
Thanks for the replies & suggestions.
The Lakeland one is the one I was going to try next so maybe I will give it a go if no one else has any suggestions.
To Jodi : The Argos one I have has no settings & within an hour the food is bubbling which my big one (Murphy Richards 3.5 litre) doesn't do at all even on high. The Wilkinson one has settings which I thought might be better but even on low the food boils & burns round the edges. Maybe I should try it in the caravan perhaps it would work better in there.
If all else fails I will just have to take my big one away with us as I know it does slow cook.