Flame King 150,000 BTU Horizontal Mounted 2-Stage Propane

Flame King’s horizontal 2-stage propane regulator delivers steady 11-inch WC outlet pressure and up to 150,000 BTU/hr capacity for large RVs, food trucks, and generators. This regulator is built to replace single-stage or worn factory regulators when you need reliable, consistent pressure for multiple high-BTU appliances. The dual-stage design reduces pressure fluctuation as tank pressure changes, while the POL inlet and 3/8"-18NPT outlet give secure connections to 100 lb or ASME tanks and standard RV gas lines. Constructed from heavy-duty aluminum with solid brass fittings and a top vent, it prioritizes durability and safe venting in horizontal installations.

How does a two-stage regulator improve propane performance?

A two-stage regulator stages pressure reduction across two diaphragms so downstream pressure stays closer to the target even as tank pressure rises or falls. This results in smoother appliance operation and fewer nuisance shutoffs when multiple burners or heaters run simultaneously.

• Reduces pressure fluctuation under variable demand
• Delivers consistent 11-inch water column outlet pressure
• Makes high-BTU appliances run more reliably

Will this regulator fit my RV, trailer, or generator setup?

The Flame King regulator uses a POL (inlet) connection compatible with common 100 lb and ASME propane tanks and a 3/8"-18NPT outlet to mate with standard RV gas lines or manifolds. It is designed for horizontal mounting, so confirm mounting orientation and line routing before installation.

• POL inlet for large cylinder compatibility
• 3/8"-18NPT outlet for typical RV plumbing
• Horizontal mount recommended—check installation space

How much heating and appliance load can it support?

This regulator is rated for 150,000 BTU/hr total capacity and an outlet pressure of 11 inches water column, making it suitable for larger RVs, commercial vehicles, and standby generators with high combined BTU demand. It’s not intended for systems that require specialty pressures outside standard LP appliance ranges.

• 150,000 BTU/hr maximum capacity
• 11-inch WC outlet pressure for standard appliances
• Vent hole at top for safe pressure relief

What materials and safety features are included?

The regulator body is heavy-duty aluminum with solid brass fittings where it matters—ensuring secure, leak-resistant connections at the tank and outlet. A top-mounted vent provides a controlled path for any internal venting, and the robust construction helps resist corrosion and mechanical wear in road and outdoor environments.

• Aluminum body for strength and reduced weight
• Solid brass inlet/outlet fittings for leak resistance
• Top vent for safe pressure relief in horizontal configuration

This Flame King regulator is for RV owners, vanlifers, food truck operators, and anyone running multiple high-BTU appliances from a single large propane tank or generator feed. Choose it when you need a durable, higher-capacity replacement that maintains steady gas pressure across changing tank conditions and heavy appliance loads. Always follow local codes and, if unsure, have a qualified technician install and leak-test the regulator before use.

FAQ

Q: Is this regulator compatible with 100 lb propane tanks?

A: Yes. The POL inlet is compatible with standard 100 lb and ASME propane tanks for horizontal mounting.

Q: Can it run multiple high-BTU appliances at once?

A: Yes. It supports up to 150,000 BTU/hr total and maintains an 11-inch WC outlet for stable appliance operation.