Modine 3H0369730001 Conversion Kit

The Modine 3H0369730001 is a job-site essential for converting Modine Hot Dawg HD and HDS unit heaters from natural gas to liquid propane. This LP conversion kit is the direct engineering replacement for the legacy 3H36973-1 part number, ensuring a precise match for gas manifold pressures and orifice sizing. As a critical HVAC repair part, it includes the necessary high-quality springs and orifices required to maintain optimal combustion efficiency and burner safety at the manifold. Proper installation is vital for preventing soot accumulation and ensuring the heater operates within its specified BTU range after the fuel switch. This kit allows contractors to adapt existing inventory to propane-fed systems without replacing the entire unit, making it a staple for rural or off-grid installations where natural gas lines are unavailable. Verify model size and manifold pressure settings during commissioning to ensure the modine gas valve conversion meets local mechanical codes.

• OEM Compatibility: Designed specifically as the successor to 3H36973-1 for a drop-in fit.
• System Efficiency: Maintains the natural gas to propane conversion ratio required for high-altitude or standard performance.
• Safe Combustion: Corrects the fuel-to-air mixture to prevent carbon monoxide issues and flame lifting.
• Durable Components: Includes industrial-grade orifices and regulator springs tested for long-term reliability.

Is the 3H0369730001 compatible with all Hot Dawg models?
This kit is specifically engineered for the 30,000 to 45,000 BTU Modine HD/HDS models. Always cross-reference the unit's serial plate with the conversion chart to ensure the orifice size matches your specific heater capacity.

Can I reuse the natural gas regulator spring?
No, the propane conversion process requires the specific heavy-duty spring included in this kit to handle the higher pressure requirements of LP gas systems.

How do I confirm this is the right replacement for 3H36973-1?
Modine has superseded the older part number with the 3H0369730001; it is functionally identical but manufactured to meet the latest technical tolerances for modern gas valves.

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.