 Since 2009 I've been developing open source low-tech infrastructure, things that people can make themselves from recycled materials. I'm from New Zealand originally, I didn't go to university, I didn't study for any of this. I have basically been reading stuff on the internet and making prototypes, it's all self-taught. We're heading to Lesbos to make sure that people can stay warm, stay sheltered, stay safe there through the winter. Oh, welcome to sunny Lesbos. Coming up on the left is our local scrap yard, good source for bits of metal, whatever you need in there. Just a long area is the big camp. Can't help people with their legal status. What I am capable of doing is pitching in, helping people build some stuff which is going to make the time that they're spending in this limbo less awful. How big is your tent? We have different sizes of tents, like four or five people living in the tent, other places like 10, 11, 12, 13, the ground is cold, the weather is cold. We know that we have been treating not like humans, you know. So everyday if we live in this kind of condition that the most stressed and crazy we become, you know. The cooking stove probably wouldn't work just because it's a little unsafe for a tent, but the larger one is the cooking stove with sand in like a half barrel. Volunteers inside who, you know, they can come here and maybe you saw us like a work force. Yeah, together and just like just crank them out, just like just make them for as many people as possible and then just keep making them until everyone has one. So we have found a scrap yard which has a lot of stuff, hopefully more of these kind of 45 gallon steel drums. It's important if you're going to make stuff accessible to people that they can make it out of what they have to hand and the only thing that we're not really past peak of is waste. We have a lot of mass produced stuff and mass production is amazing because you get quite high quality insanely cheap stuff, you go anywhere in the world and you're going to find scrap yards like this. What we're making today is a rocket mass heater which is a type of wood burning stove, a gasifying stove. It smokes like a normal fire, but after about 5-10 minutes when it gets up to temperature, all that smoke starts being burnt as well, like this very, very little smoke that comes out of it. They're a cook so you must be used to this one, huh? Uh-uh. That's why I tell him to give it to me. You guys are a good team. Thank you. This is my first time. This is going to go through there basically on a bit of an angle. That's going to sit like that. It doesn't need to be exact in the center. Also there's going to be like the chimney behind it. Everyone's like, I'm going to try and remember and like, what's that? And it's all fresh and I don't understand, and then really it's repetition. We are learning. Yeah, yeah. And I think we'll make another one tomorrow as well. We just bury this. So the stove is for space heating and also cooking. You feed wood in here once it gets up to temperature. Low smoke and it really roars. Hits this top surface, puts pots on there for like cooking. They're in containers which are freezing. They're in tents which are freezing. This will just nicely radiate heat like over several hours. The point of this project is really radical accessibility. That anyone anywhere theoretically can make these things. It's all free online. It's all open source and anyone in the world can access it. Good evening, Daniel. It's a freezing night and inside is very warm.