Comfort Glow CGD3018P Owner's Operation And Installation Manual
Mountain oak, premium aged split oak, and yellow flame unvented (vent-free) propane/lp gas log heaters
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MOUNTAIN OAK, PREMIUM AGED SPLIT OAK,
AND YELLOW FLAME UNVENTED
(VENT-FREE) PROPANE/LP GAS LOG HEATERS
OWNER'S OPERATION AND INSTALLATION MANUAL
CGD3018P
CY2718P
CGD3924P
CY3124P
CGD3930P
18", 24", and 30"
Variable Manually-
Controlled Models
(Also Designed Certified as
Vented Decorative Appliance)
WARNING: If the information in this
manual is not followed exactly, a fire or
explosion may result causing property
damage, personal injury, or loss of life.
— Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
— 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.
• Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas sup-
plier, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency, or the gas supplier.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which
it is installed. Provisions for adequate combustion and ventilation air must be provided.
Refer to Air for Combustion and Ventilation section in this manual.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited
by state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
This appliance is only for use with type of gas indicated on the rating plate.
This appliance is not convertible for use with other gases.
(Yellow Flame Model Shown)
Save this manual for future reference.
CGD3924PT CGD3930PT
CGD3018PT CGB3924PT
Thermostatically-Controlled
WARNING: Improper installation, adjust-
ment, alteration, service, or maintenance
can cause injury or property damage. Re-
fer to this manual for correct installation
and operational procedures. For assis-
tance or additional information consult a
qualified installer, service agency, or the
gas supplier.
WARNING: This appliance is for installation
only in a solid-fuel burning masonry or UL127
factory-built fireplace, or in an approved
ventless firebox. It is design-certified for
these installations in accordance with ANSI
Z21.11.2. Exception: Do not install this ap-
pliance in a factory-built fireplace that in-
cludes instructions stating it has not been
tested or should not be used with unvented
gas logs.
CGB3930PT
18", 24" and 30"
Models
®
Patent Pending
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Table of Contents
Related Manuals for Comfort Glow CGD3018P
Summary of Contents for Comfort Glow CGD3018P
- Page 1 MOUNTAIN OAK, PREMIUM AGED SPLIT OAK, AND YELLOW FLAME UNVENTED (VENT-FREE) PROPANE/LP GAS LOG HEATERS OWNER’S OPERATION AND INSTALLATION MANUAL CGD3924PT CGD3930PT CGD3018PT CGB3924PT CGD3018P CY2718P CGB3930PT CGD3924P CY3124P 18", 24" and 30" CGD3930P Thermostatically-Controlled 18", 24", and 30" Models...
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Page 2: Safety Information
VENT-FREE PROPANE/LP GAS LOG HEATER SAFETY To prevent performance problems, do 11. Do not allow fans to blow directly into not use propane fuel tank of less than the fireplace. Avoid any drafts that al- INFORMATION 100 lbs. capacity. ter burner flame patterns. Ceiling fans can create drafts that alter burner flame If you smell gas patterns. -
Page 3: Product Identification
OWNER’S MANUAL PRODUCT LOCAL CODES IDENTIFICATION Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Crossover Log Back Log Code ANSI Z223.1, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. -
Page 4: Air For Combustion And Ventilation
VENT-FREE PROPANE/LP GAS LOG HEATER AIR FOR PROVIDING ADEQUATE Confined and Unconfined Space VENTILATION COMBUSTION AND The National Fuel Gas Code (ANSI Z223.1, 1992 Section 5.3) defines a confined space The following is excerpts from National Fuel VENTILATION as a space whose volume is less than 50 Gas Code. -
Page 5: Determining Fresh-Air Flow For Heater Location
OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. -
Page 6: Ventilation Air
VENT-FREE PROPANE/LP GAS LOG HEATER AIR FOR 12" COMBUSTION AND VENTILATION Ventilation Continued Ventilation Grills Grills Into Adjoining Room, Into Adjoining VENTILATION AIR Option 2 Room, Remove Ventilation Air From Inside Option 1 Door into Building Adjoining This fresh air would come from an adjoining Room, unconfined space. -
Page 7: Check Gas Type
OWNER’S MANUAL INSTALLATION LOG SIZING REQUIREMENTS WARNING: Never install the heater Minimum Firebox Size NOTICE: This heater is intended • in a bedroom or bathroom un- Front Rear* for use as supplemental heat. Use less installed as a vented ap- Size Height Depth Width Width this heater along with your pri- pliance (Variable Manually-... - Page 8 VENT-FREE PROPANE/LP GAS LOG HEATER INSTALLATION If Using Mantel Continued You must have non-combustible material(s) above the fireplace opening. Non-combus- NOTICE: You may use non-ther- tible materials (such as slate, marble, tile, mostat heater as a vented prod- etc.) must be at least 1/2 inch thick. With uct.
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Page 9: Mantel Clearances
OWNER’S MANUAL INSTALLATION Mantel Shelf 10" Continued Underside of 8" Mantel Shelf MANTEL CLEARANCES 6" " In addition to meeting non-combustible material clearances, you must also meet All minimum required clearances between fireplace open- distances are ing and mantel shelf. If you do not meet the in inches clearances in Figure 7, you will need a hood. -
Page 10: Installing Damper Clamp Accessory For Vented Operation
VENT-FREE PROPANE/LP GAS LOG HEATER INSTALLATION Continued Damper Clamp INSTALLING DAMPER CLAMP ACCESSORY FOR Damper VENTED OPERATION Note: When used as a vented heater, appli- ance must be installed only in a solid-fuel Damper burning fireplace with a working flue and Clamp constructed of non-combustible material. -
Page 11: Installing Heater Base Assembly
OWNER’S MANUAL INSTALLATION Installation Items Needed Mark screw locations through holes in mounting brackets (see Figure 13). If • hardware package (provided with heater) Continued installing in a brick-bottom fireplace, • approved flexible gas hose (not provided) mark screw locations in mortar joint of INSTALLING HEATER BASE (if allowed by local codes) bricks. -
Page 12: Connecting To Gas Supply
VENT-FREE PROPANE/LP GAS LOG HEATER INSTALLATION Propane Apply pipe joint sealant lightly to male Supply threads. This will prevent excess sealant Continued Tank from going into pipe. Excess sealant in pipe CONNECTING TO GAS could result in clogged heater valves. SUPPLY External CAUTION: Use pipe joint seal-... -
Page 13: Checking Gas Connections
OWNER’S MANUAL INSTALLATION Test Pressures Equal To or Less Than Pressure Testing Heater Gas Con- 1/2 PSIG nections Continued 1. Close manual shutoff valve (see Fig- Open manual shutoff valve (see Fig- CHECKING GAS ure 17). ure 17). CONNECTIONS 2. Pressurize supply piping system by ei- Open propane supply tank valve. -
Page 14: Installing Logs
VENT-FREE PROPANE/LP GAS LOG HEATER INSTALLATION Front Log (#3) Back Log Continued (#1) Recess INSTALLING LOGS Hole in CAUTION: After installation Grate Base and periodically thereafter, check to ensure that no flame comes in contact with any log. With the heater set to high, check to see if flames contact any log. - Page 15 OWNER’S MANUAL INSTALLATION 4. Locate the notches in the bottom of the Front Log (#4) front log (#4). Place the front log on Continued the grate fingers. Make sure the notches Notches of the front log line up with the grate Dual Burner Premium Aged fingers.
- Page 16 VENT-FREE PROPANE/LP GAS LOG HEATER INSTALLATION Back Log (#1) Crossover Continued Log (#3) Single Burner Mountain Oak Models Hole in WARNING: Failure to position Notch Grate the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury.
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Page 17: Operating Heater
OWNER’S MANUAL OPERATING Wait five (5) minutes to clear out any LIGHTING gas. Then smell for gas, including HEATER INSTRUCTIONS near the floor. If you smell gas, STOP! Follow “B” in the safety in- Manually-Controlled Models formation above. If you don’t smell WARNING gas, go to the next step. - Page 18 VENT-FREE PROPANE/LP GAS LOG HEATER OPERATING Thermostatically-Controlled LIGHTING Models HEATER INSTRUCTIONS Continued FOR YOUR SAFETY WARNING READ BEFORE • If fireplace has glass doors, VARIABLE CONTROL LIGHTING never operate this heater with OPERATION glass doors closed. If you op- WARNING: If you do not fol- erate heater with doors closed, The variable control valve can be set to low these instructions exactly, a...
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Page 19: To Turn Off Gas To Appliance
OWNER’S MANUAL OPERATING MANUAL LIGHTING HEATER PROCEDURE Continued Follow steps 1 through 5 under Light- ing Instructions, pages 18 and 19. 5. Turn control knob counterclockwise Depress control knob and light pilot to the PILOT position. C-clockwise Ignitor Button with match. Control Knob Press in control knob for five (5) sec- Keep control knob pressed in for 30... -
Page 20: Inspecting Burners
VENT-FREE PROPANE/LP GAS LOG HEATER INSPECTING MAIN BURNER BURNER PRIMARY AIR HOLES BURNERS Periodically inspect all burner flame holes with the heater running. All slotted burner Air is drawn into the burner through the 8 flame holes should be open with yellow Check pilot flame pattern and burner flame holes in the brass fitting at the burner en- flame present. -
Page 21: Troubleshooting
OWNER’S MANUAL TROUBLESHOOTING CAUTION: Never use a wire, WARNING: Turn off and un- Note: All troubleshooting items are listed needle, or similar object to clean plug heater and let cool before in order of operation. ODS/pilot. This can damage ODS/ servicing. - Page 22 VENT-FREE PROPANE/LP GAS LOG HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does light after ODS/pilot is lit Burner orifice clogged Clean burner (see Cleaning and Main- tenance, page 20) or replace burner orifice Inlet gas pressure is too low Contact local propane gas company Burner orifice diameter is too small Replace burner orifice...
- Page 23 OWNER’S MANUAL TROUBLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
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Page 24: Optional Positioning Of Thermostat Sensing Bulb
VENT-FREE PROPANE/LP GAS LOG HEATER OPTIONAL The mounting clip must be a minimum of 3" from bottom of fireplace to pre- Thermostat POSITIONING OF Sensing vent crimping of capillary. Once you Bulb have decided on a location, clean the THERMOSTAT area thoroughly. -
Page 25: Service Hints
OWNER’S MANUAL SERVICE HINTS TECHNICAL REPLACEMENT SERVICE PARTS When Gas Pressure Is Too Low Note: Use only original replacement parts. • pilot will not stay lit This will protect your warranty coverage for You may have further questions about in- •... -
Page 26: Parts Central
VENT-FREE PROPANE/LP GAS LOG HEATER PARTS CENTRAL These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. Baltimore Electric Washer Equipment Co. Halco Enterprises 1348 Dixwell Avenue 1715 Main Street 208 Carter Drive, Unit 21 Hamden, CT 06514 Kansas City, MO 64108... - Page 27 OWNER’S MANUAL ACCESSORIES DAMPER CLAMP - GA6080 (Not Shown) Purchase these fireplace accessories from For variably controlled models. Permanently your local dealer. If they can not supply these opens chimney flue damper for vented op- accessories, call DESA International’s Sales eration (see Installing Damper Clamp Ac- Department at 1-800-472-7879 for referral cessory for Vented Operation, page 10).
- Page 28 VENT-FREE PROPANE/LP GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Variable Manually-Controlled Yellow Flame Models CGD3018P CGD3924P CGD3930P 104341...
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Page 29: Parts List
OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual. Variable Manually-Controlled Yellow Flame Models CGD3018P CGD3924P CGD3930P CGD3018P CGD3924P CGD3930P... -
Page 30: Illustrated Parts Breakdown
VENT-FREE PROPANE/LP GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Premium Aged Split Oak Models CGB3924PT CGB3930PT 104341... - Page 31 OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual. Thermostatically-Controlled Premium Aged Split Oak Models CGB3924PT CGB3930PT CGB3924PT CGB3930PT PART NUMBER PART NUMBER DESCRIPTION QTY.
- Page 32 VENT-FREE PROPANE/LP GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Yellow Flame Models CGD3018PT CGD3924PT CGD3930PT 104341...
- Page 33 OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual. Thermostatically-Controlled Yellow Flame Models CGD3018PT CGD3924PT CGD3930PT CGD3018PT CGD3924PT CGD3930PT PART NUMBER PART NUMBER PART NUMBER DESCRIPTION...
- Page 34 VENT-FREE PROPANE/LP GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Variable Manually-Controlled Mountain Oak Models CY2718P CY3124P 104341...
- Page 35 OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual. Variable Manually-Controlled Mountain Oak Models CY2718P CY3124P CY2718P CY3124P PART NUMBER PART NUMBER DESCRIPTION QTY.
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Page 36: Warranty Information
We make no other warranty, expressed or implied. LIMITED WARRANTY COMFORT GLOW VENT-FREE PROPANE GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.