I recently received the below letter from one of my customers:
I know you get a lot of questions, so I hope you won't mind one from me...
My mother had her 50-year-old boiler replaced recently with a new Peerless WBV-03-W (runs on oil). It's really noisy when it runs. Her heating guy tells her it's because of the higher efficiency, but it worries her. She's an elderly lady who lives alone, so it's the kind of worry that just gnaws at her.