Type of pipe for condensate

Question

What type of pipe is used for condensate in the average household? Can it vary depending on the type of household?

Anthony · Answer

21 mm overflow inside and 40 mm drain outside.

If you use 21 mm outside it will freeze in winter flooding boiler.

Cameron · Answer

Normally it's plastic waste pipe, you can't use copper as the water is acidic.

Lee · Answer

pvc inch and a quarter size pipe through the wall to outer drain

Darius · Answer

No it should be pvc as the chemical leaking from condense can effect copper

Michael · Answer

Fifteen mm copper pipe is normally used for condensing pipes

Gary · Answer

Cindensate Pipework is usually run for boilers - the best way is always internally I plastic overflow , but if running to outside most manufacturers  recommend 1 1/2 east pipe through wall to boiler and no longer than 3m with a good fall

Jack · Answer

21mm overflow pipe internally 32mm waste pipe externally

Yoan · Answer

The usual size of condensation pipe is 21.5mm white pvc
 for domestic use and it has to discharge in a gully waste or if it's discharged in garden trap has to be filled with limestone to neutralize the vapour acidic waste. Hope that helps👍.Non metallic pipes have to be used due to a high corrosive(acidic) nature of the condensated water.

Sid · Answer

White 20 mm overflow pipe, then increased to inch and a quarter Waze pipe external stop it freezing

Toufik · Answer

Condensing pipe from boiler usually 20mm to go to the drain 
But recently you have to run at least 32mm when outside the flat or house
Very stricted with vaillant warranty

Type of pipe for condensate

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