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Category: Vent-Free Gas Fireplace
  1. What is a ODS pilot assembly?
  2. What size tank should I use for L.P.?
  3. Why do I get an odor when I operate may fireplace?
  4. Can I convert my gas appliance to another type of gas?
  5. Does my fireplace put off water and if so how much?
  6. Can I install a vent-free gas fireplace in my bedroom?
  7. Can I install a vent-free gas fireplace in my mobile home?
  8. We bought one of your stoves 2 years ago and love it. However, the thermocoupler is faulting and needs replacement. We have misplaced our owners manual. Where can we find a new part or can I order one from you direct. Model #C9740LP serial # 002365.
  9. I recently bought a model C9947L and I wanted to know how many millivolts this was because the thermostat has to be set? Also I would like to know the average usage of LP on this unit?
  10. I just purchased C9947N and installed it Tues. evening (the 15th) from Quality Farm And Fleet, in which is going out of business. I have a considerable amount of carbon monoxide. Everything meets standards in the manual. Had a service technician come out
  11. I have an Ardent 2020 Signature series gas unvented fireplace which seems to have difficulty keeping the pilot lit after shutdown...I have plenty of oxygen in the room so I know that the pilot/thermocoupler just needs cleaned. How can I clean it? Is it difficult to do?



  1. What is a ODS pilot assembly?
    The ODS or Oxygen Depletion Sensor is a pilot assembly including a thermocouple that is attached in a way that is not adjustable and operates in a fixed position. This pilot can only operate when the oxygen level in the room is at least 18%. Normally at sea level our atmosphere will contain an oxygen level of about 21% and at higher elevations above 2500 ft. this will drop to 19%-20% and may cause the pilot to shut off due to the lack of oxygen. How this all operates is by the thermocouple responding to changes in the pilot flame characteristics and, when heated, generates a small current of electricity measured in millivolts, which keeps the gas supply valve in the open position. In the rare instance that the room oxygen level approaches ANSI defined minimums, the flame extinguishes. The loss of flame causes the thermocouple to cool. This cooling reduces the millivolt reading, which causes the gas valve to return to its normally closed position, thus turning off the fuel supply to the appliance. The unit will not operate until the living space is properly ventilated and adequate oxygen is introduced, and the appliance is manually restarted. So you can see that the ODS is a safe and reliable device that assures your family that your vent-free gas fireplace will operate properly. Note:It is not recommended to install vent-free appliances as a primary heat source above 5000 ft. because of pilot outages.
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  2. What size tank should I use for L.P.?
    We recommend checking your local codes first. Expect to use at least a one- hundred-pound cylinder. Using a twenty-pound cylinder may cause problems during extreme cold conditions., i.e., freezing regulator, frost on tank, nuisance shut downs.
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  3. Why do I get an odor when I operate may fireplace?
    Are you using any room deodorizers, burning candles, spraying hair spray, paint, stain shellac, polyurethane, laying new carpet, or is there anything new in the area? Also are there any smokers in the house? If yes, the heater will pick up tobacco smoke and spread it through the house in the form of a yellow film clinging to walls. If you have pets, please also note that animal dander will produce the same results. These heaters will pick up new odors from the environment and spread them throughout the room.
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  4. Can I convert my gas appliance to another type of gas?
    No this is not recommended. The American Gas Association certifies the unit according to the gas type used. Changing this gas type will change the certification, which is not allowed per the AGA. Also, if you were to attempt to convert a unit it would cost more in parts and labor than it would to just purchase a unit for the proper gas. Conversion of any appliance would also void any remaining warranty on the unit.
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  5. Does my fireplace put off water and if so how much?
    All vent-free appliances, whether natural or propane, produce water. The accumulation can range from 3/4 to 1pint of moisture per hour in the room. Under normal conditions, this does not cause a problem. However, if you have a problem, you will need to provide an outlet for this moisture. This can be accomplished by providing adequate ventilation or using a dehumidifier to help control the moisture.
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  6. Can I install a vent-free gas fireplace in my bedroom?
    All vent-free appliances, whether natural or propane, produce water. The accumulation can range from 3/4 to 1pint of moisture per hour in the room. Under normal conditions, this does not cause a problem. However, if you have a problem, you will need to provide an outlet for this moisture. This can be accomplished by providing adequate ventilation or using a dehumidifier to help control the moisture. Yes/No. According to NFPA54, you can install up to 10,000 BTU heaters in a bedroom or up to 6,000 BTU heaters in a bathroom. You must also check your local code to see if this is permitted.
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  7. Can I install a vent-free gas fireplace in my mobile home?
    Check with your local codes. If you do not have a code prohibiting it, your heater or fireplace can be installed in your mobile home.
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  8. We bought one of your stoves 2 years ago and love it. However, the thermocoupler is faulting and needs replacement. We have misplaced our owners manual. Where can we find a new part or can I order one from you direct. Model #C9740LP serial # 002365.
    First, let me say that the 9740 series is a vent-free gas appliance with a ODS Pilot Assembly. Meaning, the thermocouple is part of the pilot assembly. Replacement of the ODS must be as the complete assembly. Including, the proper assembly for the gas specified. NOTE: Common pilot outages are frequently the result of a thermocouple droping millivolts. This does not mean the thermocouple is defective and in most cases it is not. Often simply cleaning the device will correct the situation. Call your local gas installer for seasonal maintenance/service. Also, the ODS Pilot Assembly is avialable through our parts department but is only shipped to qualified gas technicians. Any replacemnet gas component to a gas appliance, especially a vent-free unit, must be performed by qualified professional.
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  9. I recently bought a model C9947L and I wanted to know how many millivolts this was because the thermostat has to be set? Also I would like to know the average usage of LP on this unit?
    145 Millivolts on the Main Operator. 500-750 Millivolts on the ThermoGenerator ( Main Burner ) 18 - 28 Millivolts on the thermocouple ( Pilot Assembly ) You get 91,547 BTU's per Gallon. Your unit on high will burn 39,900 BTU's per hour. === 2 1/2 Hours per Gallon. Remember this is on high and also if you use a wall thermostat it will cut down on the usage from it Cycling so much. If you need further information let me know.
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  10. I just purchased C9947N and installed it Tues. evening (the 15th) from Quality Farm And Fleet, in which is going out of business. I have a considerable amount of carbon monoxide. Everything meets standards in the manual. Had a service technician come out
    If your purchase reciept has Quality farm and Country on the heading then this unit is covered under the full warranty if it was purchased before December 28,2001. All replacement parts are covered for one year from the purchase date.We need a certified Gas tech. to tell us what is wrong with unit and what parts he needs to fix this unit. When you get this information we will send the parts out at no charge to the Gas Co. doing the work. and they can fix the unit . Make sure your reciept shows Quality on the header and the date was prior to Dec. 28th 2001.
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  11. I have an Ardent 2020 Signature series gas unvented fireplace which seems to have difficulty keeping the pilot lit after shutdown...I have plenty of oxygen in the room so I know that the pilot/thermocoupler just needs cleaned. How can I clean it? Is it difficult to do?
    Use emery cloths or steel wool and this will do the job.
    888 visitor(s) thought this was helpful. Do you? Yes, it was helpful No, it was not helpful




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