Does everybody have a room in their house they just can’t adequately heat with normal HVAC settings? Mine is a guest room in the back corner of my house. It has served as a sort of junk room for the past many years. However, now we are bringing in a foster child and I need that room to be liveable. I raised my kids. They turned out to be good humans and I’m very pleased by that. My wife and I decided to provide some love to a kid that could seriously use it. I’m a tad freaked out because this girl has been through a bunch of crap in her short life. Not sure I’ll be able to relate to her, but I know I can love her. So, she’s moving in next week and I gotta get this room warmed up. First, I went in and sealed around the window to be sure to close any gaps. I went outside to then pump in some foam insulation around the window frame. I think there was a draft that was allowing a good bit of the HVAC treated air to simply escape. However, I also found these room to room ventilators online. They seemed worth a try and were less than a hundred bucks. So, ordered them and am I ever glad that I did. These little fans fit inside small holes cut in the top of the adjoining rooms shared wall. It didn’t take me all that long to get them put in correctly. But, the difference they make is astonishing. Once they were installed, they automatically flipped on. I left the room for just over 30 minutes. When I entered the room, it was as warm as the rest of the house. So, this young lady will definitely be warm and loved. That’s something.