Patio heater: Get a gas patio heater. Pyramid heater: Made with durable powder coated iron, the pyramid heater features a heat-resistant quartz tube and is suitable for use in tents and gazebos! Options: Choose from a mushroom or pyramid-style heater. Mushroom heater: The mushroom heater is made from stainless steel and comes with a waterproof cover, a hose regulator and accessories including nuts and screws! Garden: Perfect for staying cosy during chilly evenings in the garden, gatherings and barbecues! Pyramid Or Mushroom Gas Patio Heater | Living Social