SHP-O 300 Plus
Free delivery*
SHP-O 300 Plus hot water heat pump, 300 litres
For 4-6 people, most climates
300 LCOP 4.21Down to -5°C
$3,829
RRP $5,199 · save 26%
Hot water heat pumps
Hot water heat pumps
A heat pump heats your water with heat taken from the outside air, so it uses about a quarter to a third of the electricity of an electric storage tank. Stiebel Eltron's units plug into a normal 10 amp power point and earn the federal rebate.
- 200 to 302 litres
- Normal 10 A power point
- Rebate about $530-$610 (STCs, 2026)
6 models from $3,334.10, GST included.
Six models, two sizes
SHP-O 200 Plus
Free delivery*
SHP-O 200 Plus hot water heat pump, 200 litres
For 2-4 people, most climates
200 LCOP 4.27Down to -5°C
$3,389
RRP $4,849 · save 30%
SHP-O 301 Premium
Free delivery*
SHP-O 301 Premium hot water heat pump, 300 litres, cold climate
For 4-6 people, any climate
300 LDown to -10°CActive defrost
$4,169
RRP $5,349 · save 22%
SHP-O 201 Premium
Free delivery*
SHP-O 201 Premium hot water heat pump, 200 litres, cold climate
For 2-4 people, any climate
200 LDown to -10°CActive defrost
$3,729
RRP $4,999 · save 25%
WWK 302 H
Free delivery*
WWK 302 H hot water heat pump, 302 litres, with smart element
For 5-6 people, quietest model
302 L45 dB(A) at 1 mSmart element
$3,527.70
RRP $5,349 · save 34%
WWK 222 H
Free delivery*
WWK 222 H hot water heat pump, 220 litres, with smart element
For 3-4 people, quietest model
220 L45 dB(A) at 1 mSmart element
$3,334.10
RRP $4,999 · save 33%
No models match that filter.
*Free delivery to Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra and Hobart. $200 elsewhere.
The six models side by side
| Model | Tank | Heat pump works down to | Max water | Noise (as published) | STCs, Sydney 2026 | Warranty, cylinder / sealed system | Price |
|---|---|---|---|---|---|---|---|
| SHP-O 300 Plus | 300 L | -5°C | 65°C | 47 dB(A) at 2 m | 15 | 7 / 5 yrs | $3,829 |
| SHP-O 200 Plus | 200 L | -5°C | 65°C | 47 dB(A) at 2 m | 14 | 7 / 5 yrs | $3,389 |
| SHP-O 301 Premium | 300 L | -10°C | 75°C | 47 dB(A) at 2 m | 15 | 7 / 5 yrs | $4,169 |
| SHP-O 201 Premium | 200 L | -10°C | 75°C | 47 dB(A) at 2 m | 14 | 7 / 5 yrs | $3,729 |
| WWK 302 H | 302 L | -5°C | 65°C | 45 dB(A) at 1 m | 14 | 5 / 2 yrs | $3,527.70 |
| WWK 222 H | 220 L | -5°C | 65°C | 45 dB(A) at 1 m | 14 | 5 / 2 yrs | $3,334.10 |
How to choose
Three questions decide the model
1
How many people live there?
As a general guide, 200 to 220 litres suits 2 to 4 people. 300 litres suits 4 to 6, or a smaller household with long showers or a big bath.
2
How cold are your winters?
The SHP-O Plus works down to -5°C and suits most of Australia. In Canberra, Tasmania, alpine areas and the colder parts of Victoria, choose the Premium: active defrost, heat pump running down to -10°C, and STCs in zone 5.
3
Where will it stand?
Outdoors it needs 500 mm clear either side of the air grille. Indoors it needs a room of at least 13 cubic metres. Every model plugs into a normal 10 amp power point.
FAQ
Questions about hot water heat pumps
How much will I save compared with an electric storage tank?
As a modelled estimate: a household of four using about 200 litres of 60°C water a day needs around 4,400 kWh of heat a year. An electric tank turns that into a bill of about $1,450 at 33 cents per kWh. A heat pump averaging a COP of 3.5 over the year uses about 1,250 kWh, or about $410. That is roughly $1,000 a year less on a general tariff, or about $600 on a cheaper off-peak tariff. Your result depends on your hot water use, your tariff and your climate.
Will it keep working in winter?
Yes. The SHP-O Plus and the WWK keep heating with the heat pump down to -5°C outside, the SHP-O Premium down to -10°C. Below that, the built-in electric element keeps the water hot. For regular hard frosts, choose the Premium.
Can a hot water heat pump heat my house as well?
No. These units heat water for taps and showers only, and Stiebel Eltron warns that warm water returning into the cold inlet would damage them. For floor heating or radiators you need an air-to-water heat pump.
Are they noisy?
Stiebel Eltron publishes 45 dB(A) at 1 metre for the WWK and 47 dB(A) at 2 metres for the SHP-O. Converted to the same distance (sound drops about 6 dB each time the distance doubles), the WWK is the quieter of the two. Either way, put the unit away from bedroom windows.
What does the installation involve?
A licensed plumber connects the water, fits a tempering valve for the bathrooms and any other valves your area needs, and plans a drain for the condensate. The unit plugs into a 10 amp outlet. Every product page has an installer brief to send them, so you can get a fixed price before you order.
Which rebate can I claim?
Every model earns the federal STC rebate after installation. Some states add more through accredited installers. See rebates by state.
Not sure which one?
Our selector asks four questions and recommends one model, with the reasons.