The gas engineers I know are not poor e.g. one is (sole) owner of a light aircraft & he can afford the fuel to fly it regularly.
Work to learn the skills initially (& then a smaller bit of ongoing effort keep up with changing tech & regs) but a nice earner once you have your certification.
Cold snap emergency callout time of year can often lead to eye watering quotes for a visit as demand is really high as cold snaps are when heating issues often become apparent.
Biting the hand that feeds IT
