Lennox Hearth CAMBRIA 850 - Manual (Page 3)

THE FIREPLACE
INTRODUCTION
The Cambria™ wood-burning fireplace is a
mid-efficient, heat radiating fireplace. You will
receive a lifetime of comfort and enjoyment
from your fireplace provided it is installed,
maintained and operated properly.
• Please read these instructions and retain
this manual for future reference.
• Before beginning the fireplace installation,
consult the local authorities to obtain your
building permit and check your local building
codes. Install the fireplace only as described
in these instructions and using only Lennox
Hearth Products components.
• These appliances are not approved for
Manufactured Home installations.
• When planning a fireplace installation the
following information must be determined
before beginning.
1. Where the fireplace is to be installed.
2. The configuration of the chimney.
3. Optional components installation (fan,
hot air ducting, etc).
4. Electrical wiring.
5. Framing and finish details.
PARTS REqUIRED
• Fireplace model: Cambria
• 10” diameter chimney - Model Secure Temp
ASHT+, or Nova Temp HT6103+ insulated stainless
steel chimney or 10” (AC) air-cooled manu-
factured by Security Chimneys International
only, including:
- Chimney lengths
- Elbows (where necessary)
- Associated components as per these
installation instructions
• Outside air kit (included)
TABLE OF CONTENTS
Safety Rules ......................................Page 2
Introduction ......................................Page 3
Parts Required .................................Page 3
Optional Equipment ...........................Page 3
Operating The Fireplace ....................Page 3
Fuel ...................................................Page 3
Combustion Control .........................Page 4
Refueling For Best Performance .......Page 5
Smoking – Causes And
Troubleshooting ..........................Page 5
Important Cautions ...........................Page 6
Maintaining Your Fireplace ...............Page 6
Creosote ............................................Page 6
Chimney Maintenance .......................Page 6
Dealing With A Chimney Fire .............Page 6
Disposing of Ashes ...........................Page 6
Door Finish Casing Care ....................Page 6
Refractory Replacement ....................Page 6
Door Installation ...............................Page 6
Door Adjustment ...............................Page 7
Glass Care .........................................Page 8
Gasket Replacement ........................Page 8
Andirons ...........................................Page 8
Fireplace Installation ........................Page 9
Locating The Fireplace ......................Page 9
Framing, Facing And Mantel ..............Page 10
Hearth Extension Requirements .......Page 10
Cold Climate Installations ..................Page 10
Framing Dimensions .........................Page 11
Insulated Chase Construction ...........Page 12
Nailing Flanges ..................................Page 12
Mantel and Facing .............................Page 12
Optional Fireplace Blower ..................Page 13
Hot Air Ducting Installation ..............Page 14
Gravity Kit .........................................Page 14
Outside Air Kit ..................................Page 16
Chimney System ...............................Page 17
Offset Chimney Installation ...............Page 20
Angled Wall Radiation Shield ............Page 22
Chimney Support Installation ............Page 22
Chimney Chase And
Multiple Terminations......................Page 22
Installation Accessories ....................Page 23
Chimney Components Lists ..............Page 23
Replacement Parts ............................Page 25
Specifications ....................................Page 25
Clearances ........................................Page 25
Product Reference Information .........Page 26
CONGRATULATIONS!
When you purchased your new fireplace, you joined the ranks of thousands of individuals
whose answer to their home heating needs reflects their concern for aesthetics, efficiency
and our environment. We extend our continued support to help you achieve the maximum
benefit and enjoyment available from your new fireplace.
Thank you for selecting a Lennox Hearth Products fireplace as the answer to your home
supplemental heating needs.
OPTIONAL EqUIPMENT
• 5” flexible venting system (central forced
air kit) (see section 3.5.2)
• UZY5 blower. The blower installation re-
quires that an electrical connection of a 120v
electrical box located outside the fireplace
be made prior to moving the fireplace in its
final position. (see Optional Fireplace Blower
on Page 13)
• Gravity venting system (see Central Forced
Air Kit on Page 15)
OPERATING THE FIREPLACE
Fuel
USE SOLID NATURAL WOOD FUEL ONLY. The
Cambria fireplace is designed to work best when
fueled with seasoned cordwood. Hardwoods are
preferred to softwoods since the energy content
of wood is relative to its density. Hardwoods will
result in a longer burning fire and less frequent
refuelling. A moisture content of 15% to 20%
(seasoned) is recommended. Wood that has
been cut and split and let to dry under a cover for
a period of one year will usually meet that criteria.
The required drying time will vary depending on
the climate. Wood that is packed tight together
will take longer to dry. Seasoned wood is darker
in color than wet wood and will have visible cracks
in the grain on the ends. Excessively wet wood
will be difficult to burn and will result in lower ef-
ficiency, increased creosoting and deposits on the
glass and in the chimney. Excessively dry wood
will burn well but will also have higher emissions
and shorter burning time.
Do not burn scrap or garbage, treated wood or
wood such as driftwood from the ocean which
has been exposed to salt or other chemicals.
Salt or chemicals can corrode the firebox and
chimney. Do not burn large amounts of paper,
cardboard, Christmas tree branches or building
construction materials. Intense firing with these
materials may overheat the fireplace, causing
damage to the unit, a fire or even possibly ignit-
ing a chimney fire if the chimney is creosoted.
Burning unapproved fuel, resulting in excessive
pollutants being emitted, may be prohibited and
subject to a fine or other penalty by the authority
having jurisdiction in your area.
Processed firelogs can be used. Use only fire-
logs that have been evaluated for the application
of fireplace and refer to firelog warnings and
caution markings on packaging prior to use.
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