リンナイアプリ is a utility application designed for iPhone users, allowing seamless control of RINNAI products from anywhere. The app enables users to manage essential home functions such as heating water for baths, activating floor heating, and turning off panel heaters with just a single tap. This convenience ensures that users can arrive home to a warm and inviting environment, enhancing overall comfort and efficiency in daily life.

The app supports various RINNAI devices including the ECO ONE remote control series and gas clothes dryers. Key features include operation control for automatic baths, floor heating, and display of device operation status and usage data. Additionally, users can optimize settings based on conditions such as solar power connections. It is essential to note that a smartphone and Wi-Fi environment must be prepared by the user for optimal functionality.