Screwing into the cyclinder

[Mr Blobby]

I was surprised, and rather disappointed to find our plumber had screwed into my lovely Panasonic cylinder to fix pipes.  

 

Googling around it seems this is common practice to fix into the cylinder so I'm much calmer now.  However, the clips are all loose, suggesting the screws have not threaded onto the external skin of the tank.  I have a box or short wide self tappers on site that would probably have been far more effective but its too late now.

 

Any thoughts on this?

 

[LaChab]

I had an idea that Panasonic used Oso cylinders, in which case it's possibly not a good idea to use any screws as Oso use vacuum insulation, and state "no penetrations".

 

[JohnMo]

If its foam insulation no issues, if as said a vacuum insulated one, bang goes the insulation

[SteamyTea]

Easy fix, 25 quid.

 

 

[Nickfromwales]

9 hours ago, Mr Blobby said:

Any thoughts on this?

Post the manufacturers sectional detail, please, before we comment further.

 

I fix into cylinders like this routinely.

[MikeSharp01]

6 hours ago, Nickfromwales said:

 

I fix into cylinders like this routinely.

Seems rather crude just to screw into a casing, might be more robustly done with rivnuts or some such. 

[JohnMo]

34 minutes ago, MikeSharp01 said:

rivnuts

We are talking plumbers - most don't understand priority domestic hot water - rivnut no chance.

[Nickfromwales]

1 hour ago, MikeSharp01 said:

Seems rather crude just to screw into a casing, might be more robustly done with rivnuts or some such. 

There’s nothing wrong with doing so, just the difference being some use a screwdriver to put a self tapping screw in, and others use a hammer.

 

Rivnuts would require machine thread screws vs ‘what’s going to be in the van’, so that’s not likely to happen.