I have just put central heating on and there is black smoke coming out of the stack on the roof. Any ideas? Boiler is a year old
Many thanks

I have just put central heating on and there is black smoke coming out of the stack on the roof. Any ideas? Boiler is a year old
many thanks

Sounds like it is running dirty which usually means it needs a tune up OR somehow the combustion air is restricted. Call the company that installed it to check it out.

Since it is kind of old, it would be like it it right now!