water heater for caravan (lpg) , got to price a job to install a new water heater in a static caravan to replace the old burst sanvier duval one, anybody got any recommendations on one that can fit ?? the cupboard that locates the old one is only 10 1/2" deep , 15 1/2" wide and 26 1/2" high. they also want a new gas fire fitted , if I can ill post pics of the old one I capped off!! thanks