We are very impressed with the proformance of the heater, and find that upon entering our cold lounge when the evening comes, as soon as we switch the heater on, we have instantaneous heat throughout the room. Installation was very simple and all in all, we have found that everything that was explained to us at the time of the purchase has proven to be 100% accurate, and we would totally recommend this product to everybody who has suffered lengthy time to heat up a cold room, and having high power bills to do so.