Enerzone Solution 2.5-ZC User manual

Printed in Canada 45181A
18-04-2013
MODEL ENERZONE SOLUTION 2.5ZC
Installation Instructions
This installation manual will help you obtain a safe, efficient, dependable installation for your fireplace and
chimney system. Please read and understand these installation instructions before beginning your installation.
CAUTION:Do not attempt to modify or alter the construction of the fireplace or its components. Any
modification or alteration of construction may void the warranty, listings and approvals of this system. In that
case, Stove Builder International (SBI) will not be responsible for damages. Install the fireplace only as
described in these instructions.
PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE
Listed to standards
ULC-S610 and UL-127
Manufactured by:
STOVE BUILDER INTERNATIONAL INC.
250, de Copenhague, Saint-Augustin-de-Desmaures (Quebec), Canada G3A 2H3
Tel: [phone] Fax: [phone]
This manual is available for free download on the manufacturer’s web site. It is a copyrighted
document. Re-sale is strictly prohibited. The manufacturer may update this manual from time to
time and cannot be responsible for problems, injuries, or damages arising out of the use of
information contained in any manual obtained from unauthorized sources.

TABLE OF CONTENTS
1.SAFETY RULES FOR OPERATING YOUR FIREPLACE........................................1
2.THE FIREPLACE......................................................................................................3
2.1INTRODUCTION..................................................................................................................3 
2.1.1Parts Required....................................................................................................................3
2.1.2Additional Equipment (optional) .......................................................................................3
2.2OPERATING THE ENERZONE SOLUTION 2.5ZC .......................................................4
2.2.1Fuel ....................................................................................................................................4
2.2.2 The use of manufactured logs............................................................................................4
2.2.3First Fires ...........................................................................................................................5
2.2.4Building a Fire ...................................................................................................................5
2.2.5Maintaining the Fire...........................................................................................................5
2.2.6Primary Air ........................................................................................................................6
2.2.7Combustion Settings ..........................................................................................................7
2.2.8Smoking  Causes and Troubleshooting ...........................................................................8
2.3MAINTAINING YOUR ENERZONE SOLUTION 2.5ZC ...............................................9
2.3.1Creosote – Formation and Need for Removal ...................................................................9
2.2.2Chimney Maintenance .......................................................................................................9
2.3.3Fire Baffle Removal Prior to Cleaning the Chimney ......................................................10
2.3.4Dealing with a Chimney Fire...........................................................................................10
2.3.5Plated Finish Maintenance...............................................................................................11
2.3.6Disposal of Ashes ............................................................................................................11
2.3.7Refractory Replacement ..................................................................................................11
2.3.8Glass Care – Replacement ...............................................................................................12
2.3.9Glass Care – Cleaning......................................................................................................13
2.3.10Gasket Replacement ........................................................................................................13
2.4FIREPLACE INSTALLATION .........................................................................................14
2.4.1Locating the ENERZONE SOLUTION 2.5ZC ...............................................................14
2.4.2Heart Extension Requirements ........................................................................................15
2.4.3Framing, Facing, Mantel, and Combustible Shelf...........................................................18
2.4.4Blower connection ...........................................................................................................26
2.5HOT AIR DUCTING INSTALLATION ...........................................................................27
2.5.1Gravity Kit .......................................................................................................................27
2.5.2Central Forced Air Kit (Not tested under EPA certification) ..........................................29
2.6FRESH AIR KIT (OPTIONAL).........................................................................................31
2.6.1Outside Air Installation....................................................................................................31
2.7DOOR OVERLAY INSTALLATION ...............................................................................33
2.8DOOR ALIGNMENT..........................................................................................................34
2.9OPTIONAL FIRE SCREEN INSTALLATION (AC01308)............................................35

ii
3.THE CHIMNEY........................................................................................................36
3.1CHIMNEY INSTALLATION NOTES..............................................................................36
3.2CHIMNEY INSTALLATION INSTRUCTIONS.............................................................37
3.3OFFSET CHIMNEY INSTALLATION............................................................................40
3.4ANGLED WALL RADIATION SHIELD .........................................................................44
3.5CHIMNEY SUPPORT INSTALLATION.........................................................................45
3.6CHIMNEY CHASE AND MULTIPLE TERMINATIONS ............................................46
3.7INSTALLATION INSTRUCTIONS FOR MASONRY APPLICATION......................47
4.OPTIONS................................................................................................................48
5.APPENDIX..............................................................................................................49
5.1SPECIFICATIONS..............................................................................................................49
5.2CLEARANCE TO COMBUSTIBLES...............................................................................49
5.4THERMAL CHARACTERISTICS OF COMMON FLOOR PROTECTION
MATERIALS*..................................................................................................................................50
ENERZONE LIMITED LIFETIME WARRANTY................................................................53

1
1. SAFETY RULES FOR OPERATING YOUR
FIREPLACE
Use only an Enerzone glass door, specifically designed for the model ENERZONE
SOLUTION 2.5ZC.
We recommend that our wood burning hearth products be installed and serviced by
professionals who are certified in the United States by NFI (National Fireplace
Institute®) or in Canada by WETT (Wood Energy Technical Training) or in Quebec by
APC (Association des Professionnels du Chauffage).
When cleaning the fireplace, the ashes should be placed in a metal container with a
tight fitting lid. The closed container of ashes should be placed on a non-combustible
floor or on the ground outside the house, pending final disposal. If the ashes are
disposed of by burial in soil or otherwise locally dispersed, they should be retained in
the closed container until all cinders have thoroughly cooled.
CAUTION: DO NOT INSTALL THIS FIREPLACE IN A MOBILE HOME.
CAUTION:NEVER USE GASOLINE, KEROSENE, CHARCOAL LIGHTER
FLUID OR SIMILAR LIQUIDS TO START OR REKINDLE A FIRE IN
THIS FIREPLACE. KEEP ALL SUCH LIQUIDS WELL AWAY FROM
THE FIREPLACE AT ALL TIMES.
CAUTION: KEEP COMBUSTIBLE MATERIALS AT LEAST 48 INCHES AWAY
FROM THE FRONT OF THE FIREPLACE OPENING.
CAUTION: NEVER LEAVE CHILDREN UNATTENDED WHEN THERE IS A
FIRE BURNING IN THE FIREPLACE.
CAUTION: NEVER USE GRATE OR ELEVATE FIRE. BUILD WOOD FIRE
DIRECTLY ON HEARTH.
CAUTION: DO NOT USE A FIREPLACE INSERT AND OTHER PRODUCTS NOT
SPECIFIED FOR USE WITH THIS FIREPLACE.
CAUTION: DO NOT OBSTRUCT AIR INTLETS. THIS FIREPLACE NEEDS AIR
FOR ITS GOOD OPERATION.
WARNING: THIS FIREPLACE HAS NOT BEEN TESTED WITH AN UNVENTED
OR VENTED GAS LOG SET. TO REDUCE RISK OF FIRE OR
INJURY, DO NOT INSTALL AN UNVENTED GAS LOG SET INTO
THIS FIREPLACE.
WARNING: DO NOT USE MATERIALS OTHER THAN THOSE LISTED IN THE
REPLACEMENT PARTS SECTION DURING INSTALLATION AS
THEY MAY BE SAFETY HAZARDS AND A FIRE COULD RESULT.

2
WARNING:
THE INFORMATION GIVEN ON THE CERTIFICATION LABEL AFFIXED TO
THE APPLIANCE ALWAYS OVERRIDES THE INFORMATION PUBLISHED, IN
ANY OTHER MEDIA (OWNER’S MANUAL, CATALOGUES, FLYERS,
MAGAZINES AND/OR WEB SITES).
PLEASE NOTE THAT THE PICTURES SHOWN IN THIS
MANUAL ARE GENERIC AND MAY NOT MATCH
EXACTLY THE LOOK OF YOUR FIREPLACE.
REGISTER YOU WARRANTY ONLINE
To receive full warranty coverage, you will need to show evidence of the date
you purchased your unit. Keep your sales invoice. We also recommend that you
register your warranty online at
http://enerzone-intl.com/warranty-registration.aspx
Registering your warranty online will help us track rapidly the information we
need on your unit.

3
2. THE FIREPLACE
2.1 INTRODUCTION
The ENERZONE SOLUTION 2.5ZC fireplace is an energy efficient, heat circulating, close
combustion 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 components from the manufacturers
listed in table 2.
The ENERZONE SOLUTION 2.5ZC is not intended for use with a gas log. Failure to
follow these instructions will void the certification and the warranty of the fireplace
and may result in an unsafe installation.
This heating unit must serve as a supplementary heat source. An alternative heat
source should be available in the home if needed. The manufacturer cannot be
responsible for additional heating costs associated with the use of an alternative heat
source. It is highly recommended that the user buys this product from a retailer who
can provide installation and maintenance advices.
2.1.1 Parts Required
Fireplace model ENERZONE SOLUTION 2.5ZC
Insulated chimney made by the manufacturers listed in table 2, with the corresponding
specifications :
Chimney lengths
Elbows (where necessary)
Associated components as per these installation instructions.
2.1.2 Additional Equipment (optional)
Forced air kit
Gravity venting system
Outside air kit
Spark screen

4
2.2 OPERATING THE ENERZONE SOLUTION 2.5ZC
2.2.1 Fuel
The ENERZONE SOLUTION 2.5ZC is designed to work best when fuelled with seasoned
cordwood. Use solid wood or processed solid fuel firelogs only. 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 those criteria. Excessively wet wood will be difficult to
burn and will result in lower efficiency, 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 igniting a chimney fire if the chimney is creosoted.
CAUTION: DO NOT OVER FIRE THIS HEATER OVER FIRING CAN RESULT IN
A SAFETY HAZARD AND CAN PERMANENTLY DAMAGE THE
FIREPLACE AND CHIMNEY.
2.2.2 The use of manufactured logs
There are numerous types of manufactured logs sold on the market. You must be very
careful with this type of product. Many brands of manufactured logs contain chemical
additives. DO NOT BURN ANY MANUFACTURED LOGS CONTAINING CHEMICAL
ADDITIVES. IF YOU DO, YOU MAY OVERHEAT YOUR FIREPLACE, THEREFORE
CAUSING A FIRE HAZARD AND VOIDING YOUR WARRANTY. Logs containing
chemical additives burn a lot hotter and were designed for decorative fireplaces. Decorative
fireplaces generally have larger, cooler, and less air-tight fireboxes. Your ENERZONE
SOLUTION 2.5ZC, on the other hand, has a smaller, completely sealed firebox which attains
much higher temperatures. It is therefore not designed to support excessive heat caused by
the addition of chemicals in manufactured logs. Manufactured logs made of 100% wood
residues do not pose a threat to your fireplace. However, they must be used carefully.
Manufactured logs typically release a much larger heat output over a short period of time.
Therefore, you cannot place a large quantity of such logs into your fireplace. Start with one
log, and gradually increase the load. Never put more than 3 logs.
WARNING: DO NOT POKE OR STIR THE LOGS WHILE THEY ARE BURNING.
USE ONLY FIRELOGS THAT HAVE BEEN TESTED FOR USE IN
FIREPLACES (SEE ULC/ORD-C127, COMPOSITE FIRELOGS) AND
PRIOR TO USE, REFER TO FIRELOG WARNINGS AND
CAUTIONS MARKINGS ON PACKAGING.

5
2.2.3 First Fires
The fresh paint on your fireplace needs to be cured to preserve its quality. Once the fuel load
is properly ignited, only burn small fires in your fireplace for the first four hours of operation.
Never open the air control more than necessary to achieve a medium burn rate. Make sure that
there is enough air circulation while curing the stove. Open one or more windows. The
odours can be smelled during the 3 or 4 first fires.
2.2.4 Building a Fire
To start a fire, place several crumpled up balls of newspaper in the firebox behind the andiron.
Place small dry pieces of kindling on top of the paper, criss-crossing the kindling so that there
are air spaces in between. Keep the fuel far back enough so that air can get underneath. Open
the air controls fully and light the newspaper. Once the newspaper and the kindling is well
ignited, close the door. Once the kindling fire is well established, cordwood can be added.
(See Primary Air Combustion Control section for proper operation of the air controls.). Make
sure that cordwood is always behind the andiron.
The unit will burn best with 2-3 pieces of cordwood spaced 1 to 2 inches apart and allowing
air to get under the fuel. Criss-crossing or arranging the fuel so that air can get underneath,
will help the fire to get started easily. The unit should be operated with the air control fully
open long enough to get the cordwood well ignited
CAUTION: PLACE THE WOOD LOGS FAR ENOUGH FROM THE GLASS TO
ALLOW PROPER PRIMARY AIR FLOW
2.2.5 Maintaining the Fire
Once the wood has been consumed (or partially consumed) and you have obtained a good bed
of embers, you should reload the unit. In order to do so, open the air control to its maximum
for approximately 15 seconds prior to opening the fireplace door. Then, proceed by opening
the door very slowly. Open it by 2" to 4" (52 to 104 mm) for 10 seconds before opening it
completely. This procedure will increase the draft and thus eliminate the smoke which is
stagnant in a state of slow combustion in the fireplace. Then, bring the red embers to the front
of the stove and reload the unit.
Your ENERZONE SOLUTION 2.5ZC fireplace will work best if a thick bed of hot embers is
maintained in the bottom of the firebox, and a minimum of two large pieces of seasoned fuel
are added. Combustion efficiency is largely related to establishing a hot ember bed, and hot
firebox temperatures. The quicker the fireplace and chimney (flue) get up to normal operating
temperatures, the better. A small intense fire is preferred to a large smouldering fire, both to
improve combustion efficiency and to reduce the amount of creosote build-up. The best
performance will be obtained by adding relatively small amounts of fuel to a well established
ember bed, and then operating with the air inlet control open long enough to achieve a hot
fire. Use a poker to make an air channel in the embers below the wood. This will allow air to
flow under the wood for a more efficient burn. Once you have reached the desired
temperature, the primary air can be set to a medium setting. You know you have reached the

6
desired temperature when, closing the primary air control, you can see a flame at the top of
the firebox. The benefit of this technique will be cleaner glass, less creosoting, greater
efficiency and the most pleasing fire for your enjoyment.
In order to achieve an optimum efficiency from your unit, we suggest that you operate it with
the air control completely closed. Make sure that you have a good fire going and an adequate
ember bed before you completely close the air control. Closing the air control too soon will
lower combustion efficiency and may cause the fire to die out. The addition of a blower (if
not already included) is highly recommended to maximize your unit’s efficiency.
2.2.6 Primary Air
There is no flue damper in the ENERZONE SOLUTION 2.5ZC. As in common with air tight
stoves, the combustion air control sets the flow of air entering the firebox. This allows for a
more precise control of the fire. The combustion air control is located below the door on the
right side. The main source of air (primary air) entering the firebox can be diminished by
moving the air combustion control from right to left. The primary air is fully opened when the
air control is completely moved to the right. The combustion air control should be in the
closed position (primary air) when the fireplace is not in use. This will minimize air leakage
up the chimney. The combustion air control should be opened before opening the door to
minimize the possibility of back draft coming into the room.
SLOW
MEDIUM
ACCELERATED
Figure 1

7
2.2.7 Combustion Settings
Accelerated Combustion
The maximum heat output for the ENERZONE SOLUTION 2.5ZC is achieved by burning
with the door closed and the combustion air opened. By this method, the ENERZONE
SOLUTION 2.5ZC can produce up to 75,000 BTU of heat per hour. However, it will be
necessary to reload with wood every one or two hours. This is the least efficient method of
burning the ENERZONE SOLUTION 2.5ZC. Use caution when firing with the combustion air
control wide open. Only burn cordwood in this manner. Small dry pieces of softwood and
construction scraps will burn very intensely using this method and may damage the firebox.
Medium Combustion
This is the recommended mode of operating the ENERZONE SOLUTION 2.5ZC and should
be the one normally used since it will deposit the least amount of creosote on the glass and in
the chimney. The combustion air control must be ¾ closed. The precise setting will depend on
many factors, including chimney length and the moisture content of the wood.
For instance, a long chimney will necessitate closing the combustion air control. To obtain the
proper combustion, close the combustion air control completely, and then open it about ¼" to
½". Three medium size pieces of wood should be burning on a bed of hot coals. The heat
output will be approximately 35,000 BTU per hour and the loading time will be about every
3-4 hours. Softwoods may be burned using this method but the time will be substantially
reduced.
Slow Combustion
When the air combustion control is completely closed, the fireplace is in a slow combustion
phase. If the heart is hot enough, slow combustion will not stop the fire, but there will be a
noticeable change in the flame pattern. The flames will be slow and may appear dirty if the
wood is too wet (moisture content of 20% and more). Do not allow the wood to burn without
flame, since this will produce excessive creosote in the unit.
Creosote may accumulate on the glass door. This method of burning should be used only after
operating the ENERZONE SOLUTION 2.5ZC with the air control opened to produce a hot
fire for about an hour or at medium pace for at least 2 hours. Slow combustion can be used at
night in order to reduce the heat output and to prolong the burn. The refuelling interval time
will be between 6-8 hours.

8
2.2.8 Smoking  Causes and Troubleshooting
To reduce the likelihood of smoking when opening the door, set the combustion air controls
to the right (accelerated) before opening the door. Your fireplace has been designed and tested
to provide smoke free operation. Occasionally, there may be a small amount of smoking upon
lighting the fire, until the chimney heats up but this should not continue. If the fireplace
continues to smoke it is probably for one of the following reasons:
A. Negative pressure in the house
As the fire burns, air goes up the chimney. This air must be replaced through leakage into
the house or through the fresh air kit. When operating the ENERZONE SOLUTION
2.5ZC, open a nearby window temporarily to check if there is adequate air supply
replacement. If opening a window solves the problem, the house is under negative
pressure.
B. Fans operating (e.g.: range hood)
These fans draw air out of the house and may actually cause a negative pressure in the
house. Turn off all fans and open a nearby window to determine if this is the cause of the
problem.
C. Wet wood
Wet or tarred wood will smoulder and smoke instead of burning properly.
D. Dirty or blocked chimney
Check to make sure the chimney is clear and clean.
E. Chimney not long enough
The minimum system height is 15 feet (4.6m). The chimney must extend at least 3 feet
(915 mm) above its point of contact with the roof and at least 2 feet (0.6 m) higher than
any roof or wall within 10 feet (3 m) of it. When installed with offsets, the minimum
system height is 15 feet (4.6 m) to 17 feet (5.2 m) as per Table 1. Additional height will
increase draught and will decrease the tendency to smoke. If only the minimum chimney
height is installed, operating conditions must be optimal (interior chimney, minimum
height of 18” before any offset, etc.).
F. Poor chimney draft
With no fire, there should be sufficient draught to exhaust cigarette smoke introduced
under the baffle. Chimneys installed against an outside wall without protection may
generate back draught problems which will cause start-up problems. To prevent this, open
a nearby window, roll up a piece of paper and light it. Then, hold it in the upper part of the
firebox to warm up the chimney. Wait until the draught is sufficient, then start the fire.

9
IMPORTANT NOTES
A. Do not block the hot air vents to the fireplace as this will cause the fireplace to overheat.
B. Never start a fire using gasoline, kerosene, charcoal lighter fluid or any other combustible
liquid.
C. Do not burn coal. The sulphur in coal will corrode the firebox.
D. Do not burn driftwood which has been in the ocean or salt water. The salt will corrode the
firebox and chimney.
E. Do not abuse the unit by burning paper or cardboard or construction material such as
pressed wood, plywood or lumber.
F. Do not allow the wood to smoulder or burn without flame, since this will produce
excessive creosote in the unit.
2.3 MAINTAINING YOUR ENERZONE SOLUTION 2.5ZC
2.3.1 Creosote – Formation and Need for Removal
When wood is burned slowly without a flame, it produces tar and other organic vapours
which combine with expelled moisture to form creosote. The creosote vapours condense in;
the relatively cool chimney flue of a slow-burning fire. As a result, creosote residue
accumulates on the flue lining. When ignited this creosote makes an extremely hot fire.
The chimney shall be inspected at least twice a year during the heating season to determine
when a creosote build-up has occurred. When creosote has accumulated it shall be removed
to reduce the risk of a chimney fire.
2.2.2 Chimney Maintenance
Regular chimney inspection and maintenance combined with proper operation will prevent
chimney fires. Keep your chimney clean. Do not allow more than 1/16creosote build up in
your chimney. The amount of creosote will depend on variables such as frequency of use and
type of fire. We recommend that you:
A. Initially inspect the chimney system weekly. From this, you will learn how often it
will be necessary to clean your chimney.
B. Have your chimney cleaned by a qualified chimney sweep. If you wish to clean it
yourself, we recommend using a stiff plastic or non-metallic brush. If a metal brush is
used, its size should be slightly smaller than the flue to avoid damaging the chimney.
Do not use a brush that will scratch the stainless steel interior of the chimney.
C. Do not expect chemical cleaners to keep your chimney clean. The rain cap can be
removed for inspection and/or cleaning of the chimney.

10
2.3.3 Fire Baffle Removal Prior to Cleaning the Chimney
Before starting to clean your chimney, we recommend that you remove the fire baffle to avoid
creosote dust collection on top of the baffle. Follow the steps below to remove the fire baffle:
1. Remove the front air tube by pulling out the cutter pin on the side of the tube. They are
located at the top, underneath the baffle.
2. Lift the baffle and slide it out of the fireplace. You now have access to the chimney.
Figure 2
2.3.4 Dealing with a Chimney Fire
Regular chimney maintenance and inspection can prevent chimney fires. If you have a
chimney fire, follow these steps:
1. Close the fireplace door and the combustion air controls;
2. Alert your family of the possible danger;
3. If you require assistance, alert your fire department;
4. If possible, use a dry chemical fire extinguisher, baking soda or sand to control the fire.
Do not use water as it may cause a dangerous steam explosion;
5. Check outside to ensure that sparks and hot embers coming out of the chimney are not
igniting the roof;
6. Do not use the fireplace again until your chimney and fireplace have been inspected by a
qualified chimney sweep or a Fire Department Inspector;

11
2.3.5 Plated Finish Maintenance
Use a metal polish and a soft cloth to clean the plated finishes. Do not use abrasives such as
steel wool, steel pads or an abrasive cleaner for they may scratch the finish.
2.3.6 Disposal of Ashes
Do not attempt to clean the fireplace when the unit is hot. Ashes should be placed in a metal
container with a tight fitting lid. The closed container of ashes should be placed on a non-
combustible floor or on the ground, well away from combustible materials pending final
disposal. If the ashes are disposed of by burial in soil or otherwise locally dispersed they
should be retained in the closed container until all cinders have thoroughly cooled. Do not
attempt to clean the stove when the unit is hot.
Note: The fan should be turned in “OFF” position prior to ash removal to avoid ashes to be
pulled towards the fireplace and then pushed into the room.
2.3.7 Refractory Replacement
The intense heat of the fire will normally cause hairline cracks in the refractory. These cracks
can be minimized by proper curing as described in “First Fires”. They will not normally
diminish the effectiveness of the refractory. If large cracks develop, then the refractory should
be replaced. To replace the refractory bricks, follow these steps:
1. Remove the andiron (A) held in
place by the two torx screws (B).
2. Remove the brick retainers (C)
3. Remove the left side bricks (D)
4. Remove the right side bricks (E)
5. Remove the rear bricks (F)
6. Remove the bottom brick (G)
To install the new bricks, follow the
above steps in reverse.
Figure 3

12
2.3.8 Glass Care – Replacement
The two glasses used in the ENERZONE SOLUTION 2.5ZC are 5 mm thick and have the
same dimension of 13.188" H x 11.875" W. They are tested to reach temperatures up to
1400º F. If a glass breaks, it must be replaced with one having the same specification.
Contact your ENERZONE dealer to obtain a genuine replacement part (see “replacement
parts”, in appendix to get the proper part number).
WARNING: TEMPERED GLASS OR ORDINARY GLASS WILL NOT WITHSTAND
THE HIGH TEMPERATURES OF THE ENERZONE SOLUTION 2.5ZC.
WARNING: DO NOT ABUSE THE GLASS DOOR BY SLAMMING IT AGAINST
THE FIREPLACE.
WARNING: DO NOT OPERATE THE FIREPLACE WITH A CRACKED OR
BROKEN GLASS.
In order to replace the glass, use the following procedure;
1- Remove the six glass retainers (4) held in place by six screws (1).
2- Remove the glass frame (2 and 3)
3- Remove the glass (5)
4- To install the new glass, follow the above steps in reverse order.
Figure 4

13
2.3.9 Glass Care – Cleaning
The ENERZONE SOLUTION 2.5ZC is designed to keep the glass clean under normal
operating conditions. If the ENERZONE SOLUTION 2.5ZC is operated continuously with the
combustion air controls closed, the glass will tend to get dirty unless the fuel, firebox and
glass are maintained at higher temperatures. To clean the glass, there are a number of
specially designed cleaners. Your authorized ENERZONE dealer can recommend a suitable
cleaner which is available in your area. Regular household glass cleaners will not clean
creosote and they usually contain ammonia that may stain the glass permanently.
WARNING: ONLY WASH THE GLASS WHEN IT’S COLD.
WARNING: DO NOT USE ABRASIVES SUCH AS STEEL PADS, STEEL WOOL OR
OVEN CLEANER AS THEY WILL SCRATCH THE GLASS.
2.3.10 Gasket Replacement
Remove the doors from the unit and lay them on a clean, non-abrasive surface. To replace the
gasket around the door frame, first remove the old gasket and adhesive. Make sure that the
surface is totally clean before applying new adhesive (a high temperature silicone caulking
rated for at least 500ºF, 260ºC, is suitable) or adhesion problems may result. Apply the
adhesive inside the door groove (gasket channel) and install the new gasket with a gentle
pressure. Let dry for at least 24 hours. To replace the glass gasket, simply remove the glass
retainers holding the glass to the door frame. Remove the glass and peel off the gasket
surrounding it. Replace it by a new, self-adhesive glass gasket. The proper replacement
gaskets are available from your ENERZONE dealer in the following dimensions:
Gasket Length Dimensions
Glass gasket 51 ½" (131 cm) “U” Shape self adhesive
Door frame gasket 41 ¼" (105 cm) Flat ¼" x ½"
Middle door frame gasket 14" (36 cm) Round ¼" self adhesive

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2.4 FIREPLACE INSTALLATION
2.4.1 Locating the ENERZONE SOLUTION 2.5ZC
A. The best location to install your fireplace is determined by considering the location of
windows, doors, and the traffic flow in the room where the fireplace is located, allowing
space in front of the unit for the heart extension and the mantel, and taking into
consideration the location of the hot air ducts (optional), outside air kit and chimney. If
possible, you should choose a location where the chimney will pass through the house
without cutting floor or roof rafters.
B. Usually, no additional floor support is needed for the fireplace. The adequacy of the floor
can be checked by first estimating the weight of the fireplace system. Weights are given in
the appendix. Next, measure the area occupied by the fireplace which is normally 36¾" ×
26". Note the floor construction and consult your local building code to determine if
additional support is needed.
C. The ENERZONE SOLUTION 2.5ZC may be installed directly on the floor or on a raised
base (for proper guidelines, refer to “Heart Extension Requirements”) and a minimum of 7
feet (2.15 m) measured from the base of the appliance to the ceiling is required. The
hearth extension is to be installed only as illustrated in the drawing below.
Figure 5. Installation on raised base
Figure 6. Ceiling clearance requirements

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2.4.2 Heart Extension Requirements
The hearth extension floor area must extend at least 16" (40 cm) in front of the hearth and at
least 8" (20 cm) on each side of the door opening (see figure 7). The joint between the hearth
extension and the fireplace hearth needs to be made of non-combustible material such as sheet
metal (not included) as shown on figure 8.
Figure 7
Figure 8

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When the fireplace is installed directly on the floor, a noncombustible floor protection in front
of the unit must be installed and have an R value insulation equal to or greater than 1.00. The
use of an R value is convenient when more than one material is going to be used in the hearth
extension to cover the combustible surface. This is because R values are additive, whereas K
values are not. To find the corresponding R factor to use for some selected materials, please
see Appendix section. Please note that the minimum height of the raised base of the fireplace
should match or exceed the height of the floor protection.
2.4.2.1 R Calculations
There are two ways to calculate the R factor of the floor protection. First, by adding the R-
values of the proposed materials or if some K and thickness values are given, by converting
them to R values.
To calculate the R factor for a composite floor protection made of a combination of
alternative materials, simply add the R-values of those materials. If the result is equal to or
larger than the required R value, the combination is acceptable. For R-values of some selected
materials, see Appendix section.
Example:
Required floor protection R of 1.00. Proposed materials: four inches of brick and one inch of
Durock® board
Four inches of brick (R = 4 x 0.2 = 0,8) plus 1 inch of Durock®(R = 1 x 0.52 = 0.52).
0.8 + 0.52 = 1.32.
This R value is larger than the required 1.00 and is therefore acceptable
In the case of a known K and thickness of alternative materials to be used in combination,
convert all K values to R by dividing the thickness of each material by its K value. Add the R
values of your proposed materials as shown in the previous example.
Example:
K value = 0.75
Thickness = 1
R value = Thickness/K = 1/0.75 = 1.33

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2.4.2.2 How to eliminate the need of a R value
It is however possible to eliminate the R value by elevating the unit from 4'' above the floor
(see Figure 9), but the joint between the extension of the hearth and the fireplace must be
protected by a non-combustible material. For example, a sheet metal (not included) as
illustrated in Figure 9 (B). Please note that a combustible floor protection of at least 16” long
must be installed in front of the fireplace as illustrated in Figure 9 (A).
Figure 9