Powerflush in morning, will he want heating on or off?

[britishboy7]

Bit random I know, have my powerflush booked in for the morning and read on a website that they should measure the temperature of every radiator before commencing, to compare the improvement to the system once they've finished. I was planning on turning the heating off tonight so its cold for him to work on...

Whats the norm, heating on or off for when they arrive?

 

[Storms]

Bit random I know, have my powerflush booked in for the morning and read on a website that they should measure the temperature of every radiator before commencing, to compare the improvement to the system once they've finished. I was planning on turning the heating off tonight so its cold for him to work on...

Whats the norm, heating on or off for when they arrive?

It depends on what power flushing equipment he's using. Some machines require the system to be drained some do not.

 

[britishboy7]

Thanks Storms, ah i didnt know that. If hes tapping into the system at the central heating pump i wasnt sure if he'd need the water to be cool to do so

 

[Madrab]

Bit late now, phone him before he arrive as to what he would prefer. He may want the system warmed.

Have a quick squizz at this, specific to Fernox, but will give you an idea of what to expect -

Can't say I've ever seen any PF machine requiring a dry system to start off.

 

[britishboy7]

Thanks Madrab, theyve arrived and draining the system now. Was expecting them to measure the temp of the radiators with a thermal camera but they haven't in every room, is that normal?

 

[Dean744PiN5]

Thermal cameras are not a compulsory items by any means. But testing the Rad's before ha d with some type of thermometer is a must to compare before and after performance.

Having said that if you've paid under £300 (have no idea how much you was qouted btw) for a flush then I doubt it would be that involved.

 

[britishboy7]

Thanks dean, I'm paying £600 all in for 11 rads and fitting a magnaclean filter in the airing cupboard about the CH pump as there's no room on the return to the boiler?

 

[Storms]

At that price they should really be checking every rad. Also make sure they isolate individual radiators and power flush one at a time (as well as the whole system). Ideally they should also be adding some chemicals in with the power flush. What machine are they using?

 

[britishboy7]

At that price they should really be checking every rad. Also make sure they isolate individual radiators and power flush one at a time (as well as the whole system). Ideally they should also be adding some chemicals in with the power flush. What machine are they using?

Hi Storms
Not sure what machine I'll try and get a look. He has done the radiators individually, hes just done the downstairs ones and showed me the magnet from his pump/filter, showed me before and after. Said it was worst he ever seen, was jet black and shaped like, er, hard to describe it really, ridged like some kind of weird sex toy (from what you see online - dug myself a hole there didn't I?) Anyway, it was twice the size before he cleaned it off. He looked genuinely shocked

 

[Agile]

At that price they should really be checking every rad. Also make sure they isolate individual radiators and power flush one at a time (as well as the whole system). Ideally they should also be adding some chemicals in with the power flush. What machine are they using?

Any professional, power flushing without chemicals, is a cowboy and not a professional.

Tony

 

[Storms]

Any professional, power flushing without chemicals, is a cowboy and not a professional.

Tony

What chemicals would you use Tony?, say for a routine flush on a 7 to 10 radiator system.

 

[Agile]

That would depend on the type of dirt to be removed!

Tony

 

[Storms]

That would depend on the type of dirt to be removed!

Tony

just some magnetite in the pipes... nothing major and no blockages

 

[Madrab]

As dean mentions, the tools used aren't specific but best practice suggest they should be testing each rad to see how bad the condition may be and taking typical temps to compare once flush is completed. Also give an indication how bad it is and what level of chemical strengths to use.

What was the reason to embark on a powerflush in the first place?

Sounds like it was pretty sludged up but I'm sure he's seen ones just as bad, don't let him kid you, seen a fair few that are seriously sludged up. What levels and type of inhibitor did he add? Should be a sticker placed on your boiler. How long was he there?

 

[dilalio]

Also might need to vibrate individual rads (mainly on drops) if system was that sludged up.