Stiebel Eltron DEL 18 Plus · 236741

DEL 18 Plus instantaneous water heater, 19.4 kW three-phase, 50°C limited

Name: DEL 18 Plus instantaneous water heater, 19.4 kW three-phase, 50°C limited
Brand: Stiebel Eltron
SKU: 236741
Price: 1535.60 AUD
Availability: InStock

A German-made three-phase continuous-flow heater that caps the outlet at 50°C, so bathrooms need no tempering valve. 19.4 kW: enough for one bathroom, plus a basin at the same time.

19.4 kWrated output

50°Cmax outlet, no tempering valve

27 Aper phase

7 yrsdomestic warranty

2.5 L/minswitch-on flow

3.2 kgweight

$1,535.60 $463 under RRP

GST included · Stiebel Eltron RRP $1,999

Australian stock · ships in 3-5 business days

Free delivery to capital citiesExcept Darwin. Elsewhere a flat $200.
Genuine Stiebel Eltron, Australian stockWith the manufacturer's Australian warranty.
Tax invoice by emailYou need it for warranty and rebate claims.
Secure checkoutVisa, Mastercard (Stripe) or bank transfer.

Right for: Homes and apartments with a three-phase supply that can provide 27 A per phase. Enough for one bathroom, plus a basin at the same time.
Not for: Single-phase homes: choose a heat pump with a tank, or a DHCE for one low-flow tap.

Why this model

Outlet capped at 50°C: no tempering valve where 50°C delivery is required.
Electronic control, set 20 to 50°C; backlit display with two memory keys.
ECO mode limits the flow to save water and energy.
Bare-wire element suits hard and soft water.
No flue, vent or safe tray. Accepts preheated (solar) water up to 50°C.
Works with the optional FFB 4 wireless remote.

In the box

DEL Plus water heater
Installation kit: wall bracket, plugs, gaskets, tees, caps, strainer, washers
On site, depending on the installation: cold water isolation valve, pressure limiting valve

Installer brief

What your plumber and electrician need to know

Send this to your installer before you order and ask for a fixed price. If anything here doesn't suit your house, you find out before you spend.

A licensed electrician confirms the three-phase supply can carry the load and runs a dedicated circuit.
No flue, ventilation or safe tray needed.

From the manufacturer's installation documents. Installation must follow them and the rules in your state.

Power	415 V three-phase, 27 A per phase, 32 A fuse
Size	466 x 225 x 116 mm
Weight	3.2 kg
Water connection	G 1/2 A
Max water pressure	1,000 kPa
Switch-on flow	2.5 L/min
Standards	AS/NZS 3000; AS/NZS 3500.4.2 and local rules

Technical data

Rated output	19.4 kW
Electrical	415 V, three-phase
Current per phase	27 A
Fuse	32 A
Temperature rise	46°C at 6 L/min, 34°C at 8 L/min, 27°C at 10 L/min
Temperature setting	20 to 50°C
Max inlet temperature (preheated)	50°C
Switch-on flow	2.5 L/min
Max pressure	1,000 kPa
Heating system	Bare wire
Protection	IP25
Size	466 x 225 x 116 mm
Weight	3.2 kg

Warranty

Domestic use: 7 years full parts and labour (1 year commercial). Stiebel Eltron requires installation by a licensed tradesperson and a certificate of compliance for a claim.

How warranty claims work