You would have thought that BIGGER is always better. This is true in a lot of life’s situations, like ordering a bigger steak, buying a bigger house, watching a bigger TV and wining big money. But this can’t be said for your boiler.
"May I thank you and your engineer who attended my home this week.
The engineer was so polite, helpful and good at his work, I worked in the gas industry (British Gas / Transco) for 30 years and understand what the service involves and the service required, and your service is excellent! Please pass my thanks on to the engineer involved."