A Surrey firefighter died at Staines Fire Station on the evening of Saturday 15 February.
Clifford Cox was a member of the Fire Brigades Union and had served in Surrey Fire and Rescue Service for 25 years.
Matt Wrack, FBU general secretary, said: “I know that members will join me in sending condolences to Clifford’s family, friends and colleagues at such a terrible time.”
The union said that it had taken steps to ensure that advice and assistance is provided to Clifford’s family as necessary.
You can read more in members’ circular 2014HOC0115MW.