The church houses a large pipe organ by the German organ builder Johannes Klais of Bonn. It has mechanical action, four manuals and pedal, 102 ranks, 72 stops and 5275 pipes.[1] It is 15 metres tall and weighs 25 tons. Its construction was finished in December 1992. It has been recorded by Christopher Herrick in his Organ Fireworks VII CD and by Mattias Wager on his CD Live at Vatnajökull.