James Charlton, 31, of Hilltop View, Holmfirth, West Yorkshire, was convicted by a jury at Sheffield Crown Court on Thursday.

Probation officer Mark Ellis, 41, died at his home in Dodworth, near Barnsley.

It was found that Charlton had left a gap in a flue pipe when fitting a new boiler at the property.

Charlton was convicted on Thursday of manslaughter by gross negligence.

The incident happened in February 2008.