Mike and i are still in love with our bathrooms — and would recommend avon plumbing without hesitation! We provide detailed reports and give you the best advice on any repairs that might be required. Do you need -hour cover in case of emergencies? A system boiler heats your central heating system directly and produces hot water for your cylinder. The coke/pepsi idea is fantastic! i don't like either anyway, and it makes a lot of sense to use great hub and very useful as many have this problem.