Hi Been reading up on all your posts and have following to say , Running a 18l Gengas Geyser 19kg Bottle, 2 ppl in the house one showers one baths usual every day dishes and more usage on Saterday when maid is here . I have been monitoring gas usage monthly since I installed it in Nov 25 This has Been My usage since Jan 2026 Setting on Summer 50 Degrees From 17-12-25 To 10-2-26 19 Kg lasted 55 days From 10-2-26 To 10-4-26 19 kg lasted 59 days Setting on Winter 60 degrees From 10-4-26 To 20-5-26 19 Kg lasted 39 days From 20-5-26 To 22-6-26 19 Kg lasted 33 days As water is colder out ground needs more heat to warm to 60 Degrees I will see end of July what usage is..