There are 5 different model Greenstar Boilers designed for space heating only and they are sized by thier BTU capacity.
- Bosch Greenstar 57, (57.2K BTU), 98.7% efficiency
- Bosch Greenstar 79, (79.2K BTU), 98.7% efficiency
- Bosch Greenstar 100, (100.8K BTU), 98.5% efficiency
- Bosch Greenstar 131, (131.9K BTU), 97.5% efficiency
- Bosch Greenstar 151, (151.6K BTU), 96.8% efficiency
These Greenstar condensing space heating boilers can be used for either Natural Gas or Liquid Propane installations. The heaters come preset for Natural Gas (NG), but can be converted to Liquid Propane (LP). A gas conversion kit is included.
The Greenstar boilers come with a temperature control FW 200 that can either be mounted to the heater or mounted to the wall beside the heater. This module allows the heater to be set for different temperatures, zones and the time of day the heater comes on and goes off. The FW 200 control also comes with a temperature probe that goes to the outside and detects and monitors the outside temperature and then allows the heater to remember the coldest and warmest times of the day and year.
The Greenstar condensing space heating boilers are specifically designed for space heating only but can also be used for Domestic Hot Water (DHW) when they are piped to an indirect tank and using a pump, aquastat and check valves.