If you're interested in real technical nitty gritty, why not take a look at a few of the many patents covering how kettle-like appliances work? here are four i've picked out, but you'll find lots more in the records. We offer 24 hour appointment windows. Put simply it all depends on the size and scale of the project on the majority of occasions we can have your boiler installed between 1 – 3 days. Plumbers install fixtures in new buildings or repair.