SS Gasfire was a British steam collier of the Gas Light and Coke Company (GLCC).

In 1936 SP Austin & Son, Ltd at Sunderland on the River Wear built a pair of colliers for the GLCC, completing Mr. Therm in May[1] and her sister ship Gasfire in October.

In the Second World War, Kriegsmarine E-boats and U-boats attacked British coastal shipping both by torpedo and by minelaying.

A torpedo fired by S-27 blew off Gasfire's stern, disabling her and killing 11 crew, but she remained afloat.

[5] On 21 June she left Southend for the Tyne, sailing with Convoy EC 36 which would continue around Cape Wrath to Oban.

Umpleby, was awarded the King's Commendation for Brave Conduct and Lloyd's War Medal for Bravery at Sea.