I suspect that this is bad practice but my plumber has my boiler condense pipe terminating into an external drain. This is a ~1cm pipe which comes out of the house and travels around 2 metres along the external wall before it drops into the drain. This freezes in the winter and causes the boiler to fail.
We then pour hot water over it to get things working again. I need to protect this against freezing and was thinking of using pipe lag. Can you please confirm if this will help or provide any other suggestions.
We then pour hot water over it to get things working again. I need to protect this against freezing and was thinking of using pipe lag. Can you please confirm if this will help or provide any other suggestions.