I have been told that it is possible and even advisable to overwinter chilli plants as the second and third year crops are significantly larger than the first year.
I got my various plants established very early in the year this year but they have really only started to flower and set fruit in earnest since mid-September so I brought them indoors earlier this week when the temperature dropped. I now have 9 plants in the kitchen and 9 in the conservatory (and another 4 aubergines that may need to come indoors too to finish cropping).
My question is - will they overwinter okay at normal room temperature and lighting levels (both locations get extended morning sun) or do they require some additional special treatment?
I placed them on trays and keep the local area quite humid. That can be maintained through the winter if needed. I also have a small heatpad that we used on a houseplant in our previous home (which never got much warmer than around 15C) which can be brought into use if required.