Lagging Hep2o

[Pocster]

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, 2019 by pocster

[Mr Punter]

Yes.

[Pocster]

8 minutes ago, Mr Punter said:

Yes.

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

[Gone West]

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.

[Mr Punter]

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.

[Pocster]

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 . 

[ToughButterCup]

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?

[PeterW]

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. 
 

[Pocster]

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!

[MJNewton]

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

[Pocster]

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

[MJNewton]

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...) 

[Pocster]

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 !! 

[MJNewton]

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

[Pocster]

Note to self .

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

[Mr Punter]

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...

[Pocster]

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 . 

[Pocster]

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

[PeterW]

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 ... ?

[Pocster]

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 . 

[Onoff]

1 hour ago, pocster said:

Oh what ‘b’ word ?

 

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

[Onoff]

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

[Pocster]

@Onoff both of those !

[Onoff]

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

[Pocster]

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 .