Nice feature additions @Andre_K, both Calculate dhw standby loss by andrekuehne · Pull Request #205 · emoncms/app · GitHub and Add DHW data to myheatpump app by andrekuehne · Pull Request #204 · emoncms/app · GitHub. Both merged and added to emoncms.org.
Im getting 1.3-1.5 W/K on my 150L tank 