I read the other post regarding the use of these covers following a very chilly weekend in Grantown on Spey when I wasn't using them and the fridge did tend to freeze things it wasn't meant to. Following weekend, and armed with the advise of when to use them, I fitted them during a mild but extremely windy weekend in Alford (Aberdeenshire) and noted the fridge did not work as efficiently as usual! It appears to me that you have to use depending on the prevailing conditions and be aware of the need to check the efficiency of the cooling of the fridge. The van was warmer with the covers fitted due to the decrease in draughts.Hi,
Winter covers can certainly be used as Alex suggests to keep the bugs and rain out, but their primary use is when the temperature drops below 5C.
Below 5C (or thereabouts) the fridge tends to over-cool, and the winter covers restrict the airflow and reduce the amount of cooling. So with the winter covers fitted there should be some airflow, but nothing like as much as normal. Stops the fridge turning milk into a ice-lolly...
Robert