Finding the right propane tank involves balancing capacity, safety features, and durability. This guide highlights five Flame King propane tanks that align with larger residential and commercial needs, from portable 20-pound cylinders to large 420-pound ASME tanks. Each selection includes key features, safety certifications, and practical notes for use with heating systems, fireplaces, grills, forklifts, and more. Read on to compare options and choose the best fit for your setup.
| Product | Brand | Approx. Capacity | Key Feature |
|---|---|---|---|
| Flame King 100LB (23 Gal) Steel Tank | Flame King | 100 lb | POL valve, DOT approved, powder-coated |
| Flame King YSN-301 30 Pound Tank | Flame King | 30 lb | OPD valve, pre-purged, DOT/TC certified |
| Flame King YSN420ASME 420LB Tank | Flame King | 420 lb | Pre-installed gauge, remote-read options |
| Flame King YSN335 33.5LB Tank | Flame King | 33.5 lb | Built-in gauge, forklift-ready design |
| Flame King YSN230b 20 Pound Tank | Flame King | 20 lb | OPD valve, built-in gauge, pre-purged |
Note: The selections here are intended to address a range of needs from portable, smaller cylinders to large stationary tanks. Always follow local regulations for storage, transport, and use of propane tanks.
Flame King 100LB Steel Propane Tank
This 100-pound propane tank features high-grade steel welded construction and a premium POL valve assembly. It is DOT approved and undergoes X-ray and hydrostatic testing, with powder-coated exterior protection for durable outdoor use. The combination of a robust build and certified safety components makes it suitable for mixed heating systems, home fireplaces, dryers, and grills that require a larger propane supply. Consider storage and compliance requirements when selecting a tank of this capacity.
Flame King YSN-301 30 Pound Tank
This 30-pound steel propane tank is built from high-grade welded steel and powder coated to resist rust. It ships empty and pre-purged, ready for filling with propane. It includes an Overfill Protection Device (OPD) valve, a safety feature required in many states to prevent overfilling. The tank is X-ray and hydrostatic tested and certified by DOT and Transport Canada, ensuring safe transport in both the US and Canada. Ideal for smaller applications, portable setups, and locations with space constraints.
Flame King YSN420ASME 420LB Tank
The Flame King YSN420ASME is a large, ASME-certified vertical propane tank designed for higher-demand applications. It ships empty and pre-purged, with pre-installed valves including a 1.25-inch ACME fill valve, service valve, and relief valve. It can be equipped with a remote-ready dial for accurate gas level readings. This tank is built to endure warehouse or industrial environments and offers a dependable propane supply for long-running heating or backup power systems.
Flame King YSN335 – 33.5LB Tank
The YSN335 is a versatile forklift-ready steel tank with a built-in gauge for easy monitoring of propane levels. It is designed for durability, with welded steel construction and a powder-coated finish to resist rust and corrosion. The tank ships empty and pre-purged, ready for filling, and its gauge helps prevent unexpected downtime in warehouse or industrial environments. Its compact size makes it suitable for mobile propane needs without sacrificing capacity.
Flame King YSN5LB 5 Pound Tank
This compact 5-pound propane cylinder is ideal for portable grills, fire pits, and heaters. It is empty and pre-purged, with an OPD valve to prevent overfilling and DOT/Transport Canada certification for safe transport. Its lightweight design supports easy transport for on-the-go heating or cooking setups, though it holds a fraction of larger tanks’ capacity.
Flame King YSN230b 20 Pound Tank
Equipped with an OPD valve and a built-in gauge, the YSN230b 20-pound tank provides convenient level readings to prevent surprises during usage. It is pre-purged and ready to fill, with a high-grade welded steel body and powder coating for corrosion resistance. Its compact size makes it suitable for portable systems, outdoor grills, or back-up heating setups where space is limited.
Buying Guide
- Capacity and use case: Larger tanks (like 100 lb or 420 lb) are well-suited for continuous heating, agriculture, or backup power, while 20–30 lb cylinders excel for home grills, small heaters, and portability.
- Valve type and safety features: Look for OPD valves to prevent overfilling and DOT/TC certification to ensure safe transport and handling.
- Pre-purge and ASME ratings: Pre-purged tanks are ready for filling, and ASME certification is critical for vertical storage tanks intended for stationary use.
- Material and finish: Powder-coated steel offers durability against rust and weather, important for outdoor installations.
- Gauge availability: Built-in gauges enable easy monitoring of propane levels, reducing the risk of unexpected outages, especially in forklifts or remote locations.
- Portability vs. permanence: Smaller cylinders are portable and easy to store; larger tanks require secure placement and proper mounting considerations.
- Compliance logistics: Ensure compatibility with local regulations for storage, transport, and fill requirements in your area and for cross-border use if applicable.