The DHC line is Stiebel Eltron\'s 240V point-of-use electric tankless — wall-mount units serving a single fixture or fixture group. Smaller than Tempra Plus, single circuit, hydraulic activation. For distant kitchen sinks, bathroom additions, ADUs, and RV applications where you need a "real" hot water source but not whole-house capacity.
The lineup
- DHC 4-2 — 3.8 kW, 240V 20A. Hand sinks
- DHC 6-2 — 5.4 kW, 240V 30A. Volume pick, bathroom sinks
- DHC 8-2 — 7.2 kW, 240V 40A. Low-flow shower applications
- DHC 10-2 — 9.6 kW, 240V 40A. Single shower at moderate temperature rise
- DHC-E 12 — 12 kW, electronic control with digital display. Premium point-of-use
How DHC differs from Tempra Plus
| DHC point-of-use | Tempra Plus whole-house | |
|---|---|---|
| Activation | Hydraulic switch (DHC 4-2 through 10-2) or electronic (DHC-E) | Electronic flow sensor |
| Power range | 3.8-12 kW | 14.4-36 kW |
| Circuits | Single 240V | 2-3 high-amperage circuits |
| Flow Control | No (DHC) / Yes (DHC-E) | Yes (all models) |
| Modulation | On/off (DHC) / modulating (DHC-E) | Modulating |
| Typical use | Single fixture | Whole house |
Common use cases
- Distant kitchen sink at the end of a long run from the main water heater
- Bathroom addition where extending main hot water lines is impractical
- ADU / garage apartment / detached office with single bathroom
- RV upgrade from propane tankless to electric when on shore power
- Workshop / barn / outbuilding with one sink and one shower
- Pet wash station in garage
Install
See install guide. Key:
- 240V dedicated breaker sized per model (20-40A)
- 10/2 NM cable on DHC 4-2 / 6-2; 8/2 on DHC 8-2 / 10-2; 6/2 on DHC-E 12
- ¾" plumbing (DHC 4-2 / 6-2 may use ½")
- Inlet shutoff and hot outlet shutoff
- Pressure relief / T&P valve
- Wall-mount, vertical orientation
DHC vs DHC-E
- DHC 4-2 through 10-2: hydraulic activation; on/off operation; lower cost ($299-649)
- DHC-E 12: electronic control; modulating; setpoint display; Flow Control; higher cost ($749-899)
DHC-E is the premium tier — recommended when temperature stability matters (showers).
Warranty
- 3-year heat exchanger
- 1-year parts
- Labor not covered
Bottom line
DHC is point-of-use 240V electric tankless. DHC 6-2 is the volume pick for bathroom sinks; DHC 10-2 for single showers; DHC-E 12 when you want electronic control and Flow Control on a single-fixture install.