Winter covers for refrigerator vents?

[Yellowreef]

Was reading the manual for my Dometic refrigerator and it suggests putting the winter covers on the vents whenever below 42 farenheit. It says the colder air will affect performance. I have never done winter camping but Im going to next month, probably in the teens at night and 30s during the day. My rig didnt come with winter covers for the vents (although they are pictured in the manual), and having no experience I dont even know if this is necessary. I've been told by someone that it is not. What say you?

[Yellowreef]

Anyone?

[Midniteoyl]

Someone will be along.. But till then, I found this: Motorhome Facts :: View topic - Winter vent covers

And:

Quote:

Over-cooling in cold weather All models can suffer from this but those that are particularly prone to it include RM212, 4206, 4230 and 4200. The answer is to fit winter covers to the vents whenever the outside temperature is below 10ºC (50ºF). If you cannot find any to suit your vents then try using kitchen foil to cover part of the top vent. Don't cover the lower vent as in some models it acts as an escape point in the event of a gas leak.

http://www.a-tconsulting.co.uk/carav...h/fridges.html

[Rvpapa]

I have the older style lower cover (metal with many louvers). Also have a second one with all but the very bottom louvers closed off. The modified one gets put on when temps are going at freezing in the daytime. Done this for the past seven years and it helps a lot.
Art.