1) Source: Moritz, A.R. and Henriques, F.C., Jr. (1947).
Studies of thermal injury. II. The relative importance of
time and surface temperature in the causation of
cutaneous burns, Am J of Pathol, 23, 695-720.
Approximate time-temperature relationship until
there is a risk of scalding
This product can expose you to chemicals including lead, which
is known to the State of California to cause cancer and birth
defects or other reproductive harm. For more information go to
BOSCH water heater complies with the State of California Lead
Greentherm T9900 SE/i residential models
– maximum temperature 120 °F (49 °C)
Color Display with touch controls.
High power segmented burner with low NOx
emissions.Modulating gas valve with pressure regulator.
Modulating water valve.
Active by pass water valve for quick response to changing
Burner power segmentation with modulation range from
High quality materials for long working life
Copper primary heat exchanger.
Stainless Steel 316L condensing heat exchanger
Compact space saver: mounts on a wall with a supplied
Easily removable one-piece cover.
On/Off and Temperature touch control.
Reset function - Long press (> 3 sec.) the ON/OFF button.
Programmable default temperature.
Failure codes with message display for easy diagnostics
1) Can be reprogrammed to achieve 140 °F (60 °C)
Greentherm T9900 SE/i – 6 720 813 635 (2019/03)
Real-time diagnostics for troubleshooting/informational
Built in freeze prevention.
Integrated siphon to limit condensate freezing in external
The freeze prevention kit is designed to provide protection for
the water heater down to approximately -4 °F (-20 °C) for
short term conditions only. It will not protect the appliance in
areas where the temperature is routinely expected to be below
Drain the water heater in the event of power outage in freezing
Accessories (Bosch part #)
Neutralizer Kit (7738001483)
Wi-Fi module [802.11 b/g/n (2.4 GHz)] (7736504944)
Aquastat kit (7736504584)
Recirculation pump kit (7736504585)
Tank loading NTC (7736504583)
Wired remote control (7736504946)
Wired remote control with WiFi (7736504945)
BOSCH is constantly improving its products, therefore
specifications are subject to change without prior notice.