What type of cctv survey do you require? Make sure your boiler is fully serviced and covered by our guarantee by picking from the following options. Learn a new word every day delivered to your inbox! Does your boiler have a plug? if so, there’s no problem you probably have a two-phase boiler it is very easy to connect a timer to this type of boiler. But the sales-like nature of this visit put me off could i save more elsewhere? Our expert staff will gladly assist.