Primus AB is a manufacturer of portable cooking devices and outdoor stoves based in Stockholm, Sweden.
On April 28, 2023, Fenix Outdoor International AG announced that it had sold Primus AB to Silva Group.
And in 1953, Sir Edmund Hillary and Tenzing Norgay relied on Primus stoves during their first ascent of Mount Everest.
The Eta series consists of various cooking systems (burner, windshield, pots with heat exchanger) that increase fuel efficiency up to twice that of conventional stoves.
In 2012, Primus introduced the OmniLite stove, a lighter and more compact version of the OmniFuel, optimized for use with Eta Pots.