ASTON 300
The ASTON 300 is a heat pump water heater with water heating efficiency ηwh 112 %, load profile L and annual electricity use (average climate) 1389 kWh.1
Key figures
Technical specifications
| General | |
|---|---|
| Load profile | L1 |
| Registered in EPREL | 2026-021 |
| Efficiency | |
| Water heating efficiency ηwh | 112 %1 |
| ηwh, colder climate | 98 %1 |
| ηwh, warmer climate | 119 %1 |
| Energy label | A1 |
| Annual electricity use (average climate) | 1,389 kWh1 |
| Annual electricity use, colder climate | 1,865 kWh1 |
| Annual electricity use, warmer climate | 1,397 kWh1 |
| Noise | |
| Indoor sound power | 46 dB(A)1 |
| Outdoor sound power | 46 dB(A)1 |
| Connectivity & smart | |
| Off-peak hours only | No1 |
How it ranks
Water heating efficiency ηwh: better than 8% of comparable models in our database (Heat pump water heaters · Load profile L; n = 175).
Rank 162 of 176
Compared with every model on VersusIndex in the same group with a known value; equal values do not count as better. This says nothing about price, installation or reliability.
Compare with
Similar models
Other brands, same type and a comparable size.
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Frequently asked questions
What is the water heating efficiency ηwh of the ASTON 300?
The water heating efficiency ηwh of the ASTON 300 is 112 %.1
Which load profile does the ASTON 300 have?
The ASTON 300 has load profile L.1
What is the annual electricity use (average climate) of the ASTON 300?
The annual electricity use (average climate) of the ASTON 300 is 1389 kWh.1
Which energy label does the ASTON 300 have?
The ASTON 300 has energy label A.1
Sources
- European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed Oct 13, 2026