Insulating outdoor pipe from boiler

[mints73]

On the outside of property is approx 3 metre of plastic pipe with 2 elbow joints, it runs from the combi boiler to a drain.

I have been advised to insulate it before winter as it is outdoors and on view what is the best material please.

 

[doitall]

What size is the pipe.

 

[robin7]

Sounds like the condense pipe - usually 21.5mm plastic, same as overflow pipe. I'd insulate it using 22mm Climaflex pipe wrap, available from B&Q etc. Cut mitres carefully and wrap joins with insulating tape.

 

[doitall]

Sounds like the condense pipe - usually 21.5mm plastic, same as overflow pipe. I'd insulate it using 22mm Climaflex pipe wrap, available from B&Q etc. Cut mitres carefully and wrap joins with insulating tape.

Should be 32mm outside

 

[DP]

Hello Mr Scruff

 

[doitall]

Hello Mr Scruff

Hello Mr Danny

 

[JPC]

32mm..then u dont have to insulate
21.5 equals having to insulate

thats my thought on it anyhow

 

[kirkgas]

Sounds like the condense pipe - usually 21.5mm plastic, same as overflow pipe. I'd insulate it using 22mm Climaflex pipe wrap, available from B&Q etc. Cut mitres carefully and wrap joins with insulating tape.

Should be 32mm outside

or suitably insulated

 

[mysteryman]

Any outside condensate pipe must be carefully and effectively insulated.

It will freeze up in hard frosts otherwise, back up into the boiler, and stop it working.