Tube insulation size?

[DIYorBust]

I have 1-1/4 copper tubing in some parts of my heating system. Would this be the correct product? Am I right to assume I'm looking for 1-3/8 insulation for the 1-1/4 copper tubin? I'm looking at tubolit DGS13812 https://www.homedepot.com/p/Tubolit...ion-150-Lineal-Feet-Carton-DGS13812/203357721.


Thanks,

DIY

 

[Tuttles Revenge]

Correct. 1-3/8 is the OD for 1-1/4 copper tube

 

[Sponsor]

 

[Jeff H Young]

Thats a 1/2 inch thick differant wall thickness 's available too

 

[DIYorBust]

Yes I was going to ask about that next. It's for a hot water heating system. Should I do 1 inch thickness? It's a lot more expensive and potentially tight in some places. The pipes do run close to exterior walls.

 

[Jeff H Young]

Don't be afraid to have 2 thicknesses if you've got a spot you cant get full thickness use the half inch. comes in 6 foot length.
My experience I don't see 1/2 " much other than on residential A/C lines . I'm not in heating hotwater other than on big commercial and institutional where all hot is 1 inch thick. single fam homes here all all forced air heat so I don't have opinion on sizing

 

[Tuttles Revenge]

more the better. ultimately youre reducing energy loss over a long time.. probably pays for itself in under 5yrs.