There are many factors such as size and insulation to consider when deciding how many watts you need or even how many Infrared Panels you need. For any larger rooms we recommend more than one Panel so it can distribute heat evenly and quicker. Smaller rooms, depending on the size, one should be sufficient enough. Infrared Heating works by heating up the thermal mass of the interior, so after starting it initially; it can take anything from a couple of hours to a few days to feel its full effect so, if it’s a room that’s damp, it will take longer. However, if you are unsure of what you need you can always get in touch with us via chat on or website or even call us directly for free advice on 0116 488 5150.