whats best for cleaning heating

[cornwallcolin]

hi ive got an old system ,the rads are semi blocked.....whats the best for cleaning them ?thanks colin

 

[gas4you]

Depends on how daring you are, or how you think your rads and pipes will stand up to cleaning.

The best solution is to use Fernox DS40, but this is VERY strong and could find weakspots and cause leaks.

The everyday good solution is Sentinel X800.

The milder option is Sentinel X400 and leave it in for about 3 weeks.

if you have a total blockage then flushing will probably not clear it.

 

[simond]

Cheapest and very effective way if you have brown carpets, is to drain system and then remove each rad, take it outside and hose it out.

Then find out how fresh water has been getting into the system, rectify it, and put all the rads back.

Getting the sludge out of the boiler is virtually impossible without a powerflush machine.

Adding things (eg: chemicals) to the water will not make any discernable improvement if the system is as bad as you intimate, to agree with Dave above.

 

[cornwallcolin]

hi thanks fot the help....... if removal of rads is done and puting a jet washer in one end and flushing through will this clean out the best ? or is chemical cleaning the best ?.
thanks colin

 

[gas4you]

I'll give my MP's answer to this

It is always best to remove as much of the crud from the system first before adding a good chemical to clean it out afterwards

 

[simond]

A normal hose is fine if you take each rad off one at a time. With a Jetwash you could end up with a lot of clearing up afterwards...