Length of condensate pipe

How long can a condensate pipe be?

Asked by Cheryl on 6th Dec 2022
Expert Trade Answers
"Normally the max for an external run is 3m, the pipe should be 40mm and incorporate an air brake."
Answered on 6th Dec 2022 - Member since May 2020 - report
"The external pipe run should be kept as short as possible to a maximum of 3 metres, taking the most direct and “most vertical” route to the discharge point, with no horizontal sections in which condensate might collect."
Answered on 6th Dec 2022 - Member since Apr 2022 - report
"Hi. It should be a maximum of 3 metres and take the most direct route to the drain"
Answered on 6th Dec 2022 - Member since May 2019 - report
"500 mm then converted to 1/4 waste pipe stop freezing 🥶"
Answered on 6th Dec 2022 - Member since Oct 2016 - report
"The recommended length externally is 3m with a sufficient fall to stop freezing. - best results is alway to run internally to waste etc -"
Answered on 15th Dec 2022 - Member since Oct 2022 - report
"If outside then as short as possible. No max length internally"
Answered on 6th Dec 2022 - Member since Jul 2019 - report
"Ideally as short as possible however if its insulated as long as you like."
Answered on 6th Dec 2022 - Member since Nov 2022 - report
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