Majestic SB100HB Installation Manual

Installation Manual
Installation and Fireplace Setup
INSTALLER: Leave this manual with party responsible for use and operation. OWNER: Retain this manual for future reference.
This replace uses SL1100 Series Chimney
2” CLEARANCE TO COMBUSTIBLES AND BUILDING INSULATION FROM CHIMNEY REQUIRED.
NOTICE: DO NOT discard this manual!
SB100 SB100HB
WOODBURNING FIREPLACE
WARNING: If the information in these
instructions is not followed exactly, a re
or explosion may result causing property damage, personal injury, or death.
DO NOT store or use gasoline or other am- mable vapors and liquids in the vicinity of this or any other appliance.
DO NOT overre. Overring will void your
warranty.
• Comply with all minimum clearances to com­bustibles as specied. Failure to comply may cause house re.
WARNING
HOT SURFACES!
Glass and other surfaces are hot during operation AND cool down.
Hot glass will cause burns.
DO NOT touch glass until it is cooled
• NEVER allow children to touch glass
• Keep children away
• CAREFULLY SUPERVISE children in same room as replace.
• Alert children and adults to hazards of high temperatures.
High temperatures may ignite clothing or other ammable
materials.
• Keep clothing, furniture, draperies and other ammable
materials away.
Installation and service of this appliance should be performed by
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
WARNING
Fire Risk.
For use with solid wood fuel only.
Other fuels may overre and generate poisonous gases (i.e. carbon monoxide).
1
Safety Alert Key:
DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE: Indicates practices which may cause damage to the replace or to property.
Table of Contents
1 Product Specic & Important Safety Information
A. Fireplace Certication 4 B. Non-Combustible Materials 4 C. Combustible Materials 4
2 Getting Started
A. Typical Fireplace System 5 B. Design and Installation Considerations 6
1. Selecting Fireplace Locations 6
2. Locating Fireplace & Chimney 7
C. Tools and Supplies Needed 8
D. Inspect Fireplace and Components 8 E. Fireplace System Requirements 8
3 Framing and Clearances
A. Fireplace Dimensions 9 B. Clearances 11
Minimum Clearances to Combustibles 11 C. Construct the Chase 12 D. Unpack the Refractory & Fireplace 13 E. Frame the Fireplace 14 F. Secure and Level the Fireplace 14 G. Protective Metal Hearth Strips 15 H. Outside Air Kit 16
4 Chimney and Termination Requirements
A. Chimney Requirements 18 B. Offsets/Returns 19 C. Termination Requirements 20
5 Chimney Installation
A. Typical Chimney System 21 B. Assemble Chimney Sections 22 C. Install Chimney Air Kit (optional) 22 D. Secure Offset/Return 23 E. Install Ceiling Firestops 23
F. Install Attic Insulation Shield 24 G. Roof Penetration 25 H. Install Chase/Chase Top 25 I. Termination Cap Requirements 26 J. Install Termination Cap 26
6 Shrouds
A. Radiation Shield 28
B. Field Constructed Shrouds 28
1. Open Top Shroud 28
2. Mailbox Style Shroud 29
3. Roofed Style Shroud 29
7 Finishing
A. Finishing Material 30 B. Hearth Extension, Building and Finishing 31
1. Fireplace Installed Flush on the Floor and Hearth Extension Raised to Bottom of Firebox Opening 32
2. Raised Hearth Extension and Raised Fireplace 33
3. Fireplace Opening and Hearth Extension Flush
with the Floor 34 C. Non-Combustible Sealant Material 34 D. Mantel and Wall Projections 35 E. Sidewalls/Surrounds 36
8 Fireplace Setup
A. Install Refractory 37 B. Gas Log/Lighter Provision 39 C. Wood Burning Inserts 39
9 Reference Materials
A. Chimney Components 40 B. Optional Components 43
2
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
ATTENTION INSTALLER:
Follow this Standard Work Checklist
This standard work checklist is to be used by the installer in conjunction with, not instead of, the instructions contained in this installation manual.
Customer: Lot/Address
Model (circle one): SB100
Date Installed: Location of Fireplace: Installer: Dealer/Distributor Phone # Serial #:
WARNING! Risk of Fire or Explosion! Failure to install fireplace acording to these instructions can lead to a fire or explosion.
Fireplace Install
Verified that the chase is insulated and sealed. (Pg. 11) Verified clearances to combustibles. (Pg. 10) Fireplace is leveled and secured. (Pg. 13) Protective hearth strips installed per manual requirements. (Pg. 14) Hearth extension size/height decided. (Pg. 30) Outside air kit installed. (Pg 15)
Chimney
Chimney configuration complies with diagrams. Chimney installed, locked and secured in place with proper clearance. Chimney air kit installed. Firestops installed. Attic insulation shield installed. Roof flashing installed. Termination installed.
Shrouds Section 6 (Pg. 27)
Shroud is installed properly per instructions.
Section 4 & 5 (Pg. 17)
YES IF NO, WHY?
Finishing
Combustible materials not installed in non-combustible areas. Verified all clearances meet installation manual requirements. Mantels and wall projections comply with installation manual requirements. Hearth extension installed per manual requirements.
Fireplace Setup
All packaging and protective materials removed. Molded brick panels installed correctly.
Grate is properly installed. Firescreen installed properly. Optional doors properly installed. Manual bag and all of its contents are removed from the fireplace and given to the party responsible for use and operation.
Hearth & Home Technologies recommends the following:
• Photographing the installation and copying this checklist for your file.
• That this checklist remain visible at all times on the fireplace until the installation is complete.
Comments: Further description of the issues, who is responsible (Installer/Builder/Other Trades, etc.) and corrective action needed:
Comments communicated to party responsible
Section 7 (Pg. 29)
Section 8 (Pg. 36)
__________________________ by ______________________on _________ (Builder/Gen. Contractor) (Installer) (Date)
4013-305 • Rev B • 3-17-16
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
3
Product Specic & Important Safety Information
1
A. Fireplace Certication
This replace system has been tested and listed in accor­dance with UL 127 standards by Underwriters Laborato­ries Inc. for installation and operation in the United States.
This replace may be installed in sleeping rooms. This replace is not approved for manufactured housing. If in­stalled with a gas log set, provisions for the National Fuel Gas Code must be met.
This replace has been tested and listed for use with the optional components specied in this manual. These optional components may be purchased separately and installed at a later date. An outside air kit, gas insert, gas log set or gas log-lighter should be installed at the time of replace installation.
WARNING! Risk of Fire! Hearth & Home Technologies disclaims any responsibility for, and the warranty and agency listing will be voided by the following actions.
DO NOT:
• installoroperatedamagedreplace
• modifyreplace
• install other than as instructed by Hearth & Home Technologies
• operate the fireplace without fully assembling all components
• overre
• install any component not approved by Hearth & Home Technologies
• install parts or components not Listed or approved
Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. For
assistance or additional information, consult a qualied
installer, service agency or your dealer.
B. Non-Combustible Materials
• Materials which will not ignite and burn, composed of any combination of the following:
- Steel - Iron
- Brick - Tile
- Concrete - Slate
- Glass - Plasters
• Materials reported as passing ASTM E 136, Standard
Test Method for Behavior of Metals, in a Vertical Tube
Furnace at 750° C
C. Combustible Materials
• Materials made of or surfaced with any of the following materials:
- Wood - Compressed paper
- Plant bers - Plastic
- Plywood/OSB - Sheet rock (drywall)
• Any material that can ignite and burn; ame proofed or not, plastered or un-plastered
4
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
Getting Started
2
A. Typical Fireplace System
Additional lateral support for chimney above roof (or enclosed in chase) if needed
Non-combustible roof flashing maintains minimum clearance around chimney
Support straps on rafter support chimney
Termination cap
Storm Collar
Chimney penetrates roof preferably without affecting roof rafters
Offset & Return (with hanger straps)
Ceiling firestop on floor of attic
Chimney system
Combustible framing/header on top of V-shaped standoffs
Outside combustion air
Protective metal hearth strip(s)
Attic insulation shield must be used here to keep insulation away from chimney if attic is insulated
Framing headed off in ceiling joists
)
)
))
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
Enclosed space above and around fireplace
Mantel and surround
Decorative facing and trim
Hearth extension
Factory-built fireplace
Figure 2.1 Typical Fireplace System
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
5
B. Design and Installation Considerations
NOTICE: Check building codes prior to installation.
• Installation MUST comply with local, regional, state and national codes and regulations.
• Consult insurance carrier, local building inspector, re ofcials or authorities having jurisdiction over restrictions, installation inspection and permits.
Before installing, determine the following:
- Where the replace is to be installed.
- The vent system conguration to be used.
- Gas supply piping.
- Electrical wiring.
- Framing and nishing details.
- Whether optional accessories - devices such as a
fan, wall switch or remote control - are desired.
1. Selecting Fireplace Locations
This replace may be used as a room divider, installed along a wall, across a corner or used in an exterior chase. See Figure 2.2.
Locating the replace in a basement should be avoided. Locating near frequently opened doors, central heat outlets or returns, or other locations of considerable air movement can affect the performance.
Consideration should be given to these factors before deciding on a location.
NOTICE: In addition to these framing dimensions, also
reference the following section:
• Clearances (Section 3).
NOTICE:
• Illustrationsandphotosreecttypicalinstallationsand
are FOR DESIGN PURPOSES ONLY.
• Illustrations/diagrams are not drawn to scale.
• Actual installation/appearance may vary due to individual design preference.
• Hearth & Home Technologies reserves the right to alter its products.
NOTICE:
A minimum 1-1/2 in. air clearance at the back and a minimum 1-1/2 in. air clearance to the sides of
thereplaceassemblymustbemaintained.
Chimney sections at any level require a 2 in. minimum air space clearance between the framing and chimney sec­tions.
24-3/8 in. (619 mm)
52-1/2 in.
(1334 mm)
As a room
divider
(1972 mm)
48 in.
(1219 mm)
(610 mm)
74-1/4 in.
(1886 mm)
61-5/8 in.
(1565 mm)
104-7/8in. (2664 mm)
77-5/8 in.
24 in.
Across a
corner
30-1/2 in.
(775 mm)
77-5/8 in.*
(1972 mm)
In an exterior chase
or projecting into a
garage
Along a wall
77-5/8 in.
(1972 mm)
24 in.
(610 mm)
30-1/2 in. (775 mm)
30-1/2 in. (775 mm)
Note:
1-1/2 in. (38 mm) min. distance from sides & back of fireplace to combustible materials. 1/2 in. (13 mm) min. at nailing flanges.
*
8 in. (203 mm) extra space included (both sides) for outside air connection. If outside air duct has no bend, this dimension may be reduced as long as minimum clearances are met.
1/2 in. (13 mm) all configurations
Figure 2.2 Fireplace Locations
6
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
2. Locating Fireplace & Chimney
Location of the replace and chimney will affect perfor­mance.
• Install within the warm airspace enclosed by the building envelope. This helps to produce more draft, especially during lighting and die-down of the re.
• Installing the replace in a basement is not recommended.
• Penetrate the highest part of the roof. This minimizes the effects of wind loading.
• Locate termination cap away from trees, adjacent structures, uneven roof lines and other obstructions.
• Minimize the use of chimney offsets.
• Consider the replace location relative to oor and ceiling and attic joists.
• Take into consideration the termination requirements in Sections 4 and 5.
Multi-level Roofs
Recommended Location:
Recommended Location:
• Above peak
• Above peak
• Inside heated space
• Install the outside air kit with the intake facing prevailing winds during the heating season.
• Ensure adequate outdoor air for all combustion appliances and exhaust equipment.
• Ensure furnace and air conditioning return vents are not located in the immediate vicinity of the replace.
• Avoid installing the replace near doors, walkways or small isolated spaces.
• Recessed lighting should be a “sealed can” design.
• Attic hatches weather stripped or sealed.
• Attic mounted duct work and air handler joints and seams
taped or sealed.
Location NOT recommended:
• Not the highest point of the roof
• Wind loading possible
Recommended:
• Insulated exterior chase
Windward
Figure 2.3 Recommended Chimney Locations
Marginal Location:
• Below peak
in cooler climates
Not recommended in basement due to high negative pressure concerns that effect draft
Marginal Location:
• Wind loading possible
Location NOT recommended:
• Too close to tree
• Below adjacent structure
• Lower roof line
• Avoid outside wall
Leeward
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
7
C. Tools and Supplies Needed
Before beginning the installation be sure the following tools and building supplies are available:
Reciprocating saw Framing material
Pliers Non-combustible sealant
Hammer Gloves
Phillips screwdriver Framing square
Flat blade screwdriver Electric drill and bits
Plumb line Safety glasses
Level Tape measure
1/2-3/4 in. length, #6 or #8 self-drilling screws
Misc. screws and nails
D. Inspect Fireplace and Components
WARNING! Risk of Fire and/or Explosion! Damaged parts could impair safe operation. DO NOT install dam­aged,incompleteorsubstitutecomponents.Keepre­place dry.
E. Fireplace System Requirements
The HHT replace system requirements consist of the following:
• Fireplace
- Refractory (included with replace)
- Firescreen (included with replace)
- Grate (included with replace)
- Hearth Extension (required, sold separately)
• Outside Air System
- Air Inlet Hood (included with replace)
- Flex (required, sold separately)
• Chimney System
- Attic Insulation Shield (included with replace)
- Chimney termination cap (required, sold separately)
• Non-combustible nish material
• Remove replace and components from packaging and inspect for damage.
• Vent system components and doors are shipped in separate packages.
• Report to your dealer any parts damaged in shipment.
• Read all the instructions before starting the installation. Follow these instructions carefully during the installation to ensure maximum safety
and benet.
8
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
Framing and Clearances
Knockout
9 7/8 in.
[251 mm]
3
A. Fireplace Dimensions
20 3/4 in.
(527 mm)
11 5/8 in.
(295 mm)
Outside
Air
[1791 mm]
70 1/2 in.
60 1/4 in.
Gas
Knockout
[1530 mm]
[1381 mm]
54 3/8 in.
[251 mm]
9 7/8 in.
10 1/2 in.
[375 mm]
14 3/4 in.
19 in.
[483 mm]
[267 mm]
41 5/8 in.
(1057 mm)
29 1/2 in.
(749 mm)
60 5/8 in.
(1540 mm)
[1730 mm]
68 1/8 in.
(effective height)
Outside
Air
Gas
33 in.
[838 mm]
50 in.
8 3/4 in.
[375 mm]
14 3/4 in.
10 1/2 in.
[1270 mm]
[222 mm]
[267mm]
19 in.
[483 mm]
Figure 3.1 Fireplace Dimensions
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
9
Contour Front Dimensions
NOTE: CONTOUR FRONTS MUST BE INSTALLED BEFORE APPLYING ANY FINISHING MATERIALS
Figure 3.2 Contour Front Dimensions
10
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
B. Clearances
WARNING! Risk of Fire!
You must comply with all minimum air space clearances tocombustiblesasspeciedin Figure3.3.DO NOT pack required air spaces with insulation or other materials.
Framing or nishing material used on the front of, or in frontof,thereplacecloserthantheminimumslistedmust
be constucted entirely of non-combustible materials (i.e., steel studs, concrete board, etc.). Failure to comply may
causere.
Storm Collar
Roof Flashing
Minimum Clearances to Combustibles
WITHIN ENCLOSURE AREA
Fireplace to backwall 1-1/2 in. (38 mm)
Fireplace to sidewall 1-1/2 in. (38 mm)
Top standoffs to header 0 in. (0 mm)
Door opening to sidewall 24 in. (610 mm)
MANTEL
Mantel minimum height 20 in. (508 mm)
above opening
Maximum mantel depth 12 in. (305 mm)
(roof)
0 in. to level
of standoffs
(attic)
Ceiling Firestop
2 in. min.
(51 mm)
2 in. min.
(51 mm)
2 in. min.
(51 mm)
2 in. min.
(51 mm)
Ceiling Firestop
(ceiling)
2 in. min.
(51 mm)
(ceiling)
2 in. min.
(51 mm)
Must have 2 in. (51 mm)
1-1/2 in. (38mm) from
back of appliance
1-1/2 in. (38mm) from
side of appliance
(except at nailing flanges
where it is 1/2 in. (13 mm)
Attic
Insulation
Shield
Offset/Return with
hanger straps
minimum clearance
to header
0 in.
from floor
Figure 3.3 Clearances to Combustible Materials
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
11
C. Construct the Chase
A chase is a vertical boxlike structure built to enclose the replace and/or its vent system. Vertical chimneys that run on the outside of a building must be installed inside a chase.
In cold climates, Hearth & Home Technologies recom­mends that the chase be well insulated using batt type in­sulation between the joists.
Construction of the chase may vary with the type of build­ing. These instructions are not substitutes for the require­ments of local building codes. Local building codes MUST be checked.
Chases should be constructed in the manner of all outside walls of the home to prevent cold air drafting problems. The chase should not break the outside building envelope in any manner. All outer walls need to be insulated.
Building codes require false ceiling and ceiling restops/ attic shields at each oor of the chase or every 10 ft (3048 mm) of clear space to control spread of re.
Walls, ceiling, base plate and cantilever oor at the rst level of the chase should be insulated (see Figure 3.3.) Vapor and air inltration barriers should be installed in the chase as per regional codes for the rest of the home. Ad­ditionally, Hearth & Home Technologies recommends that the inside surfaces be drywalled and taped (or the use of an equivalent method) for maximum air tightness.
Holes and other openings should be caulked with high temperature caulk or stuffed with unfaced ber glass
insulation.
WARNING! You must install false ceilings and ceil-
ing restops at each oor of the chase or every 10 ft (3.05 m) to control spread of re.
Round Termination Cap
Metal Chase Top
Tabs
Insulation
False Ceiling
Figure 3.4 Chase Assembly
WARNING! Risk of Fire!
Storm Collar
Ceiling
Firestop
False Ceiling
Insulation
Insulation
False Ceiling
Chimney
Attic
Shield
Ceiling
Firestop
Insulation in the
outside walls
of the chase
You must maintain a mini­mum 2 in. (51 mm) air space clearance to insula­tion and other materials surrounding the chimney system.
• Insulationandothermaterialsmustbermlysecuredto
prevent accidental contact with chimney system.
• The chase must be properly blocked to prevent blown
insulation or other combustibles from entering and
makingcontactwithreplaceorchimney.
• Failure to prevent contact between insulation or other
materials and chimney system may cause overheating
andre.
WARNING! Risk of Fire! DO NOT sealareabetweenre
stop opening and chimney pipe except where they enter the attic or leave the warm air envelope of the home (use 600° F sealant).
• The chase is constructed using framing materials much the same as the walls in your home. A variety of siding materials may be used including brick, stone, veneer brick, or standard siding materials.
• In constructing the chase, several factors must be considered:
- Maintain a 2 in. (51 mm) air space around the
chimney.
- The chase top must be constructed of non-
combustible material.
- In cold climates, a restop spacer and attic insulation
shield should be installed in an insulated false ceiling at the 8 ft. (2438 mm) level above the replace assembly. This reduces heat loss through the chase.
- In cold climates, the walls of the chase should be
insulated to the level of the false ceiling as shown in Figure 3.4. This will help reduce heat loss from the home around the replace.
12
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
Three examples of chase applications are shown in Fig­ure 3.5.
1. Fireplace and chimney enclosed in an exterior chase.
2. Chimney offset through exterior wall and enclosed in chase.
3. Chase constructed on roof.
All outside walls should be insulated.
1 2 3
Figure 3.5 Chase Constructions
D. Unpack the Refractory & Fireplace
• Remove back refractory from outside of replace by
bending tabs up and lifting refractory out of brackets. See Figure 3.6.
• Bend tabs back down out of the way. See Figure 3.7.
• Do not remove screws or refractory brackets from
replace. If refractory brackets must be removed, ll holes in outer shell with screws.
• Repeat this process to remove side refractories.
Figure 3.6 Unpack Back Refractory
Remove hearth stone by removing three corrugated shipping spacers (Figure 3.9). Lift hearth stone out of replace. See Figure 3.10.
Figure 3.9 Shipping Spacers
Figure 3.10 Lifting Out Hearth Stone
Figure 3.7 Bend Refractory Brackets Back Down
• Remove screens by removing screw from end of each screen rod.
• Remove replace from pallet:
- Remove screws from shipping brackets and pallet. (Figure 3.11)
- Replace screws removed from replace.
- Brackets can be used to anchor replace in position.
Figure 3.11 Removing Shipping Brackets
Figure 3.8 Remove Screen Rods
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
13
E. Frame the Fireplace
NOTICE: Hearth extension design must be determined before installation of replace.
CAUTION! Risk of Cuts/Abrasions. Wear protective gloves and safety glasses during installation. Sheet metal edges are sharp.
If the replace is placed on the oor the maximum height of a nished raised hearth is 8-3/4”, if you want a higher raised hearth the replace must be placed on a platform.
WARNING! Risk of Fire! Comply with all minimum clear-
ancesspecied.
A minimum 1-1/2 in. (38 mm) air clearance must
be maintained at the back and 1-1/2 in. (38 mm)
to the sides of the replace assembly.
• Chimney sections at any level require a 2 in. (51 mm) minimum air space clearance between the framing and chimney section.
WARNING! Risk of Fire! You must comply with all minimum air space clearances to combustibles. DO NOT pack required air spaces with insulation or other materi­als.
Figure 3.12 shows a typical framing (using 2 x 4 lumber) of the replace, assuming combustible materials are used. All required clearances to combustibles around the replace must be adhered to. See Figure 3.2. Any framing across the top of the replace must be above the level of
the top standoffs.
F. Secure and Level the Fireplace
This replace may be placed on either a combustible or noncombustible continuous at surface. Follow the instructions for framing in Section 3. Slide the replace
into position. Be sure to provide the minimum 1-1/2 in.
air clearance at the sides and 1-1/2 in. at the back of the replace.
The replace should be positioned so the face of the non­combustible material on the replace will be ush with the face of the drywall on the walls.
Level the replace and shim as necessary.
WARNING! Risk of Fire! Prevent contact with sagging, loose insulation.
DO NOT install against vapor barriers or exposed insulation.
• Secure insulation and vapor barriers.
• Provide minimum air space clearances at the sides and
backofthereplaceassembly.
The
nished cavity depth must be no less than 30-1/2 in. (772 mm) from the nished backwall to the outside of front wall framing.
DO NOT install header until the replace is in position.
17 in. (368 mm) framing.
Header will sit on top of front stand offs after fireplace is installed.
30 1/2 in.*
(772 mm)
* If interior of chase will be drywalled, add the thick­ness to this measurement.
61 5/8 in.
(1565 mm)
Fireplace must be set out
1/2 in.
(13 mm)
Use only non-combustible material below the top of the front standoffs.
8 in. (203 mm) extra space needed (both sides) for outside air connection. If outside air duct has no bend, this dimension may be reduced as long as minimum clearances are met.
1/2 in. (13 mm) in front of the face of the framing material.
Figure 3.12 Framing the Fireplace
14
Majestic Biltmore Series • SB100 • 4013-303 Installers Manual • Rev E • 09/17
Loading...
+ 31 hidden pages