How soon do you require a service? Rheem is also increasing the cylinder warranty on. Before you rush out to buy a new boiler there are plenty of other steps you can take to cut your heating cost without splashing out. How do i use drain out bathroom on an extra tough clog or floor drain? Hours: :-close / monday-saturday. Great customer service! very trustworthy people!! You won't be able to claim for the first to days. I was skeptical about.