Amesti R 450 User manual

IMPORTANT: IF YOU HAVE A PROBLEM WITH THIS UNIT DO NOT RETURN IT TO THE DEALER.
CONTACT TECHNICAL SUPPORT
800-444-6742.
Questions? www.amesti.cl, [email protected]
U.S. ENVIROMENTAL PROTECTION AGENCY
Certified to comply with July 1990, Particulate emission standards.
Tested to UL 1482 - 2000 / ULC S627 - 2000
OWNER’S MANUAL
MODEL NUMBER: AMESTI R 450
Thank you for purchasing this product from a fine line of
heating equipment, from Chile, the land of fire. We wish
you many years of safe heating pleasure with your new
heating appliance.
Save these Instructions.
AMESTI LTDA
Address: Jose Miguel Carrera 6, Barrio Industrial Los
Libertadores, Colina, Santiago, Chile.

PLEASE NOTE THE FOLLOWING PRECAUTIONARY
STATEMENTS:
AMESTI’s Stove highly recommends the use
of smoke detectors and Carbon Monoxide
detectors with any hearth product, including
this unit. Follow all manufacturer’s instructions
when using smoke or Carbon Monoxide
detectors.
CAUTION:
This unit must be installed in accordance with these
instructions and must comply with local building and
fire codes. Failure to do so could result in a chimney
or house fire. Keep children, furniture, fixtures, and
all combustible materials away from any heating
appliance. Refer to this owner’s manual for all
clearances to combustible materials.
DO NOT INSTALLTHIS UNIT IN A MOBILE HOME!!!
DO NOT MODIFY THIS UNIT IN ANY WAY!!!
BEFORE INSTALLATION OF
YOUR APPLIANCE
1. HOT WHILE IN OPERATION. KEEP CHILDREN,
CLOTHING AND FURNITURE AWAY. CONTACT MAY
CAUSE SKIN BURNS.
2. DO NOT BURN GARBAGE OR FLAMMABLE
FLUIDS.
3. Check with the building inspector’s office for
compliance with local codes; a permit may be
required.
4. This room heater must be connected to (1) a listed
Type HT (2100°F) chimney per UL 103 or ULC S629,
or (2) a code-approved masonry chimney with a flue
liner. The chimney size should not be less than the
area of the flue collar, or more than three times greater
than the cross-sectional area of the flue collar.
5. A 6” diameter flue is required for proper
performance.
6. Always connect this unit to a chimney and NEVER
vent to another room or inside a building.
7. DO NOT connect to any duct work to which another
appliance is connected, such as a furnace.
8. DO NOT connect this unit to a chimney flue serving
another appliance.
9. DO NOT USE CHEMICALS OR FLUIDS TO START
THE FIRE.
10. The connector pipe and chimney should be
inspected periodically and cleaned if necessary.
11. Remember the clearance distances when you
place furniture or other objects within the area.
DO NOT store wood, flammable liquids or other
combustible materials too close to the unit.
12. Contact your local fire authority for information
on how to handle a chimney fire. Have a clearly
understood plan to handle a chimney fire. In the
event of a chimney fire, turn air control to a closed
position and CALL THE FIRE DEPARTMENT.
13. DO NOT tamper with the combustion air control
beyond normal adjustment.
14. Once the required draw is obtained, operate only
with doors closed; open doors slowly when re-fueling
(this will reduce or eliminate smoke from entering the
room).
15. DO NOT install these units in a mobile home or
trailer. These units are NOT mobile home approved.
16. Visit our web site at www.amesti.cl for helpful
information, frequently asked questions, parts/
accessory orders and more. Technical Support: 800-
444-6742.
OPERATION
WHY THE CORRECT FLUE SIZE
IS IMPORTANT: 6”
“Draft” is the force that moves air from the appliance
up through the chimney. The amount of draft in your
chimney depends on the length of the chimney, local
geography, nearby obstructions, and other factors.
Too much draft may cause excessive temperatures
in the appliance. An uncontrolled burn or a glowing
red part or chimney connector can indicate excessive
draft. Inadequate draft may cause back puffing into
the room and“plugging”of the chimney and/or cause
the appliance to leak smoke into the room through
appliance and chimney connector joints.
Today’s solid fuel appliances are much more efficient
than in the past. The units are designed to give you
controlled combustion, as well as maximum heat
transfer, using less fuel to do so.
The design of your new appliance is such that the
exhaust “smoke” is now at lower temperatures than
in the past, therefore requiring proper chimney size
to give adequate draft. If your chimney is too large,
the heating appliance will have a difficult time to
raise the“chimney flue”temperature to give adequate
draft, therefore causing a smoke back up, poor burn,
or both.
Should you experience such problems, call in a local
chimney expert.
CAUTION
IF YOU HAVE ANY DOUBT CONCERNING YOUR ABILITY TO COMPLETE YOUR INSTALLATION IN
A PROFESSIONAL-LIKE MANNER AFTER READING THESE INSTRUCTIONS, YOU SHOULD OBTAIN
THE SERVICES OF AN INSTALLER WHO IS VERSED IN ALL ASPECTS AS TO THE CORRECT AND SAFE
INSTALLATION. DO NOT USE TEMPORARY, MAKESHIFT COMPROMISES DURING INSTALLATION.
HOTWHILE INOPERATION. DONOTTOUCH. KEEPCHILDREN, CLOTHING,
AND FURNITURE AWAY. CONTACT MAY CAUSE SKIN BURNS. SEE
NAMEPLATE AND INSTRUCTIONS.
23
SAVE THIS MANUAL FOR FUTURE REFERENCE.
Read this entire manual before you install and use
your new room heater. If this room heater is not
properly installed, a house fire may result. To reduce
the risk of fire, follow the installation instructions.
Failure to follow instructions may result in property
damage, bodily injury, or even death.
IMPORTANT NOTICE:
This unit must be properly installed to prevent
the possibility of a house fire or “smoke-back”. The
instructions must be strictly adhered to. Do not
use makeshift methods or material which may
compromise the installation. Your unit requires
periodic maintenance and cleaning (refer to manual).
Failure to maintain your unit may lead to a variety
of problems, including but not limited to smoke
spillage into the home. Amesti will not be liable for
consequential or indirect damages to property or
persons resulting from the use of this product.
CAUTION

2. Flue Size
The proper flue size is determined by measuring the
inside diameter of the flue collar on the unit. This
stove is equipped with a six inch (6”) TOP EXHAUST
FLUE COLLAR. Therefore, the connector pipe should
be six inches (6”) and never less in diameter than the
collar on the stove.The area of the chimney liner must
also be equal to or greater than the area of the flue
collar on the stove. If the area of the flue is greater
than the collar, it should never be more than three
(3) times greater.
The black connector pipe should be 24 gauge steel
and 10.5” from a combustible wall or ceiling. This
clearance can be reduced to 10.0” if you are using a
double wall or shielded pipe. (See“C”in the clearances
diagrams on the following page)
3. Installation of a New Flue System
Note: Flue systems and flue pipe are not furnished
with the unit.
Masonry Flue: In the event that you plan to install or
have a system installed, there are several approaches
that you can take. In the middle and late seventies
masonry flue systems became very popular, and today
this type system is satisfactory. If you are considering
a masonry system, you should consult with your local
building officials for the proper procedures on this
type chimney. We recommend you consult with and
have your flue built by a licensed, bonded contractor.
Most masonry chimney systems are placed against an
outside wall and extend upward beside the house.The
flue thimble is then inserted through the wall, making
the connection with the stovepipe and the vertical
flue. Exercise extreme caution when drilling through
the wall -- you must maintain proper clearance
between the connecting liner and any combustible
material in the wall.
We also recommend you have a flue clean-out door
located at least two feet (2’) below your thimble for
easy cleaning of the system. This door should be
made as airtight as possible. It is the consumer’s
responsibility to ensure the chimney system is safe
and in good operating condition.
The manufacturer will not be held responsible for an
accident attributed to a unit connected to a faulty
chimney system.
INSTALLATION APPLICATIONS
Illustration 1
* IMPROPER INSTALLATION:
The manufacturer will not be held responsible for
damage caused by the malfunction of a stove due
to improper installation. Do not use makeshift
methods or material which may compromise
the installation. The manufacturer will not be
responsible for an accident caused by a unit
connected to a faulty flue system. AMESTI will not
be liable for consequential or indirect damages to
property or persons resulting from the use of this
product.
Call (800-444-6742) and/or consult a professional
installer if you have any questions.
With the door closed, the rate of burning is regulated
by the amount of air allowed to enter the unit through
the air control.With experience, you will be able to set
the control for heat and burning time desired.
Attempts to achieve higher output rates that exceed
heater design specifications can result in permanent
damage to the heater. The recommended wood load
is level with the top of the firebricks. Overloading may
prevent sufficient air entering the heater to properly
fuel the fire.
Do not tamper with the combustion air control
beyond the normal adjustment capacity.
Operate this heater only with the door closed, and
installed baffle.
ALWAYS PROVIDE A SOURCE OF FRESH AIR INTOTHE
ROOM WHERE THE UNIT IS INSTALLED. FAILURE TO
DO SO MAY RESULT IN AIR STARVATION OF OTHER
FUEL BURNING APPLIANCES AND THE POSSIBLE
DEVELOPMENT OF HAZARDOUS CONDITIONS.
THIS HEATER IS EXTREMELY HOT WHILE IN
OPERATION. SERIOUS BURNS CAN RESULT FROM
CONTACT. CAUTION SHOULD BE OBSERVED,
ESPECIALLY WHEN CHILDREN ARE PRESENT.
FLUE SYSTEM
1. Existing Flue System
If you have chosen a freestanding unit, this stove
is designed to connect to an existing flue system,
such as masonry or a pre-manufactured Class A
flue system. If you have a masonry flue system, the
inner liner should be inspected carefully for cracks;
if there is no liner in your chimney, we recommend
you install a steel liner or have one installed. If you
have an existing pre-manufactured system the inner
liner should be inspected for warping or buckling.
Either type chimney system should be thoroughly
cleaned before installing your new stove. We strongly
recommend you have a qualified chimney sweep
clean and inspect your entire system, as the sweep
can spot problems you might overlook. The sweep
in most cases can make any necessary repairs or
recommend a qualified person to do so. It is not
permissible to connect this unit to a chimney that is
servicing another unit.
45

linoleum, you must place protection between the
stove and the combustible material.
There are many floor and wall board manufacturers,
and you should be very cautious in choosing the
proper protection. The type board you choose should
be U.L. rated and listed. After examining the area you
plan to place your stove and determining it requires
a board, the next step is to select the proper size. The
stove you choose will determine the size board that
is required. The approved protector board should be
large enough to provide a minimum of eight inches
(8”) behind the unit, eight inches (8”) on either side
and sixteen inches (16”) in the front where the door is
located. Floor protection should also exist under the
chimney connector, and should extend two inches (50
mm) beyond each side of the chimney connector.
The type of board you choose must have an R-value
of 0.84 or equivalent.
Installation on a Concrete Floor
An appliance mounted on a concrete floor does not
require floor protection.
Carpeting and any other combustible material must
not cover the Floor Protector.
If a combustible surface is applied to the concrete
floor, a clearance must be maintained equivalent to
the area reserved for the floor protector.
INSTALLATION APPLICATIONS
Illustration 1-b
Chimney Connector Systems and Clearances
from Combustible Walls for Residential Heating
Appliances
Minimum 3.5-in thick brick mansory all framed into
combustible wall with a minimum of 12-in brick
separation from clay liner to combustibles. The
fireclay liner shall run from outer surface of brick wall
to, but not beyond, the inner surface of chimney flue
liner and shall be firmly cemented in place.
A
B
C
D
Solid-insulated, listed factory-built chimney length of
the same inside diameter as the chimney connector
and having 1-in or more of insulation with a minimum
9-in. air space between the outer wall of the chimney
length and combustibles.
Sheet steel chimney connector, minimum 24 gauge
in thickness, with a ventilated thimble, minimum 24
gauge in thickness, having two 1-in. air channels,
separated from combustibles by a minimum of 6-in.
of glass fiber insulation.
Opening shall be covered, and thimble supported
with a sheet steel support, minimum 24 gauge in
thickness.
Solid insulated, listed factory-built chimney length
with an inside diameter 2-in. larger than the chimney
connector and having 1-in. or more of insulation,
serving as a pass-through for a single wall sheet steel
chimney connector of minimum 24 gauge thickness,
with a minimum 2-in. air space between the outer
wall of chimney section and combustibles. Minimum
length of chimney section shall be 12-in. chimney
section spaced 1-in. away from connector using sheet
steel support plates on both ends of chimney section.
Opening shall be covered, and chimney section
supported on both sides with sheet steel supports
securely fastened to wall surfaces of minimum 24
gauge thickness. Fasteners used to secure chimney
section shall not penetrate chimney flue liner.
Pre-Manufactured Flue System:
In the past few years pre-manufactured flue systems
have become very popular, because this type system
is easily installed and, when done correctly, is very
safe. There are many pre-manufactured flue systems
on the market, and when making your choice it should
be U.L., B.O.C.A. or I.C.B.O. approved. Any of these
systems are constructed of the proper materials and
meet the proper safety standards. Your local dealer
normally handles an approved brand of flue pipe.
There are two very popular methods for installation
of this type system.
The first, most popular and least expensive is through
the ceiling and out the roof. This is the most direct
route and creates a good draw because it requires
less pipe. It is less expensive because insulated pipe
is needed only from the ceiling to the roof and above
-- single wall chimney connect, 24 gauge or thicker
is used from the unit to the ceiling; maintain 10.5”
clearance between single wall chimney connector
and any combustibles.
The second method for installing a pre-manufactured
system is to exit through the wall and run the system
vertically up the outside of the structure. This method
is more expensive because more insulated pipe is
required -- you must use insulated pipe through the
wall and up the outside of the structure. In either
installation, proper clearances to combustibles should
be maintained. Your flue pipe manufacturer furnishes
a wall thimble or ceiling support box and, when
installed properly, the correct clearances are achieved.
If you are unable to install this type system your
local dealer may be able to recommend a qualified
contractor for this installation. It is the customer’s
responsibility to ensure that his system is installed
properly and is in good operating condition.
FLOOR AND WALL
PROTECTION
1. Floor Protection
You will not need any floor protection if your floor is
constructed of a non-combustible material such as
brick or concrete. If your floor is constructed with a
combustible material such as hardwood, carpet or
Illustration 2
67

Installation on a Combustible Floor
If the appliance is to be installed on a combustible
floor or a combustible floor covering, it must be
installed on a 1” thick non-combustible millboard
floor protector or a durable equivalent. The pad must
be installed beneath the unit, extending 16” (U.S.) on
the side equipped with a door, and 8” on all other
sides. The pad must cover any horizontal chimney
connector runs and extend 2” beyond each side.
Alternate Floor Protection:
An easy means of determining if a proposed alternate
floor protector meets requirements listed in the
appliance manual is to follow this procedure:
1) Convert specification to R-value:
2) Determine the R-value of the proposed alternate
floor protector.
3) If the overall R-value of the system is greater
than the R-value of the specified floor protector, the
alternate is acceptable.
Example:
The specified floor protector should be 3/4-inch thick
material with a k-factor of 0.84.
The proposed alternate is 4” brick with a C-factor of
1.25 over 1/8”mineral board with a k-factor of 0.29.
Step (a):
Use formula above to convert specification to R-value.
R = 1/k x T = 1/0.84 x .75 = 0.893
Step (b):
Calculate R of proposed system.
4”brick of C=1.25, therefore Rbrick=1/C=1/1.25= 0.80
1/8” mineral board of k = 0.29, therefore Rmin.bd. =
1/0.29 x 0.125 = 0.431
Total R=Rbrick + Rmineral board= 0.8 + 0.431 = 1.231
Step (c):
Compare proposed system R of 1.231 to specified
R of 0.893. Since proposed system R is greater than
required, the system is acceptable.
Definitions:
2. Wall Protection
Please see Illustration 3 for clearances to walls.
In some areas local codes may require thirty-six
inches (36”) from a combustible, therefore it is very
important that you check with local officials. If you
need to place your unit closer to a combustible wall,
some protection will be necessary. If an approved
wall board is used this will reduce your clearance by
two thirds (2/3); however, a one inch (1”) air space has
to be between the board and the wall. If you have a
ceiling flue hook-up, you will need protection from
the floor to the ceiling if you do not meet the normal
clearances. If you have a wall flue hook up, you will
need wall protection at least twelve inches (12”)
above the wall thimble.
iR-value is given - no conversion is needed.
ii k-factor is given with a required thickness (T) in
inches: R = 1/k x T
iii C-factor is given: R = 1/C
i Use the formula in step (1) to convert values not
expressed as“R”.
ii For multiple layers, add R-values of each
layer to determine the overall R-value.
Thermal conductance = C = Btu = W
(hr)(ft)(ºF) (m)(ºK)
Thermal conductivity = k = (Btu)(inch) = W = Btu
(hr)(ft)(ºF) (m)(ºK) (hr)(ft)(ºF)
Thermal resistance = R = (ft)(hr)(ºF) = (m)(ºK)
Btu W
Illustration 3
CLEARANCE TO COMBUSTIBLES
Appliance
Clearances Unprotected Surfaces
Side
(A)
Rear
(B)
Corner
(D)
Connector
to backwall
(C)
Connector
towall
(corner)(E)
Single wall
connector
R 450
14 in
355 mm
16 in
406 mm
16 in
406 mm
16.75 in
425 mm
16.75 in
425 mm
NOTE: Alcove ceiling minimum height = 48 in
Convection cover (Side Heat Shields )
The AMESTI R- 450 has a cover of the combustion
chamber for generating heat by convection. Also, this
cover act like a heat shield incorporated in hardware.
(Is not necessary to install other piece.)
AMESTI R 450 have refractory bricks just like show the
Illustration 4
Illustration 4
15 refractory bricks: 7.1” x 2.3” x 0.8”
FREESTANDING PLACEMENT
AND INSTALLATION
The first problem you may encounter is getting your
stove into your home -- all of our stove products are
well constructed, which makes them rather heavy.
Three to four adults can normally handle a unit, but
we still recommend using a handcart. Never attempt
to handle a heating product alone!!! The door and
brick can be temporarily removed to lighten the unit
(refer to Brick Layout).
Chimney Connector Pipe
The black pipe must be six inches (6”) in diameter and
at least 24 gauge steel pipe. Do not use aluminum
or galvanized steel pipe, as it will not withstand the
extreme temperatures generated by the stove. Also,
do not use single wall connector pipe as a chimney --
youmust connect yourstoveto achimneycomparable
to those listed earlier in this manual.The crimped end
of your pipe should be inserted into the flue collar
and, by doing this, all the pipe will be reversed. If
you use this method the creosote will run back down
the inside of your pipe and not out of the joints onto
your stove. As a safety precaution, all joints should be
sealed with high temperature silicone (AC-RTV3) and
secured with sheet metal screws.
89