Camplux TEW18
#13 in ElectricFull review
A budget whole home heater for a small home in a warm climate. Buyers who want published flow and efficiency figures should pay more for a Stiebel or EcoSmart.
Amazon $278.95$278.95
The Camplux TEW18 is the better tankless water heater overall, rated 3.0 to 2.4. The Camplux TEW18 leads on value and heating power. The Bosch Tronic 4000 C 8 costs $24.96 less ($253.99 vs $278.95).
Bosch Tronic 4000 C 8
#18 in ElectricFull review
For instant hot water at a kitchen or bathroom sink far from the main heater.
Amazon $253.99$253.99
Prices were last checked November 1, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Camplux TEW18 for value ($15.50 per kW ($278.95, 18 kW) vs $29.88 per kW ($253.99, 8.5 kW)) and heating power (18 kW vs 8.5 kW).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every electric tankless water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Camplux TEW18 | Bosch Tronic 4000 C 8 |
|---|---|---|
| Overall rating | 3.0/5 | 2.4/5 |
| Value 35% | 81 $15.50 per kW ($278.95, 18 kW) | 31 $29.88 per kW ($253.99, 8.5 kW) |
| Heating power 25% | 28 18 kW | 0 8.5 kW |
| Efficiency 15% | 50 UEF not published (neutral score used) | 25 0.92 UEF |
| Warranty 25% | 0 3-year heat exchanger warranty | 50 heat exchanger warranty not published (neutral score used) |
Specifications
| Camplux TEW18 | Bosch Tronic 4000 C 8 | |
|---|---|---|
| Heating | ||
| Fuel | Electric | Electric |
| Electric power | 18 kW | 8.5 kW |
| Max flow | - | 1.6 GPM |
| UEF | - | 0.92 |
| Installation | ||
| Voltage | 240 V | 240 V |
| Breakers | 80 A total | 40 A total |
| Weight | - | 4.4 lb |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | No |
| Heat exchanger warranty | 3 years | - |
| Parts warranty | 2 years | - |
| Released | - | 2023-01 |