Bosch Tronic 4000 C 10
#15 in ElectricFull review
For a busy kitchen sink or a pair of sinks that need more flow than a small point of use heater gives.
Amazon $251.99$251.99
2.6/5
For a small home or cabin on a 100 A service in a warm climate where a steady shower temperature matters more than flow. Homes with more service get more for the money from a Trend model.
- 14.4 kWHeating power
- 3 GPMMax flow
- 0.96UEF
- 7 yearsHeat exchanger warranty
Check price at Amazon$619
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Advanced Flow Control slows the flow slightly instead of running lukewarm when demand outpaces the heater
- Works on a 100 A service, which most homes already have
- A 7 year leakage warranty and German build
Cons
- Costs more than the 24 kW Tempra 24 Trend while giving far less hot water
- Only enough for one shower at a time in warm climates
- No Wi-Fi or app control
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its fuel. How we rank explains each one.
Specifications
| Model number | 239220 |
|---|---|
| Heating | |
| Fuel | Electric |
| Electric power | 14.4 kW |
| Max flow | 3 GPM |
| UEF | 0.96 |
| Installation | |
| Voltage | 240 V |
| Breakers | 60 A total |
| Weight | 16.1 lb |
| Features | |
| Built-in recirculation | No |
| Wi-Fi | No |
| Heat exchanger warranty | 7 years |
| Parts warranty | 3 years |
Alternatives in this fuel
Bosch Tronic 6100 C 18
#16 in ElectricFull review
For a small home or apartment in a warm climate that wants the Bosch name. Most buyers get more power for the money elsewhere.
Amazon $585.46$585.46
Bosch Tronic 4000 C 8
#18 in ElectricFull review
For instant hot water at a kitchen or bathroom sink far from the main heater.
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