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VENT-FREE PROPANE/LP GAS HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
FB-20BB
FBS-20BB
FB-30BB
FBS-30BB
FGH-30LPB
20,000 and 30,000
Btu/Hr Models
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result caus-
ing 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 supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency, or the gas supplier.
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
BLUE FLAME
Save this manual for future reference.
®
WARNING: Improper installa-
tion, adjustment, alteration, ser-
vice, or maintenance can cause
injury or property damage. Re-
fer to this manual for correct
installation and operational pro-
cedures. For assistance or addi-
tional information consult a
qualified installer, service
agency, or the gas supplier.
WARNING: This is an unvented
gas-fired heater. It uses air (oxy-
gen) 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 on page 4 of this manual.
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Related Manuals for Glo-warm FB-20BB
Summary of Contents for Glo-warm FB-20BB
- Page 1 BLUE FLAME VENT-FREE PROPANE/LP GAS HEATER OWNER’S OPERATION AND INSTALLATION MANUAL FB-20BB FBS-20BB FB-30BB FBS-30BB ® FGH-30LPB 20,000 and 30,000 Btu/Hr Models WARNING: Improper installa- WARNING: If the information in this manual is not tion, adjustment, alteration, ser- followed exactly, a fire or explosion may result caus- vice, or maintenance can cause ing property damage, personal injury, or loss of life.
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Page 2: Safety Information
BLUE FLAME PROPANE/LP GAS HEATER SAFETY This appliance is only for use with the 11. Never place any objects on the heater. type of gas indicated on the rating plate. 12. Surface of heater becomes very hot INFORMATION This appliance is not convertible for use when running heater. -
Page 3: Product Identification
OWNER’S MANUAL PRODUCT PRODUCT IDENTIFICATION FEATURES Control Knob Ignitor Button SAFETY DEVICE This heater has a pilot with an Oxygen Depletion Sensor Shutoff System (ODS). The ODS/pilot is a required feature for vent- free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air. -
Page 4: Air For Combustion And Ventilation
BLUE FLAME PROPANE/LP GAS HEATER AIR FOR PROVIDING ADEQUATE Confined and Unconfined Space VENTILATION COMBUSTION AND The National Fuel Gas Code (ANS Z223.1, 1992 Section 5.3) defines a confined space The following are excerpts from National VENTILATION as a space whose volume is less than 50 Fuel 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 worksheet 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
BLUE FLAME PROPANE/LP GAS HEATER AIR FOR COMBUSTION AND 12" VENTILATION Continued VENTILATION AIR Ventilation Grills Into Adjoining Room, Ventilation Ventilation Air From Inside Option 2 Grills Building into Adjoining Remove Room, Door into This fresh air would come from an adjoining Option 1 Adjoining unconfined space. -
Page 7: Check Gas Type
OWNER’S MANUAL INSTALLATION LOCATING HEATER IMPORTANT: Vent-free heaters add mois- ture to the air. Although this is beneficial, This heater is designed to be mounted on a wall. installing heater in rooms without enough NOTICE: This heater is intended ventilation air may cause mildew to form for use as supplemental heat. - Page 8 Insert mounting screws through mounting bracket and into Floor wall studs. Models FB-20BB and FBS-20BB Attaching To Wall Anchor This method Figure 8 - Folding Anchor allows you to attach mounting bracket to Figure 7 - Mounting Bracket Clearances hollow walls (wall areas between studs) or to solid walls (concrete or masonry).
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Page 9: Connecting To Gas Supply
Typical Inlet Pipe Diameters 8. Tighten both screws until heater is firmly Horizontal Slots FB-20BB, 3/8" or greater secured to wall. Do not over tighten. FBS-20BB Note: Do not replace front panel at this FB-30BB, 1/2"... -
Page 10: Checking Gas Connections
BLUE FLAME PROPANE/LP GAS HEATER INSTALLATION CHECKING GAS Pressure Testing Gas Supply Piping System CONNECTIONS Continued Test Pressures In Excess Of 1/2 PSIG WARNING: Test all gas pip- Disconnect heater and its individual CAUTION: Use pipe joint seal- ing and connections for leaks manual shutoff valve from gas supply ant that is resistant to liquid pe- after installation or servicing. -
Page 11: Lighting Instructions
OWNER’S MANUAL INSTALLATION OPERATING LIGHTING INSTRUCTIONS Continued HEATER STOP! Read the safety information Pressure Testing Heater Gas THERMOSTAT MODELS above. Connections FBS-20BB AND FBS-30BB 2. Make sure manual shutoff valve is 1. Open manual shutoff valve (see Fig- fully open. ure 14, page 10). -
Page 12: To Turn Off Gas To Appliance
BLUE FLAME PROPANE/LP GAS HEATER OPERATING THERMOSTAT NON-THERMOSTAT MODELS CONTROL FB-20BB, FB-30BB AND HEATER OPERATION FGH-30LPB Continued The thermostatic control used on these FOR YOUR SAFETY models differs from standard thermo- 7. Keep control knob pressed in for 30 READ BEFORE stats. - Page 13 OWNER’S MANUAL OPERATING 8. Keep control knob pressed in for 30 TO TURN OFF GAS seconds after lighting pilot. After 30 HEATER TO APPLIANCE seconds, release control knob. Note: If pilot goes out, repeat steps Shutting Off Heater Continued 3 through 7. Slightly press in control knob and LIGHTING 9.
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Page 14: Inspecting Burner
BLUE FLAME PROPANE/LP GAS HEATER INSPECTING BURNER FLAME PATTERN CLEANING AND BURNER MAINTENANCE Figure 22 shows a correct burner flame pattern. Figure 23 shows an incorrect burner flame pattern. The incorrect burner flame Check pilot flame pattern and burner flame pattern shows yellow tipping of the flame. -
Page 15: Troubleshooting
OWNER’S MANUAL TROUBLESHOOTING CAUTION: Never use a wire, WARNING: Turn off and un- needle, or similar object to clean plug heater and let cool before Note: For additional help, visit DESA ODS/pilot. This can damage ODS/ servicing. Only a qualified ser- International’s Technical Service website pilot unit. - Page 16 BLUE FLAME PROPANE/LP GAS HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice is clogged 1. Clean burner (see Cleaning and Mainte- nance, page 14) or replace burner orifice 2. Burner orifice diameter is too small 2.
- Page 17 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 18: Specifications
BLUE FLAME PROPANE/LP GAS HEATER SPECIFICATIONS FB-20BB FBS-20BB FB-30BB FBS-30BB FGH-30LPB Btu (Variable) 20,000/10,500 20,000/9,000 30,000/15,000 30,000/14,000 30,000/15,000 Type Gas Propane/LP Only Propane/LP Only Propane/LP Only Propane/LP Only P r o p a n e / L P Only Ignition... -
Page 19: Parts Centrals
UHS1000FB FLOOR MOUNTING STAND For all models. Provides better heat distri- Model UH3000BA (Shown) - bution. Makes heater more efficient. Com- (FB-20BB and FBS-20BB) plete installation and operating instructions Model UH5000BA - (FB-30BB, included. FBS-30BB, and FGH-30LPB) Manually-controlled - UH1000FB. Includes For locating heater on the floor, away from ON/OFF switch. -
Page 20: Illustrated Parts Breakdown
BLUE FLAME PROPANE/LP GAS HEATER ILLUSTRATED PARTS BREAKDOWN THERMOSTAT MODELS FBS-20BB FBS-30BB (Shown) 105569... -
Page 21: 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 18 of this manual. THERMOSTAT MODELS FBS-20BB FBS-30BB PART NUMBER FOR FBS-20BB FBS-30BB DESCRIPTION QTY. L98409-10 L98409-09 Cabinet Assembly... - Page 22 BLUE FLAME PROPANE/LP GAS HEATER ILLUSTRATED PARTS BREAKDOWN NON-THERMOSTAT MODELS FB-20BB, FB-30BB, AND FGH-30LPB 105569...
- Page 23 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 18 of this manual. NON-THERMOSTAT MODELS FB-20BB, FB-30BB, AND FGH-30LPB PART NUMBER FOR FB-20BB FB-30BB...
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Page 24: Warranty Information
WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty.
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