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Heat pump water heaters · UK

Buderus 7738340434

Buderus 7738340434
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The Buderus 7738340434 is a heat pump water heater with water heating efficiency ηwh 134 %, load profile XL and energy label A+.1

Last updated: Technical specifications⇄ Compare this model
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Water heating efficiency ηwh
134%1
Load profile
XL1
Official source
Energy label
A+1
Official source
Indoor sound power
56dB(A)1
Official source
ηwh, colder climate
114%1
Official source

Technical specifications

General
Load profileXL1
Registered in EPREL2025-091
Efficiency
Water heating efficiency ηwh134 %1
ηwh, colder climate114 %1
ηwh, warmer climate147 %1
Energy labelA+1
Annual electricity use, colder climate1,469 kWh1
Annual electricity use, warmer climate1,136 kWh1
Noise
Indoor sound power56 dB(A)1
Outdoor sound power63 dB(A)1
Connectivity & smart
Smart controlNo1
Off-peak hours onlyNo1

How it ranks

Water heating efficiency ηwh: better than 35% of comparable models in our database (Heat pump water heaters · Load profile XL; n = 159).

Rank 99 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 7 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 134–136 %. After each type number you can see what differs:

  • 7738340434
  • 7736503526 — Water heating efficiency ηwh: 136 %; Annual electricity use, colder climate: 1,433 kWh; Annual electricity use, warmer climate: 1,094 kWh; ηwh, colder climate: 117 %
  • 7736503527 — Water heating efficiency ηwh: 136 %; Annual electricity use, colder climate: 1,433 kWh; Annual electricity use, warmer climate: 1,094 kWh; ηwh, colder climate: 117 %
  • 7736503528 — Water heating efficiency ηwh: 136 %; Annual electricity use, colder climate: 1,433 kWh; Annual electricity use, warmer climate: 1,094 kWh; ηwh, colder climate: 117 %
  • 7736503529 — Water heating efficiency ηwh: 136 %; Annual electricity use, colder climate: 1,433 kWh; Annual electricity use, warmer climate: 1,094 kWh; ηwh, colder climate: 117 %
  • 7738340435
  • 7738500924 — Water heating efficiency ηwh: 136 %; Annual electricity use, colder climate: 1,433 kWh; Annual electricity use, warmer climate: 1,094 kWh; ηwh, colder climate: 117 %

Compare with

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Frequently asked questions

What is the water heating efficiency ηwh of the Buderus 7738340434?

The water heating efficiency ηwh of the Buderus 7738340434 is 134 %.1

Which load profile does the Buderus 7738340434 have?

The Buderus 7738340434 has load profile XL.1

Which energy label does the Buderus 7738340434 have?

The Buderus 7738340434 has energy label A+.1

What is the indoor sound power of the Buderus 7738340434?

The indoor sound power of the Buderus 7738340434 is 56 dB(A).1

Sources

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