The Bosch Home Comfort app is Bosch's Wi-Fi remote control for compatible Greentherm and Greenstar units. Less mature than Rinnai ControlR or Navien NaviLink but functional and improving.
Supported models
- Greentherm 9999 SE (built-in Wi-Fi)
- Greentherm 9900 SE (with Wi-Fi accessory module)
- Greenstar 100 / 131 / 151 (with Wi-Fi accessory module)
- Bosch IDS Premium heat pumps (cross-product app)
Older Greentherm units, Tronic POU mini-tanks, and Tronic Heat 3000 are NOT Home Comfort compatible — temperature is set directly on the unit.
Setup
- Download Bosch Home Comfort app (iOS App Store / Google Play)
- Create a Bosch account
- On the controller, navigate to Settings → Wi-Fi → Pair Mode
- In the app, tap Add Unit; the module broadcasts a temporary SSID
- Connect phone to temporary SSID; enter home 2.4 GHz Wi-Fi credentials
- Wait 60 seconds for unit to register with Bosch servers
Critical: 2.4 GHz Wi-Fi only. Disable 5 GHz on combined SSIDs during pairing if needed.
Features
- Temperature setting (98°F to 140°F residential)
- Schedule control — time-based hot-water priority
- Error code alerts (push notifications)
- Operating history (basic gas usage and runtime)
- Vacation mode (lowers temp during away periods)
- Firmware updates pushed via app
Smart home integrations
- Apple HomeKit (limited — temperature read/set only)
- Google Home (similar)
- Amazon Alexa (voice temperature query)
Home Comfort's smart-home integration is less polished than Rinnai's ControlR but improving with each firmware update.
Common Wi-Fi connection issues
- Module won't connect: 2.4 vs 5 GHz mismatch (most common); router MAC filtering
- "Disconnected" status: Wi-Fi signal too weak — mesh node or extender
- Repeated drops: router DHCP exhaustion — assign static IP to the Bosch's MAC
- Account login issues: verification email occasionally to spam folder
Bottom line
Home Comfort does the basic remote control well. For temperature monitoring and error code alerts, it's adequate. For comparison shopping vs Rinnai ControlR or Navien NaviLink, Bosch's app is the weakest of the three majors — but the gap is small enough that the underlying Bosch product quality usually wins the decision.