HHboxmoor

Hello. Complete beginner question here. I've had a Vaillant AroTherm 5kw plus installed recently on a 3 bedroom end-of-terrace house with a conservatory. Heat loss calculated around 4.4 kW. Hot water tank is a unistor 180L. Question is: My system is saying the power consumption for DHW is almost 5x larger than my power consumption for heating. Does this make any sense? What would be the expected ratio between consumption for DHW and heating?