Product review (4 stars): It works
My laundry room gets cold, it literally has no insulation. We even had frost on the linoleum a couple times. It draws a lot of hot air into it from the rest of the house so I've taken to putting a towel under the door to stop the cold air blasting through. Also, the air is very dry as is normal in winter.

This dryer heat diverter made a huge difference almost immediately. I say "almost" because i installed it backwords first (lol). The first load I tried to dry with it took 2 and 1/2 cycles to dry before i figured it out. It heated up the room incredibly fast once I reinstalled it correctly. I am able to keep the door open and have all that heat and humidity roll in through the kitchen and living room. It's great!!!

It's not without its flaws, though.

1. It feels pretty flimsy. I think they could have molded this thing into one solid piece. The 2 zip ties that it comes with WILL hold it together well if you can get them tight enough. Also, the zip-ties have little release tabs so you can reuse them if you need to take the thing apart for anything. You could also just get some 4" hose clamps if you wanted to spend the extra cash.

2. The screen that comes on the little round part is a little too wide and some dust does blow out. THIS IS YOUR CHANCE TO BE CREATIVE! I took a used dryer sheet, popped off the screen cap, placed the used dryer sheet behind it, and put the screen cap back on the diverter. It fits a little more tight this way, too. I see in other reviews the some people used pantyhose, but the dryer sheet gives off a nice smell so I went with that.

3. There is no mount to hang this thing or attach it to the wall behind the dryer. I ended up just setting it on top of the control panel for my dryer and against the wall. The diverter kind of aims up over my head if I were standing in front of the dryer.

For those 3 reasons, I can only give this 4 stars and that ONLY because it would be made better. The idea is great, execution... Could be improved.

In conclusion, If you are looking to potentially save some money, why not get one of these things? I had enough stuff in my cart for free shipping so for around $6, it seemed like an idea I couldn't pass on. I'm glad i didn't!