No one likes to be in a situation where the central heating doesn't work and you're out in the cold. You certainly shouldn't think about the shower only giving cold water. Yet it happens more often than you think. Installer F.P. de Boer knows the situation all too well. We often do not realize it, but we trust that our boiler always works. We want to prevent malfunctions and unnecessary repairs. Everyone also understands that a central heating boiler, just like a car, is a mechanical device that must be properly maintained.