I chose this DeLonhi heater because we planned to place it in the living room where it would be visible to us and our guests. I currently have legs installed so it can stand, but plan on mounting it to the wall where it sits in my photos. The legs are plastic and sturdy, but I'm not sure of their durability when you say lean on the heater. The white case is made entirely of metal, the black mesh on the sides is also made of metal. On the sides, closer to the top of the heater, are several black plastic handles. Immediately after switching on the heating, you can feel the warmth coming from above. By switching between low/medium/high you increase the heat radiated from above. It's only when you turn on the 4th max that the fans turn on and expel air from the left and right sides. It's a gentle flow of air that I can feel with my hand about a foot away, but certainly not 2 feet away. When I put my hand over it, I feel heat radiating up to 3 feet from the top. The noise level of a heater radiating with no fans running is perfectly silent except that the heater shrinks as it heats up. When the fans are running it gets as loud as any heater that uses a fan, or about as loud as the fans on my gaming desktop in my personal experience. For some reason the heater vibrates and makes a humming noise when the heater uses the fans. Perhaps using a mat or rubber underfoot can fix this. I'm also worried that after attaching it to the wall it will also make a buzzing noise. I'll update once I've tested this. I appreciate the slim design and the fact that I can use the heater completely silently. Even in Eco mode it's great if you don't want the heater to regulate the set temperature. Overall, my first impressions are very positive. I will definitely let you know once I have tested its effectiveness in heating my living room and my experience of mounting it on the wall. I hope this answers some of your questions and concerns.
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