Boiler internal leak sealant 5 days to set? Help needed!

[Joshnathan]

We have a boiler loosing pressure and British gas came to look at it. They put some kind of sealant in and said we had to have the heating on full wack for 5 days. This seems a bit ridiculous, expensive and very hot. Is this really necessary? Would 12 hours or a day do?

Thanks
Joshua
Currently dying of heat exhaustion in my flat.

 

[lucas121]

It's a bodge repair that probably won't work anyway.

 

[townfanjon]

TBH , i haven't and dont think I ever will use that stuff. But that doesnt sound right to me. Somebody maybe along to help shortly

 

[Alpha man]

What boiler and system do you have?

 

[lame plumber]

sealant works due to a reaction with air at the leak, u only need to circulate it for a few hours to get it round the system and find the leak. If it doesnt cure it in that time, it never will. I normally get a 50% cure rate when trying it out as a last resort, if it dont work some serious action is needed to find and repair the leak, no matter how hard it is to get to.

 

[Chalked]

Direct from fernox web site. Says 2-24 hours. I think the engineer is just making sure.
Tbh, it's a last resort. But sometimes worthy. Try.

 

[Joshnathan]

Thanks for the info chalked and lame plumber. They did it yesterday at 2pm and i seem to be holding pressure at the moment but i guess i wont probably know until i turn the heating off and see if it holds pressure after that.

Alpha Man i have a Remeha Avant Plus boiler and 3 large radiators, 1 small and a towel rack.

I only moved into this flat on Saturday so this is all a bit of a bummer.

It seems like everyone is saying the engineer is going to be back for a much bigger job.

Regards,
Josh

 

[Chalked]

It will probably last a couple of years. Most likely place for the leak is your boiler on a small system like yours.
It's not the best boiler out there tbh. So start saving for a new one.

 

[Joshnathan]

It will probably last a couple of years. Most likely place for the leak is your boiler on a small system like yours.
It's not the best boiler out there tbh. So start saving for a new one.

Hi,

Its a rental for the next year whilst we look to buy in the area (sort of testing the area). Thanks for the info though. He is insured as a landlord and has a british gas insurance scheme as well so hopefully a new boiler wont be the end of the world.

As long as it lasts the next year id be happy tbh.