Popular Questions
- I have a boiler central heating system in which the central heating and hot water feed off one tank in the roof . I have been advised by a plumber that I need to replace the boiler for a combi system, as the system I have is illegal. Can you confirm and a
- I have a modern high efficiency condensing boiler which developed a fault during the recent very cold weather caused by the condensate drain freezing. Is there anything that can be done to prevent this happening again?
- I am looking for a boiler manual, where can I find a copy?
- What is the Renewable Heat Premium Payment (RHPP) and how do I claim it?
Heating Advice
Following a repair to our condensing combi boiler the engineer recommended a powerflush and a magna-clean to deal with signs of corrosion. Another engineer recommended that a better solution was to replace the 5mm pipework with 15mm.
Provided that the existing "small bore" pipework is giving satisfactory service (all radiators are heating up equally etc) then it should not be necessary to take the somewhat drastic (and expensive) step of replacing with 15mm pipe.
Correct use of inhibitors (as recommended by the boiler manufacturer), regular boiler and system maintenance and, possibly, the use of a "Magnaclean" unit should be adequate. Powerflushing may be helpful as a "one off" in getting rid of accumulated corrosion products - with the appropriate use of chemical inhibitors on annual service thereafter
If a powerflush is used then it may be useful to consult the boiler manufacturer (there should be a technical enquiry number in the manual) to see whether they advise doing this with the boiler bypassed if possible (to avoid flushing material into the boiler).