
Laars Heating Systems R0336800 Gas Valve
The Laars Heating Systems R0336800 Gas Valve is an essential OEM replacement component engineered for high-performance combustion control in pool heaters and hydronic boilers. This combination gas valve is specifically configured for liquid propane (LP) applications, featuring a 3/4" NPT connection size and a 24V electrical rating for seamless integration with existing 24VAC control systems. It is factory-set to a 4" WC (water column) manifold pressure, ensuring precise gas flow regulation and optimal thermal efficiency for systems like the Laars Pennant and Mighty Therm series.
As a veteran technician knows, maintaining correct ignition timing and burner pressure is critical for preventing sooting and ensuring safe operation. The R0336800 serves as a reliable solution for replacing worn or failing valves that exhibit erratic manifold pressure or internal diaphragm failure. Professional installation is required to verify inlet pressure—which must not exceed 13" WC—and to ensure the secondary 24V circuit is properly grounded for consistent flame rectification. Relying on this genuine Laars replacement part guarantees component compatibility and minimizes downtime during critical heating seasons.
Key Benefits- Precise LP Regulation: Factory-calibrated to 4" WC manifold pressure for stable liquid propane combustion.
- Standard Connectivity: Features 3/4" gas valve ports for straightforward piping into high-capacity boilers.
- 24V AC Control: Fully compatible with standard HVAC ignition modules and Laars integrated controls.
- Heavy-Duty Construction: Built to withstand the high-cycle demands of commercial and residential pool heating environments.
Can I use this gas valve for a Natural Gas (NG) system?
No, the R0336800 is specifically configured for liquid propane with a 4" WC setting. Using an LP valve on a natural gas system without a certified conversion kit can result in dangerous combustion conditions.
What are the symptoms of a failing Laars gas valve?
Common indicators include the burner failing to ignite despite a 24V signal, inconsistent blue/yellow flame patterns, or the unit shutting down due to low manifold pressure.
Is this a direct replacement for Jandy or Zodiac units?
Yes, because many Jandy and Zodiac heaters utilize the Laars R0336800, it is the standard replacement for compatible LX/LT models manufactured pre-2003.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $312.55
-65%$312.55
$109.39Laars Heating Systems R0336800 Gas Valve
The Laars Heating Systems R0336800 Gas Valve is an essential OEM replacement component engineered for high-performance combustion control in pool heaters and hydronic boilers. This combination gas valve is specifically configured for liquid propane (LP) applications, featuring a 3/4" NPT connection size and a 24V electrical rating for seamless integration with existing 24VAC control systems. It is factory-set to a 4" WC (water column) manifold pressure, ensuring precise gas flow regulation and optimal thermal efficiency for systems like the Laars Pennant and Mighty Therm series.
As a veteran technician knows, maintaining correct ignition timing and burner pressure is critical for preventing sooting and ensuring safe operation. The R0336800 serves as a reliable solution for replacing worn or failing valves that exhibit erratic manifold pressure or internal diaphragm failure. Professional installation is required to verify inlet pressure—which must not exceed 13" WC—and to ensure the secondary 24V circuit is properly grounded for consistent flame rectification. Relying on this genuine Laars replacement part guarantees component compatibility and minimizes downtime during critical heating seasons.
Key Benefits- Precise LP Regulation: Factory-calibrated to 4" WC manifold pressure for stable liquid propane combustion.
- Standard Connectivity: Features 3/4" gas valve ports for straightforward piping into high-capacity boilers.
- 24V AC Control: Fully compatible with standard HVAC ignition modules and Laars integrated controls.
- Heavy-Duty Construction: Built to withstand the high-cycle demands of commercial and residential pool heating environments.
Can I use this gas valve for a Natural Gas (NG) system?
No, the R0336800 is specifically configured for liquid propane with a 4" WC setting. Using an LP valve on a natural gas system without a certified conversion kit can result in dangerous combustion conditions.
What are the symptoms of a failing Laars gas valve?
Common indicators include the burner failing to ignite despite a 24V signal, inconsistent blue/yellow flame patterns, or the unit shutting down due to low manifold pressure.
Is this a direct replacement for Jandy or Zodiac units?
Yes, because many Jandy and Zodiac heaters utilize the Laars R0336800, it is the standard replacement for compatible LX/LT models manufactured pre-2003.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Laars Heating Systems R0336800 Gas Valve is an essential OEM replacement component engineered for high-performance combustion control in pool heaters and hydronic boilers. This combination gas valve is specifically configured for liquid propane (LP) applications, featuring a 3/4" NPT connection size and a 24V electrical rating for seamless integration with existing 24VAC control systems. It is factory-set to a 4" WC (water column) manifold pressure, ensuring precise gas flow regulation and optimal thermal efficiency for systems like the Laars Pennant and Mighty Therm series.
As a veteran technician knows, maintaining correct ignition timing and burner pressure is critical for preventing sooting and ensuring safe operation. The R0336800 serves as a reliable solution for replacing worn or failing valves that exhibit erratic manifold pressure or internal diaphragm failure. Professional installation is required to verify inlet pressure—which must not exceed 13" WC—and to ensure the secondary 24V circuit is properly grounded for consistent flame rectification. Relying on this genuine Laars replacement part guarantees component compatibility and minimizes downtime during critical heating seasons.
Key Benefits- Precise LP Regulation: Factory-calibrated to 4" WC manifold pressure for stable liquid propane combustion.
- Standard Connectivity: Features 3/4" gas valve ports for straightforward piping into high-capacity boilers.
- 24V AC Control: Fully compatible with standard HVAC ignition modules and Laars integrated controls.
- Heavy-Duty Construction: Built to withstand the high-cycle demands of commercial and residential pool heating environments.
Can I use this gas valve for a Natural Gas (NG) system?
No, the R0336800 is specifically configured for liquid propane with a 4" WC setting. Using an LP valve on a natural gas system without a certified conversion kit can result in dangerous combustion conditions.
What are the symptoms of a failing Laars gas valve?
Common indicators include the burner failing to ignite despite a 24V signal, inconsistent blue/yellow flame patterns, or the unit shutting down due to low manifold pressure.
Is this a direct replacement for Jandy or Zodiac units?
Yes, because many Jandy and Zodiac heaters utilize the Laars R0336800, it is the standard replacement for compatible LX/LT models manufactured pre-2003.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












