Walmart offers EDX 48,000 BTU Propane Patio Heater, Comes with Double Heating Grid and Wheels，Portable Design for Home, Commercial, Brown for $72.99 (orig. $299.99) with free shipping.

Product Description:
A propane heater is a device used to heat spaces by burning propane gas. It is commonly used in outdoor settings such as construction sites, camping, and outdoor events. The heater works by igniting propane gas, which then heats up a series of coils or a ceramic element. The heat generated is then dispersed into the surrounding area via natural convection. Propane heaters are portable, efficient, and provide a quick source of heat.

• • 【Optimal Heating Performance】The standard models of this propane heater offer an impressive 48,000 BTUs of heating power. Within just one minute, the heat emanating from the central positioning can effectively spread across an 18-foot diameter, creating a warming environment perfect for gatherings of 4-8 individuals.
• • 【Premium Durability and Safety】Featuring a durable double-layer heating grid crafted from high-quality 304 stainless steel, this heater excels in both strength and longevity. The double-layer design surpasses traditional single-layer burners by providing increased durability and safety, ensuring a reliable and secure heating experience for all users.
• • 【Convenient and Functional Design】The inclusion of a round cover on top of the heater adds a convenient touch by offering a space to place snacks, drinks, phones, or other small items. This practical feature enhances the versatility and functionality of the propane heater, catering to various user needs.
• • 【Easy Mobility and Placement】Equipped with bottom wheels, this heater is designed for seamless movement and convenient placement. Users can effortlessly transport the heater to desired locations, allowing for flexible use and ensuring efficient heating wherever it is needed.
• • 【Certified Quality Assurance】Rest assured that this product has undergone rigorous testing and successfully obtained ETL certification, guaranteeing high standards of safety and performance. Customers can confidently rely on this propane heater for superior quality, reliability, and functionality in their outdoors.
• • 【Advanced Safety Features】Designed with a comprehensive safety protection system, this patio heater ensures peace of mind during use. In the event that the propane heater tilts beyond 45 degrees, the tip-over protection system will automatically extinguish the flame. Furthermore, if the flame goes out, the flame-out protection system will promptly shut off the gas supply, prioritizing the safety of users and their surroundings.