RHOSS TWCZ-B 300
The RHOSS TWCZ-B 300 is a heat pump water heater with water heating efficiency ηwh 117 %, load profile XL and energy label A.1
Key figures
Technical specifications
| General | |
|---|---|
| Load profile | XL1 |
| Registered in EPREL | 2023-021 |
| Efficiency | |
| Water heating efficiency ηwh | 117 %1 |
| ηwh, colder climate | 105 %1 |
| ηwh, warmer climate | 125 %1 |
| Energy label | A1 |
| Annual electricity use, colder climate | 1,546 kWh1 |
| Annual electricity use, warmer climate | 1,340 kWh1 |
| Noise | |
| Indoor sound power | 58 dB(A)1 |
| Connectivity & smart | |
| Smart control | Yes1 |
| Off-peak hours only | Yes1 |
How it ranks
Water heating efficiency ηwh: better than 4% of comparable models in our database (Heat pump water heaters · Load profile XL; n = 159).
Rank 151 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:
- TWCZ-B 300
- TWCZ-S 300
Compare with
Similar models
Other brands, same type and a comparable size.
More from RHOSS
- RHOSS TWCTZ-B 300 Water heating efficiency ηwh: 131 %
- RHOSS TWCTZ-B 200 Water heating efficiency ηwh: 132 %
- RHOSS TWCZ-B 200 Water heating efficiency ηwh: 101 %
Guides on heat pump water heaters
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Frequently asked questions
What is the water heating efficiency ηwh of the RHOSS TWCZ-B 300?
The water heating efficiency ηwh of the RHOSS TWCZ-B 300 is 117 %.1
Which load profile does the RHOSS TWCZ-B 300 have?
The RHOSS TWCZ-B 300 has load profile XL.1
Which energy label does the RHOSS TWCZ-B 300 have?
The RHOSS TWCZ-B 300 has energy label A.1
What is the indoor sound power of the RHOSS TWCZ-B 300?
The indoor sound power of the RHOSS TWCZ-B 300 is 58 dB(A).1
Sources
- European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed 13 Oct 2026