This appliance is a HEATING appliance and it becomes very hot when in operation.
UNDER ANY CIRCUMSTANCES, DO NOT PLACE any object, furniture, draperies or other
item LESS THAN 36 inches (0.9 m) IN FRONT OF THE FIREPLACE.
CHILDREN and PETS
Radiant heat can heat surfaces such as the hearth in front of the replace to temperatures
that, although approved safe, can be quite uncomfortable to touch or step on—particularly
for children and pets. Children and pets should always be supervised when in the room
where the appliance is located. Remote control handset should be kept out of reach of
children. In the presence of children, we STRONGLY RECOMMEND that you install in front
of the replace: a re screen, doors or, to protect young toddlers, a “hearth gate”—see
Options on page 41.
HOT SURFACES
Be aware that, although safe, some combustible materials and nishes, even though
installed at listed clearances may, over time, discolor, warp or show cracks. The 1200DV
requires the installation of the cement board provided with the engine.
Convective heat will exit the unit and travel up the wall surface if not impeded. Protruding
mantels and projections can help direct the heat away from the wall. AVOID PLACING heat
sensitive items such as televisions, paintings, decorations, etc. above replaces or near the
edge of protrusions unless appropriate.
The information contained in this installation manual is believed to be correct at the time of printing.
Miles Industries Ltd. reserves the right to change or modify any information or specications without
notice. Miles Industries Ltd. grants no warranty, implied or stated, for the installation or maintenance
of your heater, and assumes no responsibility for any consequential damage(s).
We recommend that our gas
hearth products be installed and
serviced by professionals who
Spare Parts ...................................................................................................43
3
Safety and Warning Information
READ and UNDERSTAND all instructions carefully
before starting the installation. FAILURE TO FOLLOW
these installation instructions may result in possible re
hazard and will void the warranty.
Prior to the rst ring of the replace, READ the
Owner’s Information Section of this manual.
DO NOT USE this appliance if any part has been under
water. Immediately, CALL a qualied service technician
to inspect the unit and to replace any part of the control
system and any gas control that has been under water.
THIS UNIT IS NOT FOR USE WITH SOLID FUEL.
Installation and repair should be PERFORMED by a
qualied service person. The appliance and venting
system should be INSPECTED before initial use and at
least annually by a professional service person. More
frequent cleaning may be required due to excessive
lint from carpeting, bedding, etc. It is IMPERATIVE that
the unit’s control compartment, burners, and circulating
air passageways BE KEPT CLEAN to provide for
adequate combustion and ventilation air.
Always KEEP the appliance clear and free from
combustible materials, gasoline, and other ammable
vapors and liquids.
NEVER OBSTRUCT the ow of combustion and
ventilation air. Keep the front of the appliance CLEAR
of all obstacles and materials for servicing and proper
operation.
Due to the high temperature, the appliance should
be LOCATED out of trafc areas and away from
furniture and draperies. Clothing or ammable material
SHOULD NOT BE PLACED on or near the appliance.
This unit MUST be used with a vent system as
described in this installation manual. NOOTHER vent
system or component MAY BE USED.
This gas replace and vent assembly MUST be vented
directly to the outside and MUSTNEVER be attached
to a chimney serving a separate solid fuel burning
appliance. Each gas appliance MUST USE a separate
vent system. Common vent systems are PROHIBITED.
INSPECT the external vent cap on a regular basis to
make sure that no debris is interfering with the air ow.
The glass door assembly MUST be in place and sealed
before the unit can be placed into safe operation.
DO NOT OPERATE this appliance with the glass door
removed, cracked, or broken. Replacement of the glass
door should be performed by a licensed or qualied
service person. DO NOT strike or slam the glass door.
The glass door assembly SHALL ONLY be replaced
as a complete unit, as supplied by the replace
manufacturer. NO SUBSTITUTE material may be used.
DO NOT USE abrasive cleaners on the glass door
assembly. DO NOT ATTEMPT to clean the glass door
when it is hot.
TURN OFF THE GAS BEFORE servicing this
appliance. It is recommended that a qualied service
technician perform an appliance check-up at the
beginning of each heating season.
Any safety screen or guard removed for servicing
MUST BE REPLACED before operating this appliance.
DO NOT place furniture or any other combustible
household objects within 36” of the replace front.
Children and adults should be ALERTED to the
hazards of high surface temperature and should
STAY AWAY to avoid burns or clothing ignition. Young
children should be CAREFULLY SUPERVISED when
they are in the same room as the appliance.
HOT SURFACES. Be aware that, although safe, some combustible materials and nishes, even though installed at
listed clearances may, over time, discolor, warp or show cracks. The 1200DV requires the installation of the cement
board provided with the engine.
Convective heat will exit the unit and travel up the wall surface if not impeded. Protruding mantels and projections
can help direct the heat away from the wall. AVOID PLACING heat sensitive items such as televisions, paintings,
decorations, etc. above replaces or near the edge of protrusions unless appropriate.
Radiant heat can heat surfaces such as the hearth in front of the replace to temperatures that, although approved
safe, can be quite uncomfortable to touch or step on—particularly for children and pets. Accessory screens and
guards will reduce the radiant heat on these surfaces.
4
Safety and Warning Information
Operating your replace for the rst time
When operating your new replace for the rst time, some vapors may be released due to the burning of curing
compounds used in the manufacture of the appliance. They may cause a slight odor and could cause the ames
to be the full height of the rebox, or even slightly higher, for the rst few hours of operation. It is also possible that
these vapors could set off any smoke detection alarms in the immediate vicinity. These vapors are quite normal on
new appliances. We recommend opening a window to vent the room. After a few hours use, the vapors will have
disappeared and the ames will be at their normal height.
State of California. Proposition 65 Warning.
Fuels used in gas, wood-burning or oil red appliances, and the products of combustion of such fuels, contain
chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. California
Health & Safety Code Sec. 25249.6.
State of Massachusetts Carbon Monoxide Detector/Vent Terminal Signage Requirements
For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used
in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where
the side wall exhaust vent termination is less than seven (7) feet above nished grade in the area of the venting,
including but not limited to decks and porches, the following requirements shall be satised:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal
vented gas fueled equipment, the installing plumber or gas tter shall observe that a hard wired carbon monoxide
detector with an alarm and battery back-up is installed on the oor level where the gas equipment is to be installed.
In addition, the installing plumber or gas tter shall observe that a battery operated or hard wired carbon monoxide
detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side
wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the
services of qualied licensed professionals for the installation of hard wired carbon monoxide detectors.
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic,
the hard wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent oor
level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply with the above requirements; provided, however, that during
said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance
with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certied.
3. SIGNAGE. A metal or plastic identication plate shall be permanently mounted to the exterior of the building at
a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally
vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch
in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not
approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage
installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.
5
Safety and Warning Information
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of
NFPA 54 as adopted by the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the
manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting system design or
venting system components with the equipment, the instructions provided by the manufacturer for installation of the
equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the
manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts
for venting the ue gases, but identies “special venting systems”, the following requirements shall be satised by
the manufacturer:
1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation
instructions; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall
include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment,
all venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with
the appliance or equipment at the completion of the installation.
6
Specications
Approval & Codes
This appliance is certied to ANSI Z21.88b-2008 / CSA
2.33b-2008 Vented Gas Fireplace Heater standard for
use in Canada and USA, and to CGA 2.17-91 High Altitude Standard in Canada. This appliance is for
direct vent installations.
This appliance complies with CGA P.4.1 Testing
method for measuring annual replace efciencies.
The installation must conform to local codes or, in the
absence of local codes, with the National Fuel Gas
Code, ANSI Z223.1 or the Natural Gas and Propane
Installation Code CAN/CGA-B149. Only qualied
licensed or trained personnel should install this
appliance.
This appliance must be electrically grounded in
accordance with local codes, or, in the absence of local
codes, with the National Electrical Code, ANSI/NFPA 70 or the Canadian Electrical Code, CSA C22.1.
Ratings
Model NP
GasNaturalPropane
Altitude (Ft.)*0-4,500 feet*
Input Maximum (Btu/h)36,00031,000
Input Minimum (Btu/h)15,00015,000
Manifold Pressure (in
w.c.)
Minimum Supply
Pressure (in w.c.)
Maximum Supply
Pressure (in w.c.)
Main Burner Injector
Marking
Pilot Injector Marking#62#30
Min. Rate By-Pass Screw#190#125
3.6”10.5”
5”11”
10”14”
Cat #
82-1200
92-360
Cat #
Supply Gas
Heater engine 1200EAN is used with natural gas.
Heater engine 1200EAP is used with propane gas.
The supply pressure must be between the limits shown
in the Ratings section above.
The supply connection is 3/8 inch NPT female and
located on the left hand side of the rebox.
X
Conversion Kits
The 1200 Ventana is supplied as natural gas or
propane gas and is eld convertible between fuels. See
instructions packaged with the conversion kit for further
information.
Electrical
The 1200 does not require an electrical power source
to operate as a heater. However, it requires electrical
power to operate its decorative hearth light.
*High Altitude Installations
Input ratings are shown in BTU per hour and are
certied without deration for elevations up to 4,500 feet
(1,370 m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA,
installations must be in accordance with the current
ANSI Z223.1 and/or local codes having jurisdiction.
Heating value of gas in some areas is reduced to
compensate for elevation—consult your local gas utility
to conrm.
For installations at elevations above 4,500 feet
(1,370 m) in Canada, please consult provincial and/or
local authorities having jurisdiction.
7
Overview
Fire On/Off
Wall Switch
(optional)
Remote
Handset
Wall Holder
Optional Doors and
Plates—see Options
Wall Finish
Mantel—See Mantel Clearances
Framing—See Framing
Cement Board
Decorative Light
Dimmer Switch
(not provided)
1200EAN
Non-combustible Hearth—
See Hearth Requirements
8
Combustible Floor
1/2” Insulation Board
When the appliance is installed
directly on carpeting, tile or other
combustible material other than
wood ooring, the appliance shall
be installed on a metal or wood
panel extending the full width
and depth of the appliance
Dimensions
43”
x
46-3/4”
Location
9
Combustible Mantel—Left Side View
Mantel Clearances
Mantel Projection
(from Face of Cement Board)
02” 4” 6” 8” 10” 12”
Ceiling
50”
45”
43”
41”
39”
Mantel
Height
(from
Bottom
of Unit)
36” Min. to Ceiling
Firebox Height
Face of
Cement Board
Fireplace
Opening
36”
33”
28”
10
Bottom of Unit
Left Side View
Mantel Clearances
Combustible Sidewall / Mantel Leg—Top View
Shading denotes
allowable location
for combustible
mantel legs
Face of
Cement
Board
Wall
FIREPLACE
Fireplace Opening
32-1/2”
1”
2”
3”
4”
5”
2” 1”4”5”3”
Min. 6”
between edge
of opening
and wall
Note
Right Side Clearances
are the same
Top View
11
Hearth Requirements
General Hearth Considerations
SAFETY WARNING! The Ventana is a very effective radiant heater. The hearth/oor in front of
the heater can get very hot (in excess of 200ºF). Locating the unit raised above the hearth/oor
or adding one of the optional screen fronts or a generic freestanding screen in front of the unit
can greatly reduce hearth temperatures. Any hearth within 4 inches of the base of the heater
must be constructed of non-combustible materials (see diagrams in the following pages). Note
that some materials, although safe can degrade due to heat—take this into consideration when
choosing materials.
When the appliance
is installed directly on
carpeting, tile or other
combustible material
other than wood ooring,
the appliance shall be
installed on a metal or
wood panel extending the
full width and depth of the
appliance
Top of Finished Hearth
Must Be Flush With
Bottom of Heater to
accommodate some
optional mantels and
trims. See Option section
towards the end of this
manual for optional
accessories.
NOTE:
• Unit will need to be raised
in almost every case to
accommodate hearth or
combustible ooring.
• Non-combustible hearth
required if bottom of
replace is less than 4” from
combustible oor in front.
12
Hearth Requirements
Rules
1. Any hearth/oor in front of replace within 4 inches of the bottom of the unit must be non-combustible and project
a minimum distance as shown on page 14. The hearth/oor must have a non-combustible nish applied over the 1/2 inch insulation board provided with the engine. This insulation board acts as a thermal break.
2. Minimum hearth projection is determined by a combination of the height of the hearth above the surface of
combustible oor or carpet and the distance between the hearth and the bottom of the replace.
3. Combustible baseboards (1 inch thick or less) located on the wall are acceptable provided they are located below
the base of the raised replace.
Unit Raised Above Combustible Hearth or Floor
Face of
Cement
Board
4” MIN.
Combustible
Floor
Base of Fireplace
Top Face of
Combustible
Floor or
Carpet
When the appliance is installed directly on
carpeting, tile or other combustible material
other than wood ooring, the appliance
shall be installed on a metal or wood panel
extending the full width and depth of the
appliance
13
Front of Fireplace
(Surface of Cement Board)
Min. Hearth Projection
Required to Protect
Combustible Floor
Surface of
Combustible
Floor or Carpet
Bottom of
fireplace
When using Optional Trims and
Mantels, Surface of Finished
Hearth Must Be Flush With
Bottom of Fireplace
(otherwise, optional trims will not fit)
Surface of Hearth
(non-combutible material on
non-combustible insulation board
see diagram below)
Wood is Allowed
Directly Below Fireplace
Raised 1”
above combustible floor
Raised 2”
above combustible floor
Raised 3”
above combustible floor
Raised 4”
above combustible floor
3”6”9”12”
4”
3”
2”
1”
Surface of
Combustible
Floor or Carpet
Bottom of
fireplace
Wood is Allowed
Directly Below Fireplace
Combustible
Floor Allowed
2 “
616STK/617STK
Leg & Hearth
Air Gap
Hearth Requirements
Unit With Site-Built Non-Combustible Hearth Extending
Example: If the replace is raised 2” above
combustible oor, the non-combustible- ushwith-bottom-of- replace hearth must project a
min. of 6” in front of the replace.
Non-combustible substrate
construction detail
Bottom of
Using 616/617STK Stone Trim Kits
fireplace
Wood is Allowed
Directly Below Fireplace
DO NOT FINISH ABOVE
THIS HEIGHT!
(Hearth MUST be at this height
when using certain accessories)
Non-Combustible
Finish
See Chart above for Required Projection
Surface of Combustible Floor or Carpet
1/2” Insulation
Board supplied
with fireplace
14
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