Stiebel Eltron Eltron WWK 302 Questions & Answers

Dear Ian,
Very good morning to you.
Thank you for your message.
Power consumption of a stiebel eltron depends on your usage. If you are comparing a stiebel eltron heat pump with a standard electric tank. Normally for a replacement at same house its 80 % less power consumption .
Hopefully this helps.

Have checked with Stiebel Eltron and below is the reply:
The average daily consumption on Tariff 33 Energy Bill is 1.9kW

We are a household of 5 (4 of them female, I feel I need to mention that :-) ) with a WWK302 in Sydney. The geek I am I have installed a Watt meter on my unit which has been measuring the electricity usage for the past 97 days (1 Feb to 9 May). Total usage is 210kWh which makes 2.16kWh per day. So, multiply this with your electricity price (average is around $0.22/kWh) and that gives you a cost of abut $0.45 per day to run. Note that this period is the warm weather period in Sydney, so I would expect the consumption to go up as outside temperatures drop (less heat to pump from the surrounding air, cold water inlet temperature lower, hence more energy needed).

I have three different rates, peak, shoulder and off peak and I run my unit on a timer to only kick in after 22:00 when my rate is $0.12/kWh which results in about $0.26 per day or just under $100 per year. Hope this helps.