Also known as conventional or regular boilers, heat only boilers need a feed and expansion tank in the loft to store cold water they also need a hot water storage cylinder and a pump to push hot water around the system. Still have a question? ask your own! We also display a wide selection of wood mantles with marble back panel & hearths, plus all marble fireplaces, controls, and showers. Don’t let your garbage disposal fall into disrepair schedule competent service and keep a clean kitchen.