Bests & Worsts Reviews from Amazon

a review for people who've read through comments about these melting. for the tl;dr crowd: yes it works. It redirects air. And the magnets are strong enough to hold onto a wall register. But here's the deal... not everyone's heaters are the same. I live in an apartment where I have one register in the living room and one in the bedroom. So unlike "central heating", all my air comes from this one register. This makes a MAJOR difference, because the temperature of said air must be drastically hotter than air spreading through several registers all over the house. [I *need* to address the idiotic comment regarding "this melted and my heater is only set to 65 degrees". No. The heat coming out of your register is not the same temp as what the thermostat clicks on at. Your body runs at roughly 98.6 degrees. This air would feel cold on your skin if that were true. Stupid comment.] ANYWAY, so, I temped the air coming from my register and it is a staggering 280 degrees. If this is made out of polycarbonate plastic, then that begins to melt at about 297 degrees, so I can see why this might happen for some folks. And as I watched, I did notice some slight warping, so I decided to buy some heat reflecting spray paint. I'm not sure if this will help in the long run, but it's worth a shot, and it actually looks quite nice up against my register. So, I'm not going to knock off any stars for the seller because if your heater gets up to 290+ degrees then just about anything will probably melt. However, it would be prudent for them to add the temperature information to the listing. Although, to be fair, the listing does specify for *central* forced air heating/cooling only.