Probably  a stupid question.

But should I lag the hot pipes?. No pipes in the entire build go through a cold space i.e. they are all within the insulated build.

The hot pipes (due to so many of them) do cross over cold pipes - so not sure if that's an issue.

 

Thanks in advance as usual!

Edited November 5, 20196 yr by pocster

Yes.

8 minutes ago, Mr Punter said:

Yes.

Really ? Even though the hot pipes enter no cold space ( loft etc ) ???? 

It will not make a huge difference but the hot water will take a bit longer to reach the tap, the house will be a bit hotter inside in the summer.

At least make sure you insulate the pipework between the boiler and cylinder.

 

Quite annoying in the summer having a room heat up because the plumber was too lazy to do this.

4 minutes ago, Mr Punter said:

At least make sure you insulate the pipework between the boiler and cylinder.

 

Quite annoying in the summer having a room heat up because the plumber was too lazy to do this.

The hot water comes from a uvc . 

45 minutes ago, pocster said:

Probably  a stupid question.   But should I lag the hot pipes?. [...]

 

Stoopid? No, it was me that is (well, used to be) . I assumed there was no need . Who's the eejit now then, eh?

You will need as a minimum all the primary pipe work within the vicinity of the UVC lagging, it’s a BRegs/Part G requirement. 
 

Not difficult to do tbh and shouldn’t take long. 
 

Use Climaflex from Screwfix, and tape all the joints with 3M Electrical tape. 
 

6 minutes ago, PeterW said:

You will need as a minimum all the primary pipe work within the vicinity of the UVC lagging, it’s a BRegs/Part G requirement. 
 

Not difficult to do tbh and shouldn’t take long. 
 

Use Climaflex from Screwfix, and tape all the joints with 3M Electrical tape. 
 

Transmission received and understood!

It can also help reduce/remove heat transfer from hot to cold if they are running close together. 

Ok . Individual hot pipes not an issue .

But where they all cross is going to be a pain - photo 2

Rather than try and do each hot individually can I cheat a bit here and wrap the whole lot ( hot and cold ) in some foil backed insulation I have lying around - photo 1

I wouldn't wrap the hot with the cold; there's nothing worse (for me at least!) as getting like warm water out of a 'cold' tap! (Admittedly that's a First World problem if ever I've heard one...) 

4 minutes ago, MJNewton said:

I wouldn't wrap the hot with the cold; there's nothing worse (for me at least!) as getting like warm water out of a 'cold' tap! (Admittedly that's a First World problem if ever I've heard one...) 

Fair point . I’ll semi cheat and wrap all the hots together !! 

Weaving sheet insulation in like that may well work perfectly - insulating both hot and cold at the same time but on different sides! 

Note to self .

lag pipes as you go not after they have all been installed .

3 hours ago, pocster said:

Note to self .

lag pipes as you go not after they have all been installed .

 

Not quite the look that @PeterW goes for...

1 minute ago, Mr Punter said:

 

Not quite the look that @PeterW goes for...

? It was a bit of a mare to get 19 pipes to all play nicely . Functionality over form . 

Coincidentally @PeterW just messaged me privately and said it looked beautiful ??

1 hour ago, pocster said:

Coincidentally @PeterW just messaged me privately and said it looked beautiful ??

It would be a b-word... but not that one ... ?

2 hours ago, PeterW said:

It would be a b-word... but not that one ... ?

Oh what ‘b’ word ? ?

At the end of the day it’s not detrimental to performance etc. - so neat or not achieves  the same job . 

1 hour ago, pocster said:

Oh what ‘b’ word ?

 

"begging" to be covered by a suspended ceiling? ?

Actually that's got to be a "bitch" doing it on your own?

@Onoff both of those !

Not a criticism but I'm guessing you didn't use a decoiler? Pipe having it's own natural lay etc (like cable).

31 minutes ago, Onoff said:

Not a criticism but I'm guessing you didn't use a decoiler? Pipe having it's own natural lay etc (like cable).

Nope - didn’t even know there was such a thing . So 100m of pipe when unrolled wants to roll back up . Was a dog to ‘fight’ against . But as I said apart from looking pretty ( and you won’t see it once the false ceiling is in ) I didn’t see any point in making it look nice .