Stiebel Eltron / Instantaneous electric
Stiebel Eltron DEL 27 Plus
The higher-output DEL Plus model, offering on-demand electric hot water with electronic temperature control. Requires a suitable three-phase supply.
- Electrical supply
- Three phase
- Rated output at 415 V
- 28 kW
- Rated current at 415 V
- 38.9 A per phase
- Temperature adjustment
- 20–50°C
- Dimensions (H × W × D)
- 466 × 225 × 116 mm
- Manufacturer article number
- 236742
Comparing instantaneous options
The DEL 27 Plus offers a higher heating output than the DEL 18 Plus in the same compact format. The appropriate model depends on water demand and the electrical capacity available at the property.
Confirm suitability first
Send Lee your current system’s brand and model and describe the replacement you are considering. He will confirm whether he can help, availability and the installation requirements before quoting.
Electrical figures above are for a 415 V supply.
Product details were checked against the Stiebel Eltron manufacturer page on 5 October 2026. Refer to the manufacturer’s current installation and warranty documents for full conditions.
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Request a quote for Stiebel Eltron DEL 27 Plus. We’ll include the model in your enquiry.