:

Minimum height*  68”  (1,727 mm)

Maximum length 

See

 

Figures 20 and 21

*  The height of the louver must be measured 

from the base of the Brentwood LV fireplace to 

the middle point of the louver.
To extend the double outlet system forward 

of the Brentwood LV fireplace (not flush), it 

will be necessary to purchase two adjustable 

lengths (H8951).  
When installing the double outlet system, the 

hot air outlets can be installed in the same room 

as the fireplace, or one or both of the outlets 

can be installed in adjacent or upper rooms.  

Installing the ducts at different elevations will 

tend to exhaust more heat out of the higher 

outlet (

Figure 21

).

Frame

Grill

Figure 20

WARNING:  Both pipes of 

the double hot air outlet 

must be installed. Any oth-

er installation may cause 

fire and void warranty.

 

6-1/2” Min. 

(to ceiling)

Figure 21

Figure 22

Flashing

Collar

Rain Cap

Roof Support

Attic Radiation

Shield

Radiation Shield (Firestop)

Non-Combustible

Facing

Maintain at least 6-1/2” 

(160 mm) clearance from 

the outlet grill framing to 

a combustible ceiling, 

side wall or mantel.

Outlet Grill

Outlet Grill

WARNING: The outlet grills 

should not be installed fac-

ing upward through a floor.  

Danger of burns can result 

if grills in floor are stepped 

on.

10’ 

(3.1m)

Max.

13” x 13”

(330mm x 330mm)

10’ (3.1m)

Max.

68” Min.

(1727mm)

45” Min.

(1143mm)

u

u

 

Combustibles are not allowed below top 

spacers above the fireplace. Facing in front 

of fireplace must be non-combustible below 

this area.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

14

Summary of Contents for BRENTWOOD LV

Page 1: ...The glass and surfaces of this appliance will be hot during operation and will retain heat for a while after shutting off the appli ance Severe burns may result Carefully supervise children in the sam...

Page 2: ...unat tended while it is burning WARNING Always ensure that the air inlet to the fireplace is free from debris and any other obstructions that can block the entrance of air WARNING Neither the manufac...

Page 3: ...nsult the local authorities to obtain your buildingpermitandcheckyourlocalbuilding codes Installthefireplaceonlyasdescribed in these instructions and using only IHP components This fireplace has been...

Page 4: ...terials may overheat the fireplace causing damage to the unit a fire or even possibly ignit ing a chimney fire if the chimney is creosoted Burningunapprovedfuel resultinginexcessive pollutantsbeingemi...

Page 5: ...ing to avoid smoking problems SMOKING CAUSES AND TROUBLESHOOTING Toreducethelikelihoodofsmokingwhenopen ing the door set the combustion air controls to the left before opening the door Your fireplace...

Page 6: ...ior to Cleaning The Chimney Before starting to clean your chimney we recommend that you remove the top baffle to avoid creosote dust collection at the top of the baffle Follow these steps to set the t...

Page 7: ...e door may need to be adjusted to be com pletelyairtight Thegaskets air tightnesscanbe adjustedusingtheadjustmentscrewlocatedon the right side of the fireplace facade An Allen key 1 8 not supplied wil...

Page 8: ...t is needed The Brentwood LV fireplace may be installed directly on the floor or on a raised base for proper guidelines refer to Hearth Extension Requirements and a minimum of 6 8 2 m measured from th...

Page 9: ...the clean face kit to allow hot air flow that wouldnormallycomeoutofthetoplouver ANY OTHER INSTALLATION MAY RESULT IN THE FIREPLACE OVERHEATING AND POTENTIALLY CAUSE A FIRE See Gravity Kit section on...

Page 10: ...place must be covered with a non combustible material tile marble stone etc See Figures 9 and 10 Cold climate INSTALLATIONS Climates where temperatures will fall below 32 F 0 C The heating performance...

Page 11: ...hoto graphs are not to scale consult installation instructions Product designs materials dimensions specifications colorsandpricesare subjecttochangeordiscontinuance without notice All framing dimensi...

Page 12: ...4 m Level Outside Base Insulation Thermal Barrier Solid Continuous Surface NOTE It is recommended that the chase walls and floor be insulated in the same manner using the same insulation as the rest...

Page 13: ...an not overlay on the fireplace front black steel faceofthefireplace seeFigures16and17 Non combustible materials such as brick stone or ceramic tile can project in front of and onto the fireplace faci...

Page 14: ...stem forward of the Brentwood LV fireplace not flush it will be necessary to purchase two adjustable lengths H8951 When installing the double outlet system the hotairoutletscanbeinstalledinthesameroom...

Page 15: ...henusing the double hot air outlet kit and blocking the upper louver of the fireplace CENTRAL FORCED AIR KIT NOT TESTED UNDER EPA CERTIFICATION The knock outs provided on the back and on the sides of...

Page 16: ...must not draw air from the attic from the basement or garage D The air intake should be installed where it is not likely to be blocked by snow or exposed to extreme wind and away from automobile exha...

Page 17: ...reasesthelikelihoodofoperatingproblemssuch as low draft high rate of creosoting and poor start up characteristics Exterior chimneys are also prone to down drafting and flow reversal Installations whic...

Page 18: ...en the roof and the flashing with roofing pitch see Figures 30 and 31 For sloping roofs place the flashing under the upper shingles and on top of the lower shingles Nail the flashing to the roof using...

Page 19: ...a plumb bob to line up the center of the hole Cut a hole for the chimney in the ceiling floor Frame this hole as described previously refer to section Chimney Instal lation Instructions 5 From below...

Page 20: ...13 16 122 mm 6 1 8 156 mm 11 280 mm 14 1 8 359 mm 16 7 8 429 mm 18 7 16 468 mm 23 584 mm 26 3 16 665 mm B 27 11 16 703 mm 33 1 2 851 mm 50 7 8 1292 mm 62 1 2 1588 mm 72 5 8 1845 mm 78 7 16 1992 mm 95...

Page 21: ...1 8 x 30 3 4 45 283 mm x 518 mm 11 1 8 x 20 3 8 S 2100 HT6000 AC 6 dia 30 327 mm x 881 mm 12 7 8 x 34 11 16 30 380 mm x 972 mm 15 x 38 1 4 Table 5 Figure 36 Drywall Insulated Wall Insulated Wall Radia...

Page 22: ...th the support CHIMNEY MODEL MAXIMUM HEIGHT OF SUPPORTED CHIMNEY OFFSET SUPPORT ROOF SUPPORT ASHT HT6103 6 dia 28 feet 8 54 m 29 feet 8 84 m S 2100 HT6000 6 dia 18 feet 5 49 m 20 feet 6 1 m AC 6 dia 4...

Page 23: ...ix it in place using the 3 metal screws supplied Figure 39 FIREPLACE 1 Clearance Insulated Elbow ASHT or HT6103 3 Screws Insulation Pad Cover High Temp Cement Firestop Tubinox or Projet SS Stainless S...

Page 24: ...26ZLA H8950 Adjustable length 8 dia 2 5 7B26ZL2A H8951 Length two 2 feet 8KL2 H8954 Length one 1 feet 8KL1 H8953 Wall radiation shield 8 I D 7B26ZR H8952 Optional installation accessories uNot tested...

Page 25: ...2324 31 Cast iron log retainer bar PR SR2323 Blower 250 CFM for central forced air kit BISZY BISZY Blower variable speed control with decora tive wall plate for BISZY VRUW VRUW Thermo disk on off blow...

Page 26: ...REPLACEMENT PARTS Brentwood LV 1 8 15 16 17 20 10 14 12 11 13 20 22 23 24 21 25 26 30 31 19 2 3 4 5 6 7 PA I N T 18 28 29 NOTE DIAGRAMS ILLUSTRATIONS ARE NOT TO SCALE 26...

Page 27: ...ated Wall Radiation Shield 30 6RSMI30 6RSMI30 Uninsulated Wall Radiation Shield 30 6RSM30 6RSM30 Attic Radiation Shield H0487 Roof Flashings Flat Roof Flashing 6FR 6FR 1 12 7 12 5 30 6FAR 6FAR 8 12 12...

Page 28: ...No 6 Length 6 Dia 6LL6 6LL6 12 Length 6 Dia 6LL12 6LL12 24 Length 6 Dia 6LL24 6LL24 36 Length 6 Dia 6LL36 6LL36 48 Length 6 Dia 6LL48 6LL48 Adjustable Length 7 to 11 6 Dia 6L7A 6L7A Split Base Tee 6...

Page 29: ...NOTES 29...

Page 30: ...se only parts sup plied from the manufacturer Normally all parts should be ordered through your IHP distributor or dealer Parts will be shipped at prevailing prices at time of order When ordering repa...

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