BBCNEWS BBC News June 4, 2024 13:41:00
To play with in the room. the second is infrared, so really a little bit like the sun. so if you feel along here. ooh. oh, that's nice. so we've got two systems here because it heats you. we've got one here on the wall and then we've got one up here on the ceiling. oh, that's a heating system as well? yeah, it sort of pushes it through and really comes through into the room. and you're testing them against each other to see which is the most efficient. of course, you can change the weather so you can very accurately work out how they work. exactly that. so we can get the weather really cold ou...