No insulation between top and bottom ovens.
3/5
Simplistic, but very functional double oven. Heats up very quickly, but there is a lot of bleed from the top oven to bottom oven and visa versa. The heat loss from the top oven meant it could not reach the top temperature until the bottom oven got quite hot. There is clearly no insulation between top and bottom oven. One benefit from this is that dishes and plates can be warmed easily, but the heat bleed is worrying.