They are rated using British thermal units, which help in measuring the output of energy. These ratings are adjusted according to the area for which the heater is used. For a room of around a hundred square feet, it would only require ten thousand British thermal units of power, whereas, a warehouse or your garden, might require two hundred thousand British thermal units. Vents and electricity are not required for these heaters. You can light them with the help of a match, and move them conveniently all around. Some are tall and have a hooded shield that helps reflect the heat downwards; the hood is called a 'torchiere'. Some are box like, known as radiant or convection heaters, and unlike torchiere heaters, they are used to heat sheds, garages, workshops, and similar places. Since propane requires oxygen to burn, these heaters would not function in an enclosed space.
- It does not require to be mounted on a floor, wall, or ceiling, like a permanent one.
- To get a permanent heater, a building permit is required, which is obviously not required in case of a movable heater.
- Permanent heaters require electricity to power the fan, while portable ones do not.
- In case of permanent ones, vents are required on the outside, whereas, the same are not required for movable ones.
Most gas grills use propane as its fuel, usually in the form of liquid propane, or LP. It has the advantage of being readily available in a movable tank. It is kept under pressure, because propane changes to a gaseous state at -42 degrees Celsius, so it has to be compressed in order to remain liquefied. A portable grill is like any other grill, which has a cooking surface made up of parallel metal bars, or a porcelain covered metal grid, placed over a fuel source capable of producing immense heat, which might go up to temperatures of around 500 degrees Fahrenheit. A gas grill has a gas source, hoses, valve regulators, burners, starters, cooking surface, grill body, and a grill hood. The gas source is connected to the valve regulators through the main hose, and the knobs regulate the amount of gas flowing and the heat generated.
Propane is energy-efficient, and these heaters give out very less emissions. They are portable and absolutely no risk is involved. They are economical as well as environment friendly, and act as a savior when the mercury starts dropping.