Immergas RAPAX 300 V4
The Immergas RAPAX 300 V4 is a heat pump water heater with water heating efficiency ηwh 132 %, load profile XL and energy label A+.1
Key figures
Technical specifications
| General | |
|---|---|
| Load profile | XL1 |
| Registered in EPREL | 2026-031 |
| Efficiency | |
| Water heating efficiency ηwh | 132 %1 |
| ηwh, colder climate | 107 %1 |
| ηwh, warmer climate | 141 %1 |
| Energy label | A+1 |
| Annual electricity use, colder climate | 1,561 kWh1 |
| Annual electricity use, warmer climate | 1,190 kWh1 |
| Noise | |
| Indoor sound power | 54 dB(A)1 |
| Outdoor sound power | 54 dB(A)1 |
| Connectivity & smart | |
| Off-peak hours only | No1 |
How it ranks
Water heating efficiency ηwh: better than 30% of comparable models in our database (Heat pump water heaters · Load profile XL; n = 159).
Rank 108 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 belongs to a series of 5 variants with the same load profile and energy class. The figures on this page apply to the variant above; other variants differ in: Water heating efficiency ηwh 124–132 %. After each type number you can see what differs:
- RAPAX 300 V4
- RAPAX 300 SOL V2 — Water heating efficiency ηwh: 124 %; Annual electricity use, colder climate: 1,679 kWh; ηwh, colder climate: 100 %; Indoor sound power: 47 dB(A)
- RAPAX 300 SOL V3 — Water heating efficiency ηwh: 124 %; Annual electricity use, colder climate: 1,554 kWh; Annual electricity use, warmer climate: 1,118 kWh; ηwh, colder climate: 100 %
- RAPAX 300 SOL V4 — Water heating efficiency ηwh: 128 %; Annual electricity use, colder climate: 1,614 kWh; Annual electricity use, warmer climate: 1,167 kWh; ηwh, colder climate: 104 %
- RAPAX 300 V2 — Water heating efficiency ηwh: 127 %; Annual electricity use, colder climate: 1,613 kWh; Annual electricity use, warmer climate: 1,102 kWh; ηwh, colder climate: 103 %
Compare with
Similar models
Other brands, same type and a comparable size.
More from Immergas
- Immergas IMMERWATER 300 V5 Water heating efficiency ηwh: 123 %
- 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 %
How we collect and check this data →
Frequently asked questions
What is the water heating efficiency ηwh of the Immergas RAPAX 300 V4?
The water heating efficiency ηwh of the Immergas RAPAX 300 V4 is 132 %.1
Which load profile does the Immergas RAPAX 300 V4 have?
The Immergas RAPAX 300 V4 has load profile XL.1
Which energy label does the Immergas RAPAX 300 V4 have?
The Immergas RAPAX 300 V4 has energy label A+.1
What is the indoor sound power of the Immergas RAPAX 300 V4?
The indoor sound power of the Immergas RAPAX 300 V4 is 54 dB(A).1
Sources
- European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed 13 Oct 2026