◆ NotesIf it has not been updated for a long time, it may take some time to update and start up after the update.It is an application that allows you to operate the water heater and visualize the energy.You can use it by connecting to a water heater that supports this application.◆ Target devices / main functionshttps://iot-gas.jp/manual/hotwaterapp20/target_model.htmlPlease check here.◆ Notes・ This application is not compatible with tablets.・ This service may not be available depending on your router, smartphone, and communication environment.・ To use the service, you need an always-on Internet environment and a wireless LAN environment.・ Internet environment ・ Wireless LAN environment ・ Please prepare your smartphone-The wireless LAN router must support the WPA2 / WPA encryption method and IEEE802.11b / g / n (n is only in the 2.4GHz band).・ Customers are responsible for paying the charges related to the use of the Internet and smartphones.・ The service content and screen design of the app are subject to change without notice.◆ InquiriesFor inquiries and opinions about the app, please contact "Settings" → "Inquiries about the app" or here.https://iot-gas.jp/manual/hotwaterapp20/contact.html