The house we recently bought has a Tecnik electric double oven. The smaller top part is a conventional oven and grill. The larger lower section is a hot air oven..... initially I thought this meant a fan oven, but the maximum temp it goes up to is 190C, the manual says that being hot air, you don't need such high cooking temps. Which is fine, but it doesn't tell me how to adjust recipes when cooking in it! 
Does anyone have one? How much do I drop the temperature when baking?
Thanks :)