Freezing weather Symbol 2014

We will be using the van next week for 3 nights and it's anticipated that we'll have some frost. Is there any advice that you can give us to stop things freezing up, and to stop the Frost protecting drain from kicking in. Thank you

If you are using the van the frost dump valve won't be an issue as it is designed to open when temperature inside the van is less than 3c. Other than using heating,  closing blinds etc no special precautions needed with usual uk winter temperatures

We were away for a few nights last year in snow and sub-zero temperatures. The van kept nice and toasty and we had no problems with onboard water at all. Enjoy your trip:-)