Immergas IMMERWATER 300 V5
The Immergas IMMERWATER 300 V5 is a heat pump water heater with water heating efficiency ηwh 123 %, load profile XL and energy label A+.1
Key figures
Technical specifications
| General | |
|---|---|
| Load profile | XL1 |
| Registered in EPREL | 2025-121 |
| Efficiency | |
| Water heating efficiency ηwh | 123 %1 |
| ηwh, colder climate | 95 %1 |
| ηwh, warmer climate | 148 %1 |
| Energy label | A+1 |
| Annual electricity use, colder climate | 1,759 kWh1 |
| Annual electricity use, warmer climate | 1,131 kWh1 |
| Noise | |
| Indoor sound power | 53 dB(A)1 |
| Outdoor sound power | 53 dB(A)1 |
| Connectivity & smart | |
| Off-peak hours only | No1 |
How it ranks
Water heating efficiency ηwh: better than 10% of comparable models in our database (Heat pump water heaters · Load profile XL; n = 159).
Rank 140 of 160
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.
Variants
This model is registered in 2 combinations (for example with a different indoor unit or cylinder) with exactly the same performance. All figures on this page apply to each of these types. The part of the type number that differs is in bold; small differences (e.g. cylinder volume or anode) are listed after it:
- IMMERWATER 300 V5
- IMMERWATER 300S V5
Similar models
Other brands, same type and a comparable size.
More from Immergas
- Immergas RAPAX 300 V4 Water heating efficiency ηwh: 132 %
- Immergas IMMERWATER 190 V5 Water heating efficiency ηwh: 115 %
- Immergas RAPAX 100 V4 Water heating efficiency ηwh: 111 %
- Immergas RAPAX 200 V4 Water heating efficiency ηwh: 131 %
Guides on heat pump water heaters
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Frequently asked questions
What is the water heating efficiency ηwh of the Immergas IMMERWATER 300 V5?
The water heating efficiency ηwh of the Immergas IMMERWATER 300 V5 is 123 %.1
Which load profile does the Immergas IMMERWATER 300 V5 have?
The Immergas IMMERWATER 300 V5 has load profile XL.1
Which energy label does the Immergas IMMERWATER 300 V5 have?
The Immergas IMMERWATER 300 V5 has energy label A+.1
What is the indoor sound power of the Immergas IMMERWATER 300 V5?
The indoor sound power of the Immergas IMMERWATER 300 V5 is 53 dB(A).1
Sources
- European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed 13 Oct 2026