I love cooking. It saves me money, and I can make whatever I want and have full control over the quality. I use a portable induction cooktop and cast iron to cook with. It works very well for me. I even make hot drinks in a stainless steel french press on the induction cooktop. Cooking makes heat and vaporizes water. Makes everything hot and moist. In the winter I don't mind so much. In the summer it makes me not want to cook inside. The 1973 camper I'm currently staying in used to have a working range hood, but there's an electrical problem now,and I haven't felt like tearing apart the ceiling to figure out why. Bummer. It's winter so I don't mind so much. Except when I burn stuff...

For my upcoming camper build, I decided I want a proper range hood. Seeing as it needs to perform many jobs, as I ask of most of the things in my life, this means it won't be like a normal hood. I'd like it to be powered by 12 volts DC directly so it can run from the battery bank. That means either buying anything RV or marine specific hood, buying standard AC hood and replacing the fans, or building custom. As I enjoy building things and being picky, I'll go with the custom option. For this I'll likely go with aluminum or copper sheet metal and rivet it together with nice copper rivets and solder the joints. For fans, I'll go with small car radiator fans for power and reliability, and run them through a motor speed controller for precise speed control. I'll mount the entire thing with noise and vibration in mind to make the whole thing less annoying. I want to use it as a general ceiling vent fan, so I will likely mount the fan/s as high up as possible and add a vent to the front face that can pull air right off the ceiling and vent it out. I do like the idea of using standard parts, so I'll try to write instructions for installing normal stuff. Should be as simple as changing some cabinet dimensions and morning points. I still need to sort out filters for grease, but I've got an idea. I can just take some steel screen door material, make a few layers with the mesh rotated, and sandwich them together in a simple frame. This should stop everything being coated in a gross layer of grease. Using copper, radiator fans, marine grade electrical connections, and waterproof electronics would actually allow me to rinse out the entire thing. Maybe I'll just spray some soapy water up in it and power wash it it? Maybe not, but building it with that in mind would leave me with something I'd never have to worry about getting water damaged. I'll tie the hood into the smart home system and allow control of fan speed, direction, and the lights. For lighting I want to go with some sort of color changing LED strip lighting. As I plan to use the entire camper as a filming studio, lighting is important to me. I'm also considering fire suppression controlled by the smart home system. I'd integrate the hood as well to turn off the fans if there is a fire. Best not to fan the flames. For the vent itself, I think I'll go with a solid copper drain pipe if I can find it, and a standard cap for something like a house roof vent or wood stove vent. Or I may make my own from copper sheet. I love copper and want to use it wherever I can. I'll make the camper shell first, then when the hood is done I'll cut the hole in the roof and install it. I'll be ok the roof fairly often as I 0lan to build a deck up there, so I don't want a bunch of ugly cheap plastic. 

That's my current plan for the range hood. Overbuilt, over powered, overly bright, smart, safe, practical. Probably going to be a massive pain to build, but I suspect I'll be able to pull it off. The single most expensive part is likely to be the solid copper if I go that route.