Best way to label pipes

[TonyBronx]

Hi All,
I hope you are well.
I am slowly preparing for installation of the combi boiler (I reckon in 2026).
I have an old Baxi Solo 15HE, it works just fine but apparently combi is going to be more efficient.

I have the floor exposed, just need to lift some floorboard here and there to identify which pipes are which.
I would prefer to label them so we know exactly which is which and there is no guesswork down the line.
What do you use to label the pipes?
Thank you

 

[ShaunCorbs]

Would leave it to the pros as depending on
Boiler locating might not need to be in that position

 

[TonyBronx]

Would leave it to the pros as depending on
Boiler locating might not need to be in that position

I spoken to a gas engineer/plumber who is going to replace the boiler. The boiler will be in the same location (kitchen). We discussed any other location but at this property it does not look like there is going to be any benefit.

The idea is to label the pipes (I got myself into a side quest), then for the plumber to come in and to confirm if correct. He could do it himself but considering his busy schedule it will take longer so I can help investigate, I have to lift the floorboards myself anyway.
Next stage is to get the new pipes lied down in advance because the new floor is going to be installed sooner than the boiler.

It may sound unreasonable, ridiculous but I think it's doable. Rather than a one stage process I consider 2 stage process otherwise I have to postpone the work indefinitely because I cannot leave the floor like that.

I am open to critique of my unconventional ways of completing things.

 

[ShaunCorbs]

That’s the thing though

Heating pipes are at the location so no need to alter / add these

Hot and cold just need to be run to the airing cupboard/ cylinder location in 15mm

Gas need to be there but you can’t install that

 

[Last Plumber]

SEDBUK wise, it's similar. Maybe you'll save on hot water production but that depends on how it is used and by how many people.
I would leave the pipe marking to the installer. If there's a mistake made, it won't be yours and they should know by looking at things which pipe is which quite easily.

 

[TonyBronx]

SEDBUK wise, it's similar. Maybe you'll save on hot water production but that depends on how it is used and by how many people.
I would leave the pipe marking to the installer. If there's a mistake made, it won't be yours and they should know by looking at things which pipe is which quite easily.

Are you're saying replacing Baxi heat only for a combi boiler makes sense if there is many people in the house taking baths/showers?
I live by myself, this could change of course but I don't expect more than 2 people.

 

[ShaunCorbs]

On average feedback is around 1/6 saving going from heat only to combi / on demand

 

[TonyBronx]

On average feedback is around 1/6 saving going from heat only to combi / on demand

from my calculations it would take almost 21 years to pay itself, 1/6 = 17% = £85 of saving per annum

Thank you

 

[ShaunCorbs]

from my calculations it would take almost 21 years to pay itself, 1/6 = 17% = £85 of saving per annum

Thank you

But if your changing boilers heat onlys are more expensive than combis to buy

 

[Last Plumber]

Are you're saying replacing Baxi heat only for a combi boiler makes sense if there is many people in the house taking baths/showers?
I live by myself, this could change of course but I don't expect more than 2 people.

I meant the opposite really. If there is only you, I think you would probably be better off with a combi, especially if you mainly use a shower.
You only heat the water you need and no-one else will be running taps whilst your in it. It will be fine for baths too if you get one with a decent flow rate but my advise is to avoid being ridiculous and buying the 'biggest'. You can only get out what you put in so if for example you only have 12 litres per minute on your water main, there's no point going for a 40 KW combi. Your installer will discuss this with you.