Heat pump water heaters · INT

OUTES AAb21R1/300ES

The OUTES AAb21R1/300ES is a heat pump water heater with water heating efficiency ηwh 137 %, load profile XL and energy label A+.1

Key figures

Water heating efficiency ηwh
137%1
Load profile
XL1
Official source
Energy label
A+1
Official source
Indoor sound power
40dB(A)1
Official source
ηwh, colder climate
137%1
Official source

Technical specifications

General
Load profileXL1
Registered in EPREL2026-031
Efficiency
Water heating efficiency ηwh137 %1
ηwh, colder climate137 %1
ηwh, warmer climate137 %1
Energy labelA+1
Annual electricity use, colder climate1,217 kWh1
Annual electricity use, warmer climate1,217 kWh1
Noise
Indoor sound power40 dB(A)1

How it ranks

Water heating efficiency ηwh: better than 42% of comparable models in our database (Heat pump water heaters · Load profile XL; n = 159).

Rank 89 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:

  • AAb21R1/300ES
  • AAb21R1/300E — Registered in EPREL: 2026-01

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Frequently asked questions

What is the water heating efficiency ηwh of the OUTES AAb21R1/300ES?

The water heating efficiency ηwh of the OUTES AAb21R1/300ES is 137 %.1

Which load profile does the OUTES AAb21R1/300ES have?

The OUTES AAb21R1/300ES has load profile XL.1

Which energy label does the OUTES AAb21R1/300ES have?

The OUTES AAb21R1/300ES has energy label A+.1

What is the indoor sound power of the OUTES AAb21R1/300ES?

The indoor sound power of the OUTES AAb21R1/300ES is 40 dB(A).1

Sources

  1. European Product Registry for Energy Labelling (EPREL) – water heaters — Europese Commissie · accessed Oct 13, 2026