VENT-FREE GAS STOVE OWNER’S OPERATION AND INSTALLATION MANUAL MODEL: DF25SMS SKU: 170091 PFS ® US 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 v icinity of this or any other appliance. — WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance.
TABLE OF CONTENTS Safety......................................................... 3 Qualified Installing Agency......................... 4 Specifications............................................. 5 Product Features........................................ 5 Local Codes............................................... 5 Product Identification.................................. 6 Unpacking.................................................. 6 Water Vapor: A By-Product Of Unvented Room Heaters....................
SAFETY IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate, or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning. Failure to follow these instructions will void the warranty. Only a qualified installer, service agent, or local gas supplier may install and service this product.
SAFETY 1. Do not place Propane/LP supply tank(s) inside any structure. Propane/LP supply tank(s) must be placed outdoors. 2. This heater shall not be installed in a bedroom or bathroom. 3. This heater needs fresh air ventilation to run properly. This heater has an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, pages 7 and 8. If heater keeps shutting off, see Troubleshooting, page 22. 4.
SPECIFICATIONS Model DF25SMS Gas Type Natural Gas Propane Gas Input Rating, Max. 23,000 Btu/Hr 23,000 Btu/Hr Input Rating, Min. 14,000 Btu/Hr 19,000 Btu/Hr Electronic Piezo Electronic Piezo Ignition Pressure Regulator Setting Inlet Gas Pressure* (inches of water) (*for purposes of input adjustment) 4" W.C. 9" W.C. Maximum 9.5" Maximum 14" Minimum 5" Minimum 11" Heater Dimensions (HxWxD) • 27.32" × 25.98" × 16" Carton Dimensions (HxWxD) • 29.68" × 28.35" × 18.
PRODUCT IDENTIFICATION Screen Logs Heater Controls (Inside Panel) Figure 1 - Vent-Free Stove UNPACKING 1. 2. 3. 4. 5. Remove top inner pack. Tilt carton so that heater is upright. Remove protective side packaging. Slide heater out of carton. Remove protective plastic wrap. 6. 7. 8. 9. Hold the screen, lift, and pull forward. Remove log set by cutting plastic ties. Carefully unwrap log. Check for any shipping damage. If heater or log is damaged, promptly inform your dealer where you bought the heater.
AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. Today’s homes are built more energy efficient than ever. New materials, increased insulation and new construction methods help reduce heat loss in homes.
12" Ventilation Grills Into Adjoining Room, Ventilation VENTILATION Option 2 AIR FOR COMBUSTION AND Or Grills into Adjoining Room, Option 1 VENTILATION AIR Remove Door into Adjoining Room, Option 3 Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space.
INSTALLATION NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. This will help circulate the heat throughout the house. In the event of a power outage, you can use this heater as your primary heat source. WARNING: A qualified service person must install heater. Follow all local codes.
INSTALLATION GAS SELECTION This appliance is factory preset for propane/LP gas. No changes are required for connecting to propane/LP. Only a qualified installer or service technician can perform gas selection and connecting to gas supply. CAUTION: Two gas line installations at the same time are prohibited. Back of Stove LP The inlet regulator is color coded for identification of the correct gas type. Blue is for propane (LP gas) and yellow is for natural gas.
INSTALLATION 2. Apply thread sealant to the threads on the connection fitting. While pushing in, rotate the fitting clockwise until the threads engage the regulator. After the fitting has been hand tightened into the regulator use a wrench to complete tightening of the fitting. Install additional fitting to connect to the house supply. FOR NATURAL GAS (NG) INSTALLATION: YELLOW 1. Remove the blue dust cover from the regulator. Use only the cap supplied on the regulator.
INSTALLATION CONNECTING TO GAS SUPPLY WARNING: A qualified service technician must connect heater to gas supply. Follow all local codes. WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: For natural gas, Never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas. CAUTION: For propane/LP gas, never connect heater directly to the gas supply. This heater requires an external regulator (not supplied).
INSTALLATION For propane/LP installations, apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves. The installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11" and 14" of w.c. If you do not reduce incoming gas pressure, heater regulator damage could occur.
INSTALLATION CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints. If bubbles form, there is a leak. Correct all leaks at once. PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1/2 PSIG (3.5 kPa) 1.
INSTALLATION PRESSURE TESTING HEATER GAS CONNECTIONS 1. Open equipment shutoff valve (see Figure 12, page 14). Apply a noncorrosive leak 10, page 14). detection fluid to all joints. Bubbles forming show a leak. 2. Open main gas valve located on or near gas meter for natural gas or open pro- 5. Correct all leaks at once. pane/LP supply tank valve. 6. Light heater (see Lighting Instructions on 3. Make sure control knob of heater is in the page 18 or 19). Check all other internal OFF position.
INSTALLATION 4. Place pins on log #4 into holes to the left of the burner as shown in Figure 13, page 15, and Figure 15. 5. Place pins on log #8 into holes to the right of the burner as shown in Figure 13, page 15, and Figure 15. 6. Place pin on log #5 into hole in the left side of log #1 as shown in Figures 15 and 16. Hole for Log #5 7. Place log #6 into cutouts in log #1 and log #2 as shown in Figure 16. 8. Place pin on log #7 into hole in the right side of log #1 as shown in Figures 15 and 16.
INSTALLATION Component Type of Battery Qty. Ignitor AAA 1 AAA Battery Positive UP Ignitor Unscrew ignitor cap and install a AAA battery with the + pointing out. Replace cap. Figure 17 - Installing Battery in Ignitor OPERATION FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand.
OPERATION MODEL DF25SMS LIGHTING INSTRUCTIONS WARNING: You must operate this heater with the door closed and in the locked position. Make sure screen is installed before running heater. NOTICE: During initial operation of new heater, burning logs will give off a paper-burning smell. Orange flame will also be present. Open damper or window to vent smell. This will only last a few hours. 1. STOP! Read the safety information on page 17. 2. Make sure equipment shutoff valve is fully open. 3.
OPERATION THERMOSTAT CONTROL OPERATION The thermostatic control used on this model differs from standard thermostats. Standard thermostats simply turn the burner on and off. The thermostat used on this heater senses the room temperature. At times the room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set temperature. The control knob can be set to any comfort level between Low (1) and HIGH (5).
INSPECTING BURNERS IMPORTANT: Owner’s should check pilot flame pattern and burner flame pattern often. Incorrect flame patterns indicate the need for cleaning (see Care and Maintenance, page 21 or service. WARNING: Only a qualified service person should service and repair heater. This includes maintenance requiring replacement or alteration of components. PILOT FLAME PATTERN Figure 19 shows a correct pilot flame pattern. Figure 20 shows an incorrect pilot flame pattern.
CARE AND MAINTENANCE WARNING: Turn off heater and let cool before servicing. CAUTION: You must keep control areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service technician. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc. WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.
CARE AND MAINTENANCE ODS/PILOT Use a vacuum cleaner, pressurized air, or a small, soft bristled brush to clean. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about 2" from where the pilot flame comes out of the pilot assembly (see Figure 24). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available.
TROUBLESHOOTING Problem Possible Cause Corrective Action Using natural gas and pilot will not light. Inlet pressure exceeds 9.5" WC. Bypass pressure switch. See instructions below. Problem The entire gas delivery piping including connections inside the heater should be leak tested by the qualified installer. After leak testing the qualified installer should light the appliance. Refer to the correct flame pattern as illustrated on page 20. All flame patterns should be safely inside the product.
TROUBLESHOOTING Problem Possible Cause When ignitor button is 1. Gas supply is turned off or pressed in there is a equipment shutoff valve is spark at ODS/pilot but closed. no ignition. 2. C o n t r o l k n o b n o t f u l l y pressed in while pressing ignitor button. 3. Air in gas lines (new installation or recent gas interruption). 4. ODS / pilot is clogged. Corrective Action 1. Turn on gas supply or open equipment shutoff valve. 2. Fully press in control knob while pressing ignitor button. 3.
TROUBLESHOOTING Problem Possible Cause Corrective Action Burner backfiring during 1. Burner orifice is clogged or 1. Clean burner orifice (see combustion. damaged. Care and Maintenance, page 21) or replace burner orifice. 2. Burner is damaged. 2. Contact dealer or customer 3. Gas regulator is damaged. service. 3. Replace gas regulator. High yellow flame during 1. Not enough air. burner combustion. 1. Check burner for dirt and debris. If found, clean burner (see Care and Maintenance, page 21). 2.
TROUBLESHOOTING Problem Possible Cause Corrective Action Heater produces un- 1. Heater is burning vapors from 1. Ventilate room. Stop using wanted odors. paint, hair spray, glues, etc. odor causing products while See IMPORTANT statement, heater is running. page 25. 2. Gas leak. See Warning State- 2. Locate and correct all leaks ment at the top of page 22. (see Checking Gas Connections, page 14). 3 Low fuel supply. 3. Refill supply tank (Propane/ LP models). Heater shuts off in use 1.
PARTS MODEL DF25SMS HSE-MAN-013 www.factorybuysdirect.
PARTS MODEL DF25SMS This list contains replaceable parts for your heater. When ordering replacement parts, follow the instructions listed under Replacement Parts on page 31 of this manual.
PARTS MODEL DF25SMS HSE-MAN-013 www.factorybuysdirect.
PARTS MODEL DF25SMS This list contains replaceable parts for your heater. When ordering replacement parts, follow the instructions listed under Replacement Parts on page 31 of this manual.
REPLACEMENT PARTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement parts, call Customer Service toll free at 1-855-607-6557 for referral information.
WARRANTY KEEP THIS WARRANTY Model ________________________________ Serial No. _____________________________ Date Purchased ________________________ Keep receipt for warranty verification. REGISTER YOUR PRODUCT AT WWW.FACTORYBUYSDIRECT.