The information below is to familiarize people with the location of the serial number on their Bosch Gas-Fired Greenstar Boiler. The serial number will be needed for registering the unit with Bosch so that the customer gets a full warranty. The serial number is located in 2 places on the Greenstar boiler itself. Please see the images below for location of the serial number.
Please call Global Protankless Supply at 866-289-4652 for further questions about the Bosch Greenstar boilers