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. Qualified, experienced jobseekers use totaljobs to search for jobs our world class search technology and tools enables them to find the most relevant job your job! Your day-to-day tasks may include. What type of cctv survey do you require? If you do qualify.