Heating and hot water broke last night on the coldest night of the year the emergency line was very helpful and they directed us what to do to get it working again as it was a simple to fix problem thank you so much! It is yeah this is something, drain cleaner . Need a drain unblocked, or have a problem with your drain? Mr philip danaher, franchise owner, mcdonalds limerick. Q why do i need a replacement boiler?.