Malm Fireplaces 34 Zircon Direct Vent Instruction manual

Malm Fireplaces, Inc.
368 Yolanda Avenue - Santa Rosa, Ca 95404
[phone] - Fax: [phone]
info@malmreplaces.com
Assembly And Installation Instructions
LEAVE THESE INSTRUCTIONS WITH THE OWNER.
Their are two parts to these instructions. The Malm unit instructions and the Regency L234
insert instructions. The operating and maintenace instructions for the Regency unit are in-
cluded as part of thes Malm 34ZDV instructions.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Leave the building immediately.
Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
 Ifyoucannotreachyourgassupplier;calltheredepartment.
 Installationandservicemustbeperformedbyaqualiedinstaller,serviceagencyorthe
gas supplier.
WARNING:Improperinstallation,adjustment,alteration,serviceormaintenancecancause
injuryorpropertydamage.Refertothismanual.
34 Zircon
Direct Vent
Donotusethisapplianceifanyparthasbeenunderwater.Immediatelycallaqualied
service technician to inspect the heater and replace any part of the control system and
any gas control that has been under water.
This appliance is not for use with glass doors.
34ZDV 6/1/18
Page - 1
Tested & Listed by LabTest
Certied for use in USA &
Canada. Certi é pour une utilisation
aux Etats-Unis et Canada
Listed: VENTED GAS FIREPLACE HEATER
CANADA and U.S.A. - Certied to: CAN/CGA-2.17-M91(R2009)
Tested to:ANSI Z21.88-2017 & CSA 2.33-2017 Shown with optional matching base.
Warning:
FIRE OR EXPLOSION HAZARD
Failuretofollowsafetywarningsexactlycouldresultinseriousinjury,death,orproperty
damage.
 Donotstoreorusegasolineorotherammablevaporsandliquidsinthevicinityof 
this or any other appliance.

GENERAL INFORMATION
This unit has been modied by having the Regency L234 insert installed and tested by Labtest Certi-
cations. This appliance has been tested in accordance with National Safety Standards and has been
certied by Lab Test for installation and operation as described in this manual. Contact Malm Fireplaces
for questions regarding installation or operation of this unit.
Please read all the instructions before beginning your installation. Check with your local building
code agency to ensure compliance with local codes. In the absence of local codes the installation
must comply with National Fuel Gas Code ANSI Z22.3.1. In Canada, current CAN/CGA-B149.1 and
B149.2 installation codes.
Installationandrepairshouldbedonebyaqualiedserviceperson.Theapplianceshould
beinspectedbeforeuseandatleastannuallybyaqualiedserviceperson.Morefrequent
cleaningmayberequiredduetoexcessivelintfromcarpeting,beddingmaterial,etc.It
isimperativethatcontrolcompartments,burnersandcirculatingairpassagewaysofthe
appliance must kept clean.
Page - 2
Unpackallpartsfromcartonscarefullyinspectingallparts.Ifanypartsaredamagedormissing,
contact shipper or dealer immediately.
Do not install this appliance using damaged parts.
GAS SUPPLY
For use with natural gas or propane gas, depending on which option you have ordered. The minimum
inlet gas supply pressure for the purpose of input adjustment:
a. The supply system should include a manual shut-o󰀨 valve and union in the line, so that the heater
can be disconnected for servicing.
b. The appliance must be isolated from the gas supply piping system by closing its individual manual
shut-o󰀨 valve during any pressure testing of the gas supply piping system at test pressures equal
to or less than 1/2 psig (3.5 kPa).
c. A 1/8 inch N.P.T. plugged tapping is provided, for test gauge connection, on the elbow adjacent
to the gas control valve.
34ZDV 6/1/18
NATURAL L.P. (PROPANE)
Min. Supply Pressure (in. wc/kPa): 5” (1.25 kpa) 12” WC (2.99 kpa)
Low Setting Manifold Pressure (in. wc/kPa): 1.1” WC (0.27 kpa) 2.9” WC (0.72 kpa)
Max. Manifold Pressure (in. wc/kPa): 3.8” WC (0.95 kpa) 11” WC (2.74 kpa)
Orice Size: 42 DMS 54 DMS
Minimum Input: 12,500 Btu/h (6.89 kW) 11,000 Btu/h (6.30 kW)
Maximum Input: 23,500 Btu/h (3.66 kW) 21,500 Btu/h (3.22 kW)

CLEARANCES
Make sure that minimum clearances to combustible materials are maintained during installation in-
cluding adequate space for the proper operation and servicing of the heater.
The minimum clearances from the appliance to combustibles are shown on gures 1 and 2. Place the
appliance on a at, solid, continuous surface (i.e. wood, tile, concrete, metal). When placed on carpet
the carpet and pad must not be so thick that movement of the unit occurs when walking or stepping
close to the unit. If movement is noticed remove the padding directly below the base of the unit. This
should eliminate any movement.
The decorative cover connector pipe is a cover for the 3 inch ex. The clearance required for the
cover pipe is 4 inches from combustibles.
Page - 3 34ZDV 6/1/18
WARNING
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. Toddlers,youngchildren,andothersmaybe
susceptible to accidental contact burns. A physical barrier is recommended if there are at-risk
individualsinthehouse.Torestrictaccesstoareplaceorstove,installanadjustablesafety
gatetokeeptoddlers,youngchildren,andotherat-riskindividualsoutoftheroomandaway
from hot surfaces.
CAUTION
Any safety screen or guard removed for servicing an appliance must be replaced prior to op-
erating the appliance. Ifthebarrierbecomesdamaged,thebarriershallbereplacedwiththe
manufacturer’s barrier for this appliance.
Clothingorotherammablematerialshouldnotbeplacedonorneartheappliance.
Figure 1 Figure 2
CLEARANCES
SIDEWALL AND BACKWALL
INSTALLATION
Unit to Sidewall------------------------------------- 2"
Unit to Backwall ------------------------------------ 2"
Connector to Sidewall -------------------------- 15"
Center of Connector to Sidewall ------------- 19"
Connector to Backwall---------------------------- 4"
Center of connector to Backwall --------------- 8"
CORNER INSTALLATION
Unit to Adjacent Wall --------------------------------2"
Connector to Adjacent Wall ----------------------- 7"
Center of Connector to Adjacent Wall -------- 11"
2"
15"
2" 4"
2"
7" 7" 2"

GAS LINE ATTACHMENT
The gas supply line must be installed at the rear center
of the gas unit. This supply line must be a minimum of
1/2", black iron type pipe. A separate manual shut o󰀨
valve should always be used. Check with local codes
for its required placement and valve type. In general it
must be placed within 6’ of the appliance. This valve is
not provided.
8" Middle Pipe
Section
8" Slip Connector
Framing
Sheet Rock
4 x 6 DirectVent
Pro 46DVA-GK
BACK OF UNIT
GAS SHUT
OFF VALVE
Page - 4
SUPPORT BOX WITH 46DVA-GK
Converts the two 3 inch ex to the Duravent
DirectVent Pro 4 x 6-5/8 inch vent.
Locking Tab
Support Box
8" Slip Connector
Venting Detail
34ZDV 6/1/18

VENTING
THE APPLIANCE MUST NOT BE CONNECTED TO A CHIMNEY
FLUE SERVING A SEPARATE SOLID FUEL BURNING APPLIANCE.
This appliance is designed to be attached to two 3" (76mm) co-linear aluminium ex running the full
length of the chimney connector from the unit to the support box. The ue length must be a minimum
length of 8' (2.44m) and a maximum of 35' (10.7m).
Periodically check that the vent is unrestricted. Masonry chimneys may take various contours which
the exible liner will accommodate. However, keep the exible liner as straight as possible, avoid un-
necessary bending.
Alternative Approved Venting Components*
46DVA-VCH High Wind Cap 46DVA-GK 3" Co-linear Adaptor with ashing
We recommend using the Simpson Dura-Vent System 46DVA-GK adapter and 46DVA-VCH high-wind
cap. The Air Intake pipe must be attached to the inlet air collar of the termination cap.
*NOTE: Simpson Duravent can only be used with 3" liners.
For additional venting options see page 11 of the Regency L234 Manual provided in this manual.
The unit is a vented appliance and must be connected to a chimney/ue in accordance with the
code, using the chimney manufacturer's instructions.
The 34ZDV is installed with the use of 2 - 3"
ex tubes. One for the exhaust and one for the
air intake. It is very important to connect them
to the correct couplings. The Exhaust must be
connected to the Exhaust tting at the sup-
port box. The Intake must be connected to the
Intake connector. If the ex tube is cut mark the
ends prior to cutting.
Step 1. The Dura Vent DirectVent Pro 4" x 6
5/8" coaxial pipe must have a 1" clearance to
combustibles when passing through ceilings,
walls, roofs, enclosures, attic rafters, or other
nearby combustible surfaces. Do not pack air
spaces with insulation. Check the appliance
manufacturer’s instructions for maximum verti-
cal rise of the venting system and any maxi-
mum horizontal o󰀨set limitations.
The support box must be mounted in the ceil-
ing. The placement must be in an area that is
clear of roof rafters or joists. Avoid hip supports or
engineered rafters or beams. Elbows are available
that should in most installations allow you to avoid
these areas. Follow DuraVent's instructions for the
proper installation of their DirectVent Pro 4" x 6
5/8" pipe that is run from the support box through
the roof.
The 3" Flex and Dura Vent DirectVent Pro venting is
available from your dealer or directly from Malm. It
is not included in the price of the unit.
Step 2. Set the Zircon in the desired location.
Drop a plumb bob down from the ceiling to the
position of the appliance ue exit, and mark the
location where the vent will penetrate the ceiling.
Drill a small hole at this point. Next, drop a plumb
bob from the roof to the hole previously drilled in
the ceiling, and mark the spot where the vent will
penetrate the roof (Fig. 13). Determine if ceiling
Page - 5
Vertical Minimum and Maximums
The ue length must be a minimum length of 8'
(2.44m) and a maximum of 35' (10.7m). Periodically
check that the vent is unrestricted
Horizontal Minimum
The minimum connector legnth is 30" from the top of
the unit to the top of the connector prior to the elbow.
VERTICAL INSTALLATION
34ZDV 6/1/18

Page - 6 34ZDV 6/1/18
joists, roof rafters, framing or other materials will
obstruct the venting system. You may wish to re-
locate the appliance, or to o󰀨set, to avoid cutting
load-bearing members. There is a 1-7/8" o󰀨set
from the center of the support box to the center
of the DirectVent Pro 4" x 6 5/8" center. The Sup-
port Box can be installed with this o󰀨set oriented
in any direction.
Step 3. To install Support Box in a at ceiling
cut a square hole in the ceiling 13" x 13" cen-
tered on the hole drilled in Step 2. Frame the
hole as shown (Fig. 14).
Step 4. Install the support box with the bottom
of the box 1" below the nished ceiling. Nailing
strips are provided that can be used to secure
the box to the framing and then sheet rocked
over or can be used a trim over sheet rock al-
ready in place.
Step 5. Assemble the desired DirectVent Pro
Pipe Sections and Elbows necessary to reach
from the Support Box. Ensure that all Pipe and
Elbow connections are in their fully twist-locked
position.
Step 6. Cut a hole in the roof centered on the
DirectVent Pro pipe from the Support Box. The
opening should be of su󰀩cient size to allow a 1"
minimum clearance to combustibles. Continue to
assemble Pipe Sections and Elbows as neces-
sary to reach up through the roof line. Galvanized
Pipe and Elbows may be utilized in the attic, as
well as above the roof line. The galvanized n-
ish is desirable above the roof line, due to higher
corrosion resistance.
Notes:
(1) If exact lengths or distances must be met be-
tween Elbow o󰀨sets or elsewhere, use the Pipe
Extensions to adjust onto standard Pipe Sections
(2) If an o󰀨set is necessary in the attic to avoid
obstructions, it is important to support the vent
pipe in order to avoid excessive stress on the El-
bows. Wall Straps or plumbers tape may be used
for this purpose (Fig. 16).
(3) Wherever possible, use 45° Elbows instead of
90° Elbows. The 45° Elbow o󰀨ers less restriction
to the ow of ue gases and intake air.
CENTER OF VENT
PLUMB
BOB
MARK AND
DRILL
MARK
LOCATION
FIGURE 13

Step 7. Slip the Roof Flashing over the Pipe
Section(s) protruding through the roof. Use a non-
hardening sealant between the Roof Flashing and
the roong to prevent water leakage. Secure the
base of the Roof Flashing to the roof with roong
nails. Ensure the roong material overlaps the top
edge of the Roof Flashing (Fig. 18). Verify that you
have at least the minimum clearance to combus-
tibles at the roof line and in the attic.
Step 8. Continue to add Pipe Sections until the
height of the system (before adding the Cap)
meets the minimum building code requirements
as described in (Table 3 and Fig. 17). Note that
for steep roof pitches, the vent height must be
increased. In high wind conditions, nearby trees,
adjoining roof lines, steep pitched roofs, and other
similar factors can result in poor draft, or down
drafting. In these cases, increasing the vent height
or switching to the High Wind Termination Cap
may help to solve the problem.
Step 9. Slip the Storm Collar over the Pipe Sec-
tion, and push it down to the top of the Roof Flash-
ing (Fig. 18). Use non-hardening sealant between
the Storm Collar and the Pipe Section.
Step 10. Holding the bottom of the Termination
Cap only, twist lock the cap onto the last Pipe Sec-
tion protruding above the roof line.
Notes:
(1) For multi-story vertical installations, a Ceiling
Firestop is required at the second oor, and any
subsequent oors (Fig. 19). Refer to Table 1, page
8. Cut and frame a square opening for installation
of the Ceiling Firestop.
(2) If Vent passes through any occupied areas
above the rst oor, including closets and stor-
age spaces, it must be enclosed. The enclosure
may be framed and sheet rocked with standard
construction materials, but required 1" clearance
to combustibles must be maintained. Do not ll
required air spaces with insulation.
(3) If venting system passes through an attic
space the Attic Insulation Shield or a chase en-
closure must be installed to prevent contact be-
tween Pipe Sections and the insulation or other
debris. For the Attic Insulation Shield, nail the base
to oor of attic and adjust shield for appropriate
insulation level, then attach the collar at the top of
assembly (Fig. 19).
Page - 7
CEILING
JOISTS CUT AND
FRAME
FRAMING
34ZDV 6/1/18

Figure 15
There is a 1-7/8" o󰀨set from the center of the support box to the center of the DirectVent Pro 4" x 6 5/8"
center. The Support Box can be installed with this o󰀨set oriented in any direction.
3
Page - 8
1-7/8"
Step 10 - Note 3 continued
For a chase enclosure, it may be con-
structed out of sheetrock or similar building
materials and framed around the support
box or the pipe, maintaining the clearance
to combustibles of 1". For vaulted ceilings
a chase enclosure must be constructed as
the Attic Insulation Shield can not be in-
stalled. Deeper Support Boxes are availble
as well.
Figure 17
Figure 18
Center of Direct-
Vent Pro
Center of
Suport Box

TABLE 3
ROOF PITCH MINIMUM HEIGHT
Feet Meters
Flat to 7/12 1 0.3
Over 7/12 to 8/12 1.5 0.46
Over 8/12 to 9/12 2 0.61
Over 9/12 to 10/12 2.5 0.76
Over 10/12 to 11/12 3.25 0.99
Over 11/12 to 12/12 4 1.22
Over 12/12 to 14/12 5 1.52
Over 14/12 to 16/12 6 1.83
Over 16/12 to 18/12 7 2.13
Over 18/12 to 20/12 7.5 2.29
Over 10/12 to 21/12 8 2.44
Page - 9
CATHEDRAL CEILING
INSTALLATION
Step 1. Follow installation Steps 1 and 2 under
Vertical Terminations.
Step 2. Using the plumb bob, mark Figure 18
the center line of the venting system on the ceil-
ing and drill a small hole through the ceiling and
roof at this point. From the roof, locate the drill
hole and mark the outline of the Cathedral Ceil-
ing Support Box.
Step 3. Remove shingles or other roof cover-
ing as necessary to cut the rectangular hole
for the Support Box (refer to Table 1 for dimen-
sions). Cut the hole 1/8-inch larger than the
Support Box outline.
Step 4. Lower the Support Box through the
hole in the roof until Support Box protrudes at
least 1-inch below the low side of the ceiling
(Fig. 20). Align the Support Box both vertically
and horizontally with a level. Temporarily tack
the Support Box in place through the inside
walls and into the roof sheathing.
Step 5. Using tin snips, cut the Support Box
from the top corners down to the roof line, and
fold the resulting aps over the roof sheathing.
The aps may be trimmed as needed (Fig. 21).
Before nailing it to the roof, run a bead of non-
hardening sealant around the Support Box, to
make a seal between the Support Box and the
roof. Clean out any combustible material from
inside the Support Box.
Step 6. Follow Steps 4 and 5 (page 14) of the
Vertical Installation Instructions.
Step 7. Follow Steps 7 through 10 (page 15 &
16) of the Vertical Installation Instructions.
Step 8. Install the black Trim Collar around the
outside of the Cathedral Ceiling Support Box.
The two pieces of the Trim Collar slide over one
another to allow for easy adjustment around the
Support Box. Using the six (6) screws provided,
secure the four corners and the overlapping
sections of the Trim Collar to the underside of
ceiling. You may want to pre-drill the holes for
the overlapped sections for ease of installation
(Fig. 22).
Figure 19
THE REQUIRED
CLEARANCE FROM
THE OUTSIDE OF
THE DIRECTVENT
PRO 4" X 6 5/8" IS A
MINIMUM OF 1 INCH
TO COMBUSTIBLE
MATERIALS
34ZDV 6/1/18

Page - 10
DuraVent DirectVent Pro GENERAL MAINTENANCE
Conduct an inspection of the venting system annually. Recommended areas to inspect are as follows:
1. Check areas of the Venting System which are exposed to the elements for corrosion. These will ap-
pear as rust spots or streaks, and in extreme cases, holes. These component should immediately be
replaced.
2. Remove the Vertical Termination Cap and shine a ashlight down the Vent. Remove any bird nests,
or other foreign material.
3. Check for evidences of excessive condensation, such as water droplets forming in the inner liner,
and subsequently dripping at joints. Continuous condensate can cause corrosion of caps, pipe, and t-
tings. It
may be caused by having excessive lateral runs, too many elbows, and exterior portions of the system
being exposed to cold weather.
4. Inspect joints to verify that no Pipe Sections or Fittings have been disturbed or loosened.
Also check mechanical supports such as Wall Straps or plumbers tape for rigidity.
Pipe Sections and the insulation or other debris. For the Attic Insulation Shield, nail the base to oor of
attic and adjust shield for appropriate insulation level, then attach the collar at the top of assembly (Fig.
19). For a chase enclosure, it may be constructed out of sheetrock or similar building materials and
framed around the support box or the pipe, maintaining the 1" clearance to combustibles. For vaulted
ceilings a chase enclosure must be constructed as the Attic Insulation Shield can not be installed.
34ZDV 6/1/18

Page - 11
EXHAUST INTAKE
EXHAUST INTAKE
3" Flex
3 inch ex is used from the unit connectors to the support box. It is mandatory that the ends be con-
nected to the correct connections on the support box. The exhaust from the unit must be connected
to the corresponding exhaust connector on the support box. Failure to properly connect the unit
exhaust connector to the support box exhaust connection could result in damage to the venting and
or unit. The ex pipe is not included with the unit. It is available from Malm or your dealer in 25' and
35' lengths.
Step 1. Determine the length of ex needed
from the unit connectors to the Support Box. If
additional ex lengths are needed connect two
sections together using 3 inch connectors.
Step 2. Cut the ex to the length needed. Se-
lect a length to be the Exhaust length and mark
both ends.
Step 3. Connect the section of ex marked as
the Exhaust in Step 2 and Sheet Metal Screw
the Flex Pipe to the Exhaust Connector at Top
of unit hood.
Step 4. Connect the non-marked vent to the
Intake Connector at the top of the unit connec-
tor.
Step 5. The unit connector pipe covers the 3"
ex. The Standard unit includes enough con-
nector pipe for a ceiling height of 96 inches or 8
feet from the oor to the ceiling. This is consists
of 3 - 24 inch lengths of pipe.
1 - Connector Pipe
1 - Mid Pipe Section
1 - Slip Pipe Section
Step 6. Thread the two ex tubes thru the Starter Pipe Section and place the Starter Section into
the unit hood.
Step 7. Insert the Slip Pipe Section into the Mid Section only as far as necessary to make the ex
connection at the Support Box connectors. This should be about 4 inches below the Support Box.
Step 8. Slide the Mid and Slip pipes over the 3 inch ex as you insert the Mid Pipe Section into the
top of the Starter Pipe Section.
Step 9. Connect the marked Exhaust ex tube to the Exhaust connector at the Support Box by
sheet metal screws or hose clamps.
Step 10. Connect the Intake ex tube to the Intake connector of the Support Box by sheet metal
scews or hose clamps and make certain that the connections are secure.
Step 11. Extend the slip section into the Support Box. Make sure that the cleats on the end of the
pipe are locked into the Support Box.
Unit Connector to Support Box Connection
34ZDV 6/1/18

Page - 12
34” Zircon Direct Vent
Through the Wall Vent Installation
The 34 Zircon Direct Vent can be installed with a through the wall kit available from Malm. The through
the wall vent kit consists of the following:
1 - Inner and Outer support box.
1 - Dura Vent 46DVA-GK ex to 4” x 6” to Direct Vent Pro.
1 - Dura Vent 46DVA-HSCH High Wind Sconce Termination.
The clearance to combustibles for the
DirectVent Pro coaxial vent is 2" on the
top of the pipe to a combustible and 1" on
the sides and bottom.
A minimum clearance of 12" must be
maintained from the top of the cover pipe
or elbow to the ceiling.
The horizontal run of venting must be
level, or have a 1/4-inch rise for every
1-foot of run towards the termination.
Never allow the vent to run downward. A
downward slope can trap heat and be-
come a possible re hazard.
The rst step is to locate the center of
the horizontal pipe location. The mini-
mum height is 68” from the oor to
the center of the support box. This is a
minimum height and may be exceeded.
The vent is required to be a minimum of
18” below any eves or roof overhang.
The location of the Horizontal Vent Termination on an exterior wall must meet all local and national
building codes, and must not be easily blocked or obstructed. Termination clearances are as follows:
(a) Clearance above the ground, veranda, porch, deck, or balcony: 12 inches minimum.
(b) Clearance to a window (operable or xed closed) or door: 12 inches minimum.
(c) Vertical clearance to a ventilated so󰀩t located above the Termination Cap (if so󰀩t extends a horizon-
tal distance of 2 feet out over the center line of the termination): 18 inches minimum.
(d) Clearance to an unventilated so󰀩t: 12 inches minimum.
(e) Clearance to an outside corner: as tested by appliance manufacturer.
(f) Clearance to an inside corner: as tested by appliance manufacturer.
(g) Not to be installed above a meter/ regulator assembly within 3 feet horizontally from the center line
of the regulator.
(h) Clearance to a service regulator vent outlet: 6 feet minimum.
(i) Clearance to non-mechanical air supply inlet to a building or the combustion air inlet to any other
appliance: 12 inches minimum.
(j) Clearance to a mechanical air supply inlet: 6 feet minimum.
(k) Clearance above a paved sidewalk or paved driveway located on public property: refer to local code.
(l) Clearance under a veranda, porch, deck or balcony: 12 inches minimum.
EXHAUST
CONNECTOR
34ZDV 6/1/18

Page - 13
Outside Wall
Seal To Wall With
UV Protected
Sealant
Seal Termination
Sconce to Outer
Support Box.
Cover All Screw Heads
With Sealant.
Seal
It is very important to completely seal the
space between the support box and the
side of the house.
The termination sconce must also be
sealed to the outer support box.
All screws must be covered with sealant
as well.
If the location has a stud blocking the installation it must be cross framed prior to installation of
the support box.
The support box requires a 13 1/4 x 13 1/4 framing.
The support box must be installed with the Exhaust connector at the bottom of the box.
Nailing anges are included that can be attached to the support box if needed. They can be set
at 1/2” from the face of the support box. 1/2” sheetrock can then be placed over the nailing strips
for a ush nish to the box.
Secure the support box by screwing the box through the nailing ange to the support framing.
Once the inner support box is placed into the framing the outer support box is installed over the
inner support box. The width of the wall will determine how far the box will extend from the out-
side wall.
Seal the support box to the side of the house with a high grade UV sealant.
The termination sconce can now be installed. The 4” x 6 5/8” pipe from the sconce slips through
the back of the support on onto the 4” x 6 5/8” pipe from the 46DVA-GK. Attach the termination
sconce with sheet metal screws to the outer box.
Seal the back of the sconce to the outer support box where the two pieces meet, Seal over all
sheet metal screws.
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Page - 14
FRONT VIEW OF
WALL SUPPORT
BACK VIEW OF
WALL SUPPORT
SIDE VIEW
WITH 46DVA-GK
INSTALLED OUTER
BOX
46DVA-HSCH
DURA VENT
DIRECTVENT PRO
High-Wind Sconce
Termination Cap
COMPLETE ASSEMBLY
DuraVent DirectVent Pro GENERAL MAINTENANCE
Conduct an inspection of the venting system annually. Recommended areas to inspect are as follows:
1. Check areas of the Venting System which are exposed to the elements for corrosion. These will ap-
pear as rust spots or streaks, and in extreme cases, holes. These component should immediately be
replaced.
2. Remove the Vertical Termination Cap and shine a ashlight down the Vent. Remove any bird nests,
or other foreign material.
3. Check for evidences of excessive condensation, such as water droplets forming in the inner liner,
and subsequently dripping at joints. Continuous condensate can cause corrosion of caps, pipe, and t-
tings. It
may be caused by having excessive lateral runs, too many elbows, and exterior portions of the system
being exposed to cold weather.
4. Inspect joints to verify that no Pipe Sections or Fittings have been disturbed or loosened.
Also check mechanical supports such as Wall Straps or plumbers tape for rigidity.
Pipe Sections and the insulation or other debris. For the Attic Insulation Shield, nail the base to oor of
attic and adjust shield for appropriate insulation level, then attach the collar at the top of assembly (Fig.
19). For a chase enclosure, it may be constructed out of sheetrock or similar building materials and
framed around the support box or the pipe, maintaining the 1" clearance to combustibles as required
by the appliance manufacturer. For vaulted ceilings a chase enclosure must be constructed as the Attic
Insulation Shield can not be installed.
34ZDV 6/1/18

Page - 15 34ZDV 6/1/18
Frame In 13" x 13"
Malm Fireplaces, Inc.
368 Yolanda Avenue
Santa Rosa, Ca 95404
[phone] - [phone]
Fax: [phone]
email: info@malmreplaces.com
Fireplace
Screen
Barrier.
6
A deeper support box available for
pitched or open beam ceilings.
A copy of these instructions are available online at www.malmreplaces.com
It is important to read the Regency Manual and follow the procedures for setting the
Regency unit for your installation.
The vent restrictor must be checked and the burner air shutter for your installation.