As promised, the gas man came. Surprise, surprise, its never as easy in practise as it looks on paper. We’d been verbally assured that no site inspection would be required and no extra costs would be incurred, there was no conceivable reason why the job wouldn’t cost what we’d been quoted…. Oh look, the standard installation includes 6m of gas pipe, we need an extra metre or so. The standard installation includes a flue that’ll reach from the heater into a 9' ceiling and we’ve got a 12' ceiling so we need an extra flue piece.