Iv,e bought 2 x 3kw plinth heaters for the kitchen, initially I was going to feed these by way of plugging them into socket outlets which allready exist just in the right places behind the kitchen units, (both sockets are on the same ring), However considering the potential draw if both were on together at max setting, would i be better off feeding these on a dedicated circuit, or am I being over cautious, the existing ring, feeds all the usual kitchen appliances.