Do you want an easy, hassle free experience? then choose heat-plex to save more and worry less! Plumbing and heating emergencies don’t usually happen when it’s convenient for you in fact, they seem to happen at the worst times thankfully, you can always rely on. But here lies a problem the boiler has lost pressure and that means there is a problem that needs to be fixed. Brilliant news, thanks everyone! There are three main types of gas condensing boiler to choose from:.