1st and best option is to get your existing boiler repaired, a good heating engineer will be able to source spares. If you still want to replace a 12kw regular (condencing) best replacement. If heating engineer wants to fit a combi say bye bye to him at once, as it'll be for his benifit not yours. Combis only ok for one person dwellings.
If heating engineer wants to fit a combi say bye bye to him at once, as it'll be for his benifit not yours.
Rubbish every house/case is different. I have a combi and it's ideal for what we want/use.
30+ year old boiler - parts are probably obsolete, if not they'll be expensive as they will be trying to overprice the parts of these boilers to get rid of them, so you go for a newer, more efficient boiler.
The majority of people want combi's now, they're ideal for most situations unless you have more than one bathroom that will be used at the same time.
Everyone is entitled to their opinion - and in my opinion what mykylyn is saying is total garbage.
You can use Fernox, but you might need a complete new system if it is 30+ yrs old, there will be a lot of gunge built up. Your installer should be able to advise, get a few round for a chat, they all say something different. Worcester is good brand, I did a load of research and ended up with the 30Si for a 2 bedroom big flat, I should've maybe got the 30CDi, which is a bit better. Check your council/energy provider for grants too.
i had a look in screwfix and there seems to be 2 sentinel products that i could use to clean it out but not sure which one to get.
There is a x400 sludge remover for £13.20 and a x800 jetflo sludge remover for £21.52.
The x800 says its powerful stuff, which i think i will need consider the system is over 20 years old but it says it is ment to be used with a power flushing system which i nor the plumber have. Will it be ok if i put it in and run the pump for a few days and then drain the system??
how long should i leace it in there for for best results?? im just trying to save myself some money.
Sorry for the delay in replying, I would use the X400, the X800 is designed for use with a flushing machine.
You can leave the X400 in the system but I wouldn't leave the X800 in as it is meant for flushing prolonged use may damage the system more than it'll help. You can leave the X400 in for up to 4 weeks, a few hot and cold flushes and you will be ready for the new boiler.
Also worth considering using X300 after the installation to remove the copper filings and flux from the newly soldered joints.
Then add X100 to pro-long the life of the system and re-plenish every you drain the system.
Also have a look at Magnaclean, it's basically a filter that you empty to remove deposits from the system, it also incorporates a one-way valve for dosing of the system.
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by beesley121 » Wed Mar 25, 2009 11:18 am 
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