As a follow up to the story earlier in the week, thousands of British Gas engineers are to stage five 24-hour strikes in the run-up to Christmas and after New Year.
GMB union leaders meeting near Birmingham agreed stoppages for 12, 19 and 21 December, and 6 and 9 January.
Out-of-hours calls will also not be handled from 12-23 December and 4-10 January, in a row over plans to close the final salary pension to new staff.
British Gas’s parent firm Centrica has said its new pension package is one of the best on the market.
It said the long-term viability of the final salary scheme, to be closed to new entrants from January, depended on the changes.
The GMB union has accused the company of breaking a deal it struck two years ago.
Nearly 6,000 engineers, who repair and service domestic boilers, backed industrial action by a ratio of four to one in a vote last week.
From The BBC