Gas fireplace terminology can make choosing a replacement remote or understanding your owner’s manual harder than it needs to be. This glossary explains common gas plumbing and fireplace control terms, from BTU and gas pressure to millivolt valves, pilot lights, and remote receivers.
Choosing a fireplace remote? Start with your appliance’s ignition system, control requirements, and existing receiver model. Natural gas or propane identifies the fuel, but fuel type alone does not tell you which remote will work.
Use these definitions to understand your equipment and discuss options with a fireplace specialist. Follow the appliance manufacturer’s instructions, and have gas piping, fuel conversions, and valve service handled by a qualified professional.
A
Air Mixer: A component that mixes air with gas before it reaches the burner. Often used with propane fire pit burners, it must match the burner and fuel configuration. An air mixer and an orifice perform different jobs, even when they are part of the same assembly.
B
BTU: British thermal unit, a unit of heat energy. Gas appliance ratings are commonly expressed in BTU per hour. An input rating describes the rate of fuel energy supplied to the appliance; it is not the same as useful heat delivered to the room or the gas pressure required.
Burner Pan: A tray that supports the burner, fire media, or both, depending on the appliance design. Use the pan and media arrangement specified for your fireplace or fire pit.
Burner Ring: A ring-shaped burner with openings that release gas to create flames. It is one of several burner shapes commonly used in fire pits.
C
Conversion Kit (NG/LP): Manufacturer-specified parts for changing an approved appliance from natural gas to propane or vice versa. Not every appliance is convertible. Fuel conversion requires the correct kit and qualified service; a remote control cannot change the fuel type.
CSA Certification: Product certification by CSA Group to applicable standards. The certification mark and product listing identify the scope of that certification. Certification does not replace the installation instructions or local requirements.
D
Dry Contact: A switching connection that opens or closes a circuit without supplying voltage to it. Some fireplace remote receivers use dry contacts to control a compatible appliance. Dry-contact controls are not interchangeable with controls that supply voltage.
E
Electronic Ignition: An ignition system that uses electrically powered components to light the burner or pilot. Control modules, power requirements, and remote compatibility vary by system. Electronic ignition does not automatically mean an appliance supports any aftermarket remote.
Enclosure: The structure surrounding a fire feature. For a fire pit, this may be a masonry or metal structure supporting the burner assembly. A fireplace enclosure must also meet the appliance requirements for materials, clearances, ventilation, and service access.
F
Fire Glass: Glass manufactured for use as decorative media in compatible gas fire features. Ordinary glass is not a substitute. The appliance instructions determine the approved glass type, quantity, and placement.
Fire Media: Decorative material approved for a gas burner, such as fire glass, lava rock, or ceramic logs. Media selection and placement can affect burner and pilot operation. Use the materials and arrangement specified for the appliance.
Flame Sensor: A component that helps an ignition or safety system detect flame. If flame is not established or is lost, the control system responds according to its design, which may include stopping gas flow and attempting a limited ignition retry.
Flange Extension: An extension used with a compatible key valve assembly when the finished enclosure wall places the decorative flange farther from the valve. The required extension depends on the valve design and wall thickness.
Flexible Gas Line: A general description for flexible gas piping or an appliance connector. Corrugated stainless steel tubing, appliance connectors, and listed gas hoses have different applications and installation requirements. They are not interchangeable simply because they bend.
G
Gas Line: Piping that carries gas from the supply to an appliance. Available capacity depends on factors including fuel type, pipe size, length, fittings, pressure, and connected loads. A qualified professional determines the correct piping for the installation.
Gas Logs: Manufactured logs designed for use with a compatible gas burner system. Log placement is part of the appliance design, not simply a decorating choice. Use the specified logs and positioning instructions.
Gas Regulator: A device that controls gas pressure downstream of the supply. A regulator must suit the fuel, pressure requirements, and system design. It is separate from the handheld remote and does not make an incompatible control system compatible.
Gas Source: Where the fuel supply originates, such as a natural gas utility connection or a propane storage tank. The appliance must be configured for the actual fuel supplied.
Gas Supply: The fuel available to the appliance, including its delivery pressure and flow capacity. Both must meet the appliance requirements. Adequate pressure alone does not establish that the piping can serve every connected appliance.
I
Ignition System: The components and method used to light a gas appliance. Examples include manual lighting, standing-pilot systems, and electronic ignition. Identifying the ignition system is an essential part of selecting a compatible fireplace control.
Inside Dimension: The clear measurement within an opening or enclosure. For fire pit projects, it helps establish the space available for a burner and pan. It does not replace the separate clearances or support dimensions in the installation instructions.
Installation Collar: A support used with some fire pit pans to hold the pan within the enclosure opening. Collar type and installation depend on the pan and enclosure design.
Intermittent Pilot Ignition (IPI): An electronic system that lights the pilot when the appliance calls for heat or operation, rather than keeping it burning continuously in its intermittent mode. Some systems also offer a continuous-pilot setting. Remote controls must be compatible with the specific ignition system.
K
Key Valve: A manually operated gas valve turned with a removable key, commonly used with fire pits and some fireplace installations. A key valve is not a remote receiver, and adding a handheld remote alone cannot operate it.
L
Lava Rock: Porous volcanic rock used as media in compatible gas fire features. Lava rock can retain moisture, so it should not be described as moisture-free. Follow the appliance instructions for approved media, storage, drying, and startup.
Liquid Propane (LP): Propane stored as a liquid under pressure in a tank. Typical residential gas fireplaces use propane vapor delivered through the appropriate supply and regulation system. See also Propane.
Local Codes: Applicable building, fuel-gas, mechanical, and other requirements enforced by the local authority. Permits, inspections, and installation requirements depend on the location and project. Product instructions and local requirements both matter.
M
Media: Another name for fire media, including approved glass, rock, or logs. See Fire Media for selection and placement considerations.
Millivolt System: A gas control system that uses the small electrical output of a heated thermopile to operate a compatible gas valve. Many fireplace remotes are designed for this type of system, but the appliance instructions and remote specifications must confirm compatibility.
N
Natural Gas (NG): A gaseous fuel consisting primarily of methane, commonly supplied through utility piping. A natural gas appliance must use the components and supply conditions specified for that fuel. Propane parts are not automatically suitable substitutes.
O
Orifice: A precisely sized opening that meters gas flow to a burner or pilot. Orifice selection depends on the appliance design, fuel, and operating conditions. It is not the same as an air mixer and should not be drilled or substituted as a DIY adjustment.
Oxygen Depletion Sensor (ODS): A safety pilot system used in many vent-free gas appliances that is designed to shut down the appliance when oxygen falls below its designed operating threshold. An ODS is not a carbon monoxide alarm and must not be bypassed.
P
Pairing: The process of linking a compatible transmitter and receiver so the receiver recognizes the remote signal. Pairing procedures vary by model. Pairing cannot make incompatible transmitters, receivers, or appliance controls work together.
Pilot Light: A small flame used to ignite the main burner. A standing pilot stays lit between uses until it is shut off; an intermittent pilot lights as part of the ignition sequence. Which type your fireplace uses affects how its controls operate.
Pressure: The force exerted by gas within the supply or appliance system, commonly expressed in inches of water column or PSI. Pressure is different from flow rate and BTU input. Required inlet and manifold pressures are appliance-specific.
Propane: A fuel commonly stored in tanks as liquefied petroleum gas and supplied to residential fireplaces as vapor. Propane appliances require the correct fuel-specific components and gas supply. See also Liquid Propane (LP).
PSI: Pounds per square inch, a unit of pressure. Gas-system specifications may use PSI or inches of water column. Use the units and operating limits stated in the appliance instructions rather than assuming a pressure setting is universal.
R
Receiver: The part of a fireplace remote system that receives commands from the transmitter and communicates with the appliance controls. It may be a separate box or part of an integrated control system. Replacement receivers must match both the transmitter and the appliance interface.
Regulator: Another name for a gas regulator. See Gas Regulator for how this component controls pressure in the gas system.
S
Shut-Off Valve: A valve used to stop gas flow to an appliance or section of piping. Turning a fireplace off with its remote is not the same as isolating its gas supply for service.
Spark Ignition: Ignition that uses a spark to light gas at a pilot or burner. A spark may come from a manually operated piezo igniter or an electronic ignition system. The presence of a push button alone does not establish remote compatibility.
Standing Pilot: A pilot flame that remains lit between burner cycles until it is shut off. Many standing-pilot fireplaces use millivolt controls, but the pilot style alone is not enough to identify the correct replacement remote.
T
Thermocouple: A device that produces a small electrical signal when heated by a pilot flame. In many standing-pilot safety systems, that signal helps hold the safety valve open; loss of pilot heat allows the valve to close. It is not interchangeable with a thermopile.
Thermopile: A group of thermocouples that converts pilot heat into electrical energy. In a millivolt fireplace system, it provides power for the gas-valve control circuit. The remote receiver controls the circuit; it does not replace the thermopile.
Thermostatic Remote: A compatible remote system that can call for heat based on a temperature setting. Temperature sensing and burner operation vary by model. Thermostat mode does not automatically include flame-height adjustment.
Transmitter: The handheld remote or other control that sends commands to a compatible receiver. Similar button layouts, brand names, or operating frequencies do not by themselves establish that two devices will work together.
V
Valve: A component that starts, stops, or regulates gas flow. Manual valves, millivolt valves, motor-operated valves, and electronic control valves use different operating methods. Valve and ignition-system compatibility matter more than the appearance of the remote.
Vent: An opening or passage serving a specific airflow purpose. Fireplace venting may carry combustion exhaust and, in a direct-vent system, bring in outside combustion air. Fire pit enclosure vents serve different ventilation requirements. These openings are not interchangeable.
Venturi: A shaped passage that uses moving gas to draw air into the mixture before combustion. This principle is used in some air-mixing assemblies. Venturi, air mixer, and orifice describe related concepts or components, not identical parts.
W
Water Column: A way of expressing pressure, commonly written as inches of water column, in. w.c., or WC in gas-appliance documentation. It may appear in inlet-pressure and manifold-pressure specifications. It is a pressure measurement, not a measure of heat output.
Frequently Asked Questions
What information should I have before buying a replacement fireplace remote?
Have the fireplace make and model, the existing transmitter and receiver model numbers, and the appliance manual available. If accessible without removing service components, photos of the receiver label and control-system label can help identify the setup. A matching brand name alone is not enough to confirm compatibility.
Can a remote turn a manual gas fireplace into a remote-controlled fireplace?
A handheld remote alone cannot operate a manual gas valve. Some appliances support a manufacturer-approved control upgrade, while others do not. Have a qualified fireplace professional confirm the available options for your exact appliance before buying a conversion or control kit.
Will a new fireplace remote let me adjust the flame height?
Only if the appliance, valve or control module, and remote system support that function together. An on/off receiver does not add flame-height control to a valve that lacks a compatible adjustment mechanism.
Does a fireplace that will not turn on always need a new remote?
No. The problem may involve transmitter or receiver power, pairing, a control setting, the pilot or ignition system, or the appliance itself. Follow the model-specific owner troubleshooting instructions before ordering parts, and leave gas-system or internal electrical diagnosis to a qualified professional.
Final Thoughts
Knowing the difference between a gas-supply component and a fireplace control helps you ask better questions and avoid ordering the wrong part. For remote replacement, gather your appliance and control model numbers before comparing features.
Use our fireplace remote control replacement guide as a starting point, or ask the Fireplace Remote Controls team for help checking your options against the appliance requirements.
