Electrolux Vents - more on another Camper

Well I forgot to mention in yesterday's e-mail, that in the Chalets I had a look at yesterday, on the bench between the 2 burner stove and the sidewall of the van, there are 2 chromed vents, I would suggest put there to assist the venting of heat from the top of the fridge, as the outside top vent, like the A'van is not quite high enough, and a 'box' should have been built at the back of the bench [see Electrolux installation pamphlet] on installation but probably the two vents are a good substitute to assist in cooling the fridge?