There are various types of garden patio heaters which can be fuelled by gas. These can range from free standing, fixed/plumbed into the ground, table models, wall units, and pit/basket types. Due to the ease of use and versatility, one of the most popular types is the free standing gas heater; of course there are many varieties of gas heaters on the market but when choosing your heater it is important to consider the following points: Power output; Safety; Heat Control. For more information see below:
This can be described in KW or BTU/h's (British Thermal Unit). It is worth checking the BTU's, this is the engine size and a more accurate way of understanding how much heat will be generated. Table models often have low output; standing models should have a min 35,000 BTU up to 45,000BTU. Anything higher will only marginally increase the available heat but will cost more to run!
Some garden patio heaters only offer a high and low heat setting. Always look for variable heat control.
Garden patio heaters fitted with a flame failure device are common now. Not all models though are fitted with a tilt safety shut-off. This device will cut the supply of gas should the heater lean/tip over. It is unadvisable to situate garden patio heaters on a slope, they should be placed on firm, level ground. But should someone try to move the heater when it's lit then the tilt switch will cut the gas supply.