Infrared heaters can heat a whole house. These modern electric heating solutions offer a deep level of warmth for your living room, bathroom, bedroom, etc.
An infrared heater or heat lamp is a body with a higher temperature which transfers energy to a body with a lower temperature through electromagnetic radiation.[1]https://en.wikipedia.org/wiki/Infrared_heater. This is infrared radiation, also known as infrared light, which heats people and objects directly rather than heating the air around them like other types of heaters do. (Infrared radiation is also part of natural sunlight and, therefore, very agreeable to us.)
So how long does it take for an infrared heater to heat a room?
The effect of infrared heating can be felt almost immediately after switching on. It is therefore not necessary to turn on the panels one hour in advance to ensure a warm room.[2]https://calcpark.com/infrared-heater-calculator/
That is why it only takes about 30 seconds for the objects in the room to reach the optimal heating temperature, thanks to the fact that they are heat directly in the room.[3] https://homex.com/ask/how-long-does-it-take-for-an-infrared-heater-to-heat-a-room