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CORGI - 58% of Consumers Still See It As An Essential Factor When Choosing Their Gas Engineer When you are replacing or repairing your gas boiler, you'll want to ensure that the engineer you hire is qualified. A recent poll conducted in advance of Gas Safety Week revealed that despite CORGI not being the official register for gas engineers, 58% of consumers remain convinced that it is an important factor when selecting their engineer. Qualifications Being a gas engine