Hi

I bought a Joven JH35 water heater. Temperature drops rapidly after 20minutes, and the technician said it's normal. This is not my first time using Joven.

Why would I buy an expensive water heater that only gives hot water for 20 minutes, when the cheaper wall mounted tankless heater can do better...

Joven is reducing it's quality and lying with their heat chart.

Had anyone else had this problem ?