A radiant heater is a type of space heater that is capable of reaching high temperatures.
This type of heating system uses a furnace or heat pump to warm the air and releases it through ductwork and vents. Cold air is pulled into the system where it is filtered and heated. The filter gets rid of any allergens and dust that could be brought in with the air. It is the only energy efficient heating system that is able to combine heating and cooling.
BTU stands for British thermal unit which is a measurement of how much heat energy is used to raise the temperature of one pound of water. The ‘H’ refers to how many BTUs are used in an hour.