GAS CONVERSION KIT FOR FIREPLACES WITH ELECTRONIC IGNITION
PROPANE TO NATURAL GAS (ECOFLOW VALVE)
[FOR USE IN FIREPLACE MODELS LISTED IN TABLE 1 ON PAGE 2]
DRAFT
09/12/2017
KIT COMPONENTS
Main Burner Orifice, Low-Rate Orifice, Conversion Sticker and
Conversion Sticker Form (to be filled out and affixed by installer)
REQUIRED TOOLS AND SUPPLIES
Safety Gloves, Adjustable Wrench, Channel Locks, Flat Blade
Screwdriver, 4mm Allen Wrench (for some pilot assemblies - see
Figure 7), 5/16” Nutdriver, Pipe Joint Compound or Teflon Tape
TURN OFF THE GAS SUPPLY TO THE APPLIANCE. DISCONNECT
ELECTRICAL POWER SUPPLY.
READ ALL THE STEPS BEFORE STARTING THE CONVERSION. IN-
STALLER NOTICE: THESE INSTRUCTIONS MUST BE LEFT WITH THE
APPLIANCE.
When installing gas components use pipe joint compound or
Teflon tape on all pipe fittings before installing (Do not use pipe
joint compounds on flare fittings).
NOTE: THE FIREPLACE MUST BE OFF AND COLD BEFORE PERFORM-
ING THE GAS CONVERSION.
ALL WARNINGS, PRECAUTIONS AND INSTRUCTIONS IN THE INSTAL-
LATION AND OPERATION MANUAL PROVIDED WITH THE APPLIANCE
APPLY TO THESE INSTRUCTIONS.
GENERAL INFORMATION
Gas conversion kits are available to adapt the fireplace from the
use of one type of gas to the use of another. These kits contain all
the necessary components needed to complete the task including
labeling that must be affixed to ensure safe operation.
WARNING
This conversion kit shall be installed by a qualified
service agency in accordance with the manufac-
turer's instructions and all applicable codes and
requirements of the authority having jurisdiction. If
the information in these instructions is not followed
exactly, a fire, explosion or production of carbon
monoxide may result causing property damage,
personal injury or loss of life. The qualified service
agency performing this installation is responsible
for the proper installation of this kit and assumes
responsibility for this conversion. The installation
is not proper and complete until the operation of the
converted appliance is checked as specified in the
manufacturers instructions supplied with the kit.
IMPORTANT LE CANADA SEULEMENT
La conversion devra être effectuée conformément aux
recommandations des autorités provinciales ayant
juridiction et conformément aux exigences du code
d'installation CAN/CSA B149.1.
IMPORTANT CANADA
The conversion shall be carried out in accordance with
the requirements of the provincial authorities having
jurisdiction and in accordance with the requirements
of the CAN/CSA B149.1 Installation code.
AVERTISSEMENT
Cet équipement de conversion sera installé par
une agence qualifiée de service conformément aux
instructions du fabricant et toutes exigences et codes
applicables de l'autorisés avoir la juridiction. Si
l'information dans cette instruction n'est pas suivie
exactement, un feu, explosion ou production de
protoxyde de carbone peut résulter le dommages
causer de propriété, perte ou blessure personnelle de
vie. L'agence qualifiée de service est esponsable de
l'installation propre de cet équipment. L'installation
n'est pas propre et compléte jusqu'à l'opération de
l'appareil converti est chéque suivant les critères
établis dans les instructions de propriétaire provi-
sionnées avec l'équipement.
ECOFLOW GAS CONVERSION KITS
P/N 900751-00
Rev. B, 09/2017
HEARTH PRODUCTS
KITS AND ACCESSORIES
IHP.us.com
900751-00B 1
IHP.us.com 900751-00B
2
Gas Conversion Kits, Propane Gas (LP) to Natural Gas (NG)
Cat. No. Model Ecoflow Electronic Model Fireplace
F2905 GCK-SKT385131PN AltairDLX40DEN-B, DRT4240DEN-B
F2907 GCK-SKT325031PN AltairDLX45TEN-B, DRT4245TEN-B
F2897 GCK-SKT425531PN Altair40DEN-B, DRT4040DEN-B
F2901 GCK-SKT415531PN Altair45DEN-B, DRT4045DEN-B
Table 1
Installing Gas Conversion Kits
CAUTION
The gas supply shall be shut OFF prior to discon-
necting the electrical power, before proceeding with
the conversion.
ATTENTION
Avant d’effecteur la conversion, coupez d’abord
l’alimentation en gaz, ensuite, coupez l’alimentation
electrique.
GAS CONVERSION INSTRUCTIONS
IMPORTANT NOTE: When installing gas components use pipe joint com-
pound or Teflon tape on all pipe fittings before installing (ensure pro-
pane resistant compounds are used, do not use pipe joint compounds
on flare fittings).
Step 1. Remove the front and rear burner assemblies, per instructions
A through C below.
IMPORTANT
The burner orifice provided in this kit are only for use
at elevations of 0 to 2,000 feet (610 M) in the USA
and 0 to 4,500 feet (0-1372 M) in Canada. At higher
elevations the BTU input must be de-rated by 4% for
every 1,000 feet (305 M) to maintain the proper ratio
of gas to air. If the installer must convert the unit to
adjust for varying altitudes, a deration information
sticker must be filled out by the installer and adhered
to the appliance at the time of the conversion. Contact
your local gas supplier for deration requirements for
your area.
1. TURN OFF THE GAS SUPPLY TO THE FIREPLACE. Disconnect
power supply at the circuit breaker. Ensure fireplace is cold.
2. Remove the barrier, facade, and glass door per instruction in the
Installation and Operation Manual.
3. Open the lower control compartment door.
4. Remove the logs per instruction in the Installation and Operation
Manual. If necessary, remove the log grate. Exercise care so as
not to break the logs.
5. Perform the following conversion instructions:
A. Remove the screw from the Air Shutter Lever, that controls the rear
burner air shutter, per instructions in Figure 1A.
B. Disconnect the Air Shutter Arm from the Air Shutter Lever, per instruc-
tions in Figure 1B. Remove Air Shutter Lever.
C. Remove the screws that secure the burner assemblies. Lift out burner
assemblies.
Figure 1A - REAR Air Shutter Adjustment Lever
Figure 1B - REAR Air Shutter Adjustment Arm
The adjustment lever for the rear air shutter is located in the lower control
compartment. Remove the hex screw that secures the lever as shown in
this picture.
Disconnect the rear air shutter arm from the lever.
Rear Air Shutter Adjustment Lever
Remove Hex Screw
REMOVE LEVER SCREW
Rear Air Shutter Arm
Lever
DISCONNECT SHUTTER ARM
900751-00B 3
IHP.us.com
Figure 2 - Burner Orifice
Figure 4
Figure 3
Step 3. Remove the low-rate orifice from the valve and replace with the
orifice supplied in kit. See Figure 3.
Step 4. Remove the regulator set plug. See Figure 4.
Step 2. Replace front and rear Burner Orifices (see Figure 2). replace the
front and rear burner orifices with the orifices supplied in this kit.
IMPORTANT NOTE: The front and rear burner orifices are different sizes.
Refer to Table 5 on Page 6 for verification of proper front and rear burner
orifice sizes, supplied in kit.
Figure 6 - Pilot Hood
Figure 5A
Figure 5B - Stem Plug, Natural Gas Positioning
Step 5A. Change the Stem Position on the Plug. See Figures 5A and 5B.
Step 5B. Figure 5B shows the stem plug positioning for Natural Gas.
Step 6. Pull the pilot hood straight up to remove and expose the pilot
orifice.
Pilot Hood
Maxitrol
7U
NOTE: Some kits may have this alternate
(equivalent) version of the stem plug
See note in Figure 3B
IHP.us.com 900751-00B
4
Step 8. Reinstall pilot hood. See Figure 6.
Step 9. Retrieve the burner and hold the venturi tube above the orifice.
Place the shutter adjusting rod in the slot of the shutter arm (Figure 8). Set
the burner assembly into its position and secure the trapezoidal plate with
the two screws previously removed.
Step 10. Reinstall the baffle with the two baffle securing screws.
Step 11. Reinstall the log set. See log set installation and door assembly
installation in the installation and operation manual.
NOTE: Rear air shutter rod is attached to lever under the firebox.
Step 12. Reinstall the glass door.
Step 13. Turn on gas supply and test for gas leaks, using a gas leak test
solution—also known as bubble leak solution.
NOTE: Using a soapy water solution is an effective leak test solution but
it is not recommended, because the soap residue that is left on the pipes/
fittings can result in corrosion over time.
Step 7. For natural gas, turn counter-clockwise until it stops (do not tight-
en). See Figure 7.
Step 14. Adjust the burner air shutter per instructions in the Installation
and Operation manuals and Table 2 and Figures 6 and 7.
CAUTION: The air shutter should never be set so as to make the tips of
the flames sooty or create sooting on the viewing glass, logs, or media.
If soot begins to form after burning, the air shutter should be opened
gradually until the sooting condition stops. Gas quality and gas pres-
sure may vary, which can affect the burning characteristics of the ap-
pliance.
WARNING
Never use an open flame to check for leaks.
BURNER AIR SHUTTER ADJUSTMENT INSTRUCTIONS
1. Adjust the air shutters per instructions in Figures 8A and 8B and Table 2.
2. Light the fireplace. Follow the lighting procedure on the lighting label in
the control compartment.
3. Allow the burner to operate for at least fifteen (15) minutes while
observing the flame continuously to ensure that the proper flame
appearance is achieved (Figure 9). If the following conditions are
present, adjust accordingly.
• If flame appears weak or sooty, adjust the air shutter, incrementally,
to a more open position until the proper flame appearance is
achieved.
• If flame remains blue, adjust the air shutter, incrementally, to a
more closed position until the proper flame appearance is achieved.
4. When satisfied that the burner flame appearance is normal, reinstall the
lower control compartment door, then proceed to finish the installation.
Burner Air Shutter Settings
Models Natural Gas
Front Air Shutter Rear Air Shutter
All 1/16”
(1.6 mm)
1/8”
(3.2 mm)
Table 2
Figure 7 - Turn Pilot Orifice
Pilot Assemblies may vary. Type ‘A’ pilot will require a flat standard
screwdriver and Type ‘B’ pilot will require a 4mm allen wrench.
A
B
A. Light the fireplace (refer to the lighting instructions label in the control
compartment).
B. Brush all joints and connections with the gas leak test solution to
check for leaks. If bubbles are formed, or gas odor is detected, turn
off the appliance. Either tighten or refasten the leaking connection, and
then retest as described above.
C. When the gas lines are tested and leak free, rinse off the leak testing
solution.
900751-00B 5
IHP.us.com
Figure 9 - Burner Flame Appearance
Figure 8A - FRONT Air Shutter Setting
Figure 8B - REAR Air Shutter Setting
Figure 10 - Pilot Flame Appearance
No Blue Flame
Center
Soot at
Flame Tip
Dark Orange
Flame
IMPROPERLY
BURNING FLAME
Soot above
Flame Tip No Soot at
Flame Tip
PROPERLY
BURNING FLAME
Semi-Transparent
Yellow Flame
Blue Flame
Center
Pilot
Hood
Sensor
Ignitor
Igniter
Pilot Hood
Thermocouple
Pilot Hood
Thermocouple
Igniter
Step 16. Ensure the proper relationship of the pilot to the main burner as
shown in Figure 9.
Air Shutter
Adjustment
Rod Down
(Fully-Open
Position)
Burner
Tube
Adjustment
Rod Up
(Fully-Closed
Position)
Adjustment
Set-Screw
The adjustment rod for the front air shutter is
located in the lower control compartment. See
Table 2 for the standard adjustment setting.
Closed
Open
The adjustment lever for the rear air shutter is located in the lower control
compartment. See Table 2 for the standard adjustment setting.
Closed
Open
Rear Air Shutter Adjustment Lever
Step 15. Relight the main burner. The lighting instructions can be found on
the lighting label in the control compartment. Verify proper burner ignition
and operation (Figure 9).
Inspect the pilot system for proper flame. The pilot flame should engulf the
flame sensor (Figure 11).
Using a manometer, test the inlet and manifold gas pressures (Tables 3–4,
Page 6). The inlet pressure is tested at elbow fitting removable plug and
the outlet pressure is tested at gas valve outlet test port (see Figures 14
and 15 on Page 6).
THIS APPLIANCE HAS BEEN CONVERTED TO:
INPUT BTU / HR - ##, ###
MANIFOLD PRESSURE - 3.5”
ORIFICE SIZE: ## (#.##”)
NATURAL GAS
Figure 12 - Affix Gas Conversion Sticker
Figure 11 - Ensure Proper Alignment Between Pilot And Burner
Step 17. Affix the supplied gas conversion sticker next to the rating plate
label stating this unit has been converted to natural gas. See Figure 12.
Burner
Pilot Hood
Igniter
Flame
Sensor
Burner Ports
3/4” ± 1/16”
Always test pressures with the valve regulator control at the highest
setting.
6
Inlet Gas Supply Pressure
Fuel # Minimum Maximum
Natural Gas 5” WC (1.25 kPa) 10.5” WC (2.61 kPa)
Table 3
Manifold Gas Supply Pressure
Fuel # Pressure
Natural Gas 3.5” WC (0.87 kPa)
Table 4
BTU Input
Models Natural Gas
High Rate Low Rate
AltairDLX 40-B, DRT4240-B 36,000 24,000
AltairDLX 45-B, DRT4245-B 42,000 25,000
Altair40-B, DRT4040-B 28,000 20,000
Altair45-B, DRT4045-B 31,000 21,000
Table 6
REFERENCE INFORMATION
Burner Orifice Sizes
Fireplace Models Natural Gas - drill size
AltairDLX 40-B, DRT4240-B #38 (.101”) rear,
#51 (.067”) front
AltairDLX 45-B, DRT4245-B #32 (.116”) rear,
#50 (.070”) front
Altair40-B, DRT4040-B #42 (0.0935”) Rear
#55 (0.052”) Front
Altair45-B, DRT4045-B #41 (0.096”) Rear,
#55 (0.052”) Front
Table 5
Printed in U.S.A. © 2016 Innovative Hearth Products
P/N 900751-00 Rev. B 09/2017
IHP reserves the right to make changes at any time, without notice, in design, materials, specifications, prices and also to discontinue colors, styles and products. Consult your local distributor for
fireplace code information.
IHP
1508 Elm Hill Pike, Suite 108 • Nashville, TN 37210
Gas Pressure Test Points
The outlet manifold test gauge connection is provided on the valve stem (see
Figure 14). The inlet line gas pressure test point is shown in Figure 15. The
control valves have a 3/8” (10 mm) NPT thread inlet and outlet side of the
valve.
Outlet Pressure
Test Point
Some parts have been removed for clarity
1/8” Inlet gas pressure ‘test point’ plug (in control compartment)
Testing Inlet Gas Pressure (Qualified Technicians Only):
1. Turn off gas shutoff valve and electrical.
2. Remove 1/8” plug (shown in diagram below).
3. Install an 1/8” nipple in place of plug.
4. Connect manometer to nipple, using an 1/8” NPT air hose nipple/
fitting.
5. Turn on shutoff valve and check for proper inlet gas pressure.
6. Reverse steps 1-5.
Figure 15 - Ecoflow Inlet Gas Pressure Test Point
Figure 14 - Ecoflow Electronic Valve
Figure 13 - Fill Out and Affix Gas Conversion Form Sticker
Step 18. Fill out, then affix the supplied gas conversion form sticker next
to the rating plate. See Figure 13.
Step 19. Reinstall the facade, and barrier.
NOTE: A BARRIER DESIGNED TO REDUCE THE RISK OF BURNS
FROM HOT VIEWING GLASS SHALL BE USED DURING OPERA-
TION OF THIS FIREPLACE FOR THE PROTECTION OF CHILDREN
AND OTHER AT-RISK INDIVIDUALS.
“ THIS APPLIANCE HAS BEEN CONVERTED ON (MM/DD/YY)
________________ TO _____________ GAS WITH KIT NO.
_______________ BY (NAME AND ADDRESS OF ____________
_______________________________________ ORIGANIZATION
MAKING THIS CONVERSION), WHICH ACCEPTS THE
RESPONSIBILITY THAT THIS CONVERSION HAS BEEN
PROPERLY MADE.”
“CET APPAREIL ELAIT CONVERT SUR LE (MM/DD/YY)
________________ A _______________ GAZ AVEC
L’EQUIPEMENT NO. ____________________ PAR (NOM ET
ADRESSE_____________________________________________
D’ORGANISATION FAISANT CETTE CONVERSION), QUI ACCEPTE
LA RESPONSABILITE QUE CETTE CONVERSION A ETE FAITE
CORRECTEMENT”. LB-104682A
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Astria Fireplaces DRT4240/45-OLD Instruction Sheet
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