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Heat pump water heaters · INT

NIBE MT-WH21-019-F

NIBE MT-WH21-019-F
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The NIBE MT-WH21-019-F is a heat pump water heater with water heating efficiency ηwh 146 %, load profile L and energy label A+.1

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Water heating efficiency ηwh
146%1
Load profile
L1
Official source
Energy label
A+1
Official source
Indoor sound power
49dB(A)1
Official source
ηwh, colder climate
131%1
Official source

Technical specifications

General
Load profileL1
Registered in EPREL2024-081
Efficiency
Water heating efficiency ηwh146 %1
ηwh, colder climate131 %1
ηwh, warmer climate165 %1
Energy labelA+1
Annual electricity use, colder climate779 kWh1
Annual electricity use, warmer climate620 kWh1
Noise
Indoor sound power49 dB(A)1
Connectivity & smart
Off-peak hours onlyNo1

How it ranks

Water heating efficiency ηwh: better than 78% of comparable models in our database (Heat pump water heaters · Load profile L; n = 175).

Rank 38 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.

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:

  • MT-WH21-019-F
  • MT-WH21-019-FS

Manufacturer documentation

External links to NIBE's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.

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 NIBE MT-WH21-019-F?

The water heating efficiency ηwh of the NIBE MT-WH21-019-F is 146 %.1

Which load profile does the NIBE MT-WH21-019-F have?

The NIBE MT-WH21-019-F has load profile L.1

Which energy label does the NIBE MT-WH21-019-F have?

The NIBE MT-WH21-019-F has energy label A+.1

What is the indoor sound power of the NIBE MT-WH21-019-F?

The indoor sound power of the NIBE MT-WH21-019-F is 49 dB(A).1

Sources

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