Exactly what I was looking for
Your review: I spent thousands of dollars on zoning and wish I had purchased this in the first place. It is quiet and powerful enough to heat the room even on the coldest of nights without the central heat on at all, although I primarily use it to supplement the central heat in my coldest north bedroom. I installed a thermostat at the other end of the room and it has solved my problem of inconsistent temperature between rooms. Because it is in the wall, it does not take up floor space or have the safety issues that a portable space heater has. As it is pictured, it looks like an extra large central air duct and not much noisier. I plan to purchase more in the future for other rooms. You need to have some knowledge about cutting into your walls and electrical wiring or have a qualified electrician install this.