2166-303 VALVE, VARIABLE IPI – Propane – Electronic
2166-303 VALVE, VARIABLE IPI – Propane – Electronic
⚠ Special order — Ships in 1–2 weeks
What This Part Does
The 2166-303 gas valve is a Propane LP Electronic control valve that regulates the flow of gas to both the pilot and main burner.
In an electronic (IPI) system, the valve works with the control module to manage ignition, operation, and safety functions.
When a call for heat is made from a thermostat, wall switch, or remote, the control module signals the valve to open. Gas is first directed to the pilot assembly for ignition. Once the pilot flame is proven, the valve opens further to supply gas to the main burner.
This valve also serves a critical safety function. It remains closed when no call for heat is present and automatically shuts off gas flow if a proper flame signal is not detected or if a fault occurs.
Proper valve operation is essential for safe ignition, stable flame performance, and reliable fireplace operation.
Not sure if this is the right part?
Before ordering, check the following:
- Locate your model number (typically behind the lower louver or inside the control compartment)
- Confirm your unit uses a Electronic system
- Confirm your gas type is propane (LP)
- Compare your existing valve to the images provided
⚠️ This part is NOT for a different ignition/control system systems
⚠️ This part is NOT for natural gas (NG) units
If unsure, refer to your manual or contact us for help identifying the correct part.
🔁 Using natural gas (NG) instead of propane (LP)?
This part will not work. View the correct NG version here: SRV2166-302
Compatible Models
Heatilator Gas Fireplaces:
HEIR36-IFT-LP
HEIR42-IFT-LP
HEIR50-IFT-LP
HEIR50-IFT-NG
Heat-N-Glo Gas Fireplaces:
6000C-IPI
TRUE-42C
TRUE-42H
TRUE-42S
System Type
This is an electronic ignition system, commonly called an IPI system or intermittent pilot ignition system. Instead of keeping a pilot flame burning continuously, the fireplace lights the pilot only when there is a call for heat.
IPI systems use a control module to manage ignition, flame sensing, gas valve operation, and safety shutdown functions.
This system commonly includes:
- Control module — controls spark, flame sensing, and gas valve operation.
- Electronic gas valve — opens and closes gas flow to the pilot and main burner.
- Igniter / flame sensor assembly — creates spark and confirms flame presence.
- Battery backup or power supply — provides operating power for ignition and control functions.
These systems offer improved efficiency, remote-control compatibility, and added safety features, but they also include more electronic components than a millivolt system.
Common Problems This Valve Fixes
If your fireplace uses an electronic ignition (IPI) system, the gas valve works together with the control module to regulate gas flow to the pilot and main burner. When the valve begins to fail, it can cause ignition issues, shutdowns, or inconsistent operation.
Replacing the valve often resolves the following problems:
- Spark is present but pilot will not light
The valve may not be opening to allow gas to the pilot assembly. - Pilot lights but main burner will not turn on
The valve is not opening to supply gas to the burner after pilot flame is proven. - Fireplace starts but shuts down shortly after
The valve may be failing to maintain proper gas flow during operation. - Delayed ignition or small “whoosh” at startup
Inconsistent gas delivery from the valve can cause delayed burner ignition. - No gas flow to pilot or burner
A failed valve may prevent gas from reaching the ignition system entirely. - Clicking or sparking continues without ignition
The system is attempting to light, but the valve is not delivering gas. - Intermittent operation or random shutdowns
Internal valve components may be failing or overheating. - Weak or unstable burner flame
Improper gas regulation inside the valve can affect flame performance.
Important Note
Many of these symptoms can also be caused by a faulty control module, flame sensor issues, igniter problems, wiring faults, or improper gas pressure. Proper diagnosis is strongly recommended before replacing the valve.
Warranty Information
This product includes a 12-month warranty from the date of purchase. This warranty covers defects in materials or workmanship under normal operating conditions.
Fireplace components must be properly installed and matched to the correct system (millivolt vs IPI, natural gas vs propane).
This warranty does NOT cover:
• Improper installation or incorrect application
• Use with the wrong gas type (NG vs LP)
• Misdiagnosis of the issue
• Damage caused by other failing components
• Normal wear and tear
• Labor, service, or diagnostic time
Because many fireplace issues can be caused by multiple components, we strongly recommend confirming the diagnosis before replacing parts.
We are happy to assist with this. Proof of purchase is required for all warranty claims. Please contact us prior to removal or replacement of the part so we can help verify the issue and guide the warranty process.
How do I know if my valve is bad?
Common signs of a failing gas valve include the pilot staying lit but the burner not turning on, no response from a wall switch or remote, intermittent operation, or the burner shutting off unexpectedly.
In some cases, the valve may fail to open and allow gas to flow, even though the system is calling for heat. You may also notice inconsistent flame behavior or complete loss of burner function.
Before replacing the valve, it is important to verify that other components such as the thermopile, thermocouple, ignition module, or wiring are functioning properly, as these can cause similar symptoms.
How difficult is this part to replace?
Replacing a gas valve is considered a moderate to advanced repair because it involves working with gas lines and critical safety components.
The process typically requires shutting off the gas supply, disconnecting and reconnecting fittings, and ensuring all connections are properly sealed and leak-free. In many cases, adjustments or system checks are also needed after installation.
For safety and proper operation, installation is recommended to be performed by a qualified technician.
Is this a safe DIY repair?
Gas valve replacement involves working with gas lines and safety-critical components, so it is generally not recommended as a DIY repair for most homeowners.
Improper installation can result in gas leaks, unsafe operation, or damage to the fireplace system. Correct procedures, proper tools, and leak testing are essential to ensure safe operation.
For safety and reliability, installation is recommended to be performed by a qualified technician.
Do I need any special tools to install this?
Gas valve replacement typically requires standard hand tools such as wrenches and screwdrivers, along with gas-rated thread sealant or tape for proper sealing of fittings.
A manometer may also be needed to verify proper gas pressure after installation, and leak detection solution is required to ensure all connections are safe and secure.
Because proper setup and testing are critical for safe operation, installation is recommended to be performed by a qualified technician.