Heat pump water heaters · MT

Oekoboiler ZG 02-05 350l

Oekoboiler ZG 02-05 350l
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The Oekoboiler ZG 02-05 350l is a heat pump water heater with water heating efficiency ηwh 181 %, load profile XXL and energy label A+.1

Key figures

Water heating efficiency ηwh
181%1
Load profile
XXL1
Official source
Energy label
A+1
Official source
Indoor sound power
50dB(A)1
Official source
ηwh, colder climate
168%1
Official source

Technical specifications

General
Load profileXXL1
Registered in EPREL2026-071
Efficiency
Water heating efficiency ηwh181 %1
ηwh, colder climate168 %1
ηwh, warmer climate210 %1
Energy labelA+1
Annual electricity use, colder climate1,282 kWh1
Annual electricity use, warmer climate1,025 kWh1
Noise
Indoor sound power50 dB(A)1
Connectivity & smart
Off-peak hours onlyNo1

Variants

This model belongs to a series of 6 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 181–185 %. After each type number you can see what differs:

  • ZG 02-05 350l
  • 02-05 350l
  • 02-05 400l — Water heating efficiency ηwh: 185 %; Annual electricity use, colder climate: 1,267 kWh; Annual electricity use, warmer climate: 1,014 kWh; ηwh, colder climate: 170 %
  • 02-05 450l — Annual electricity use, colder climate: 1,291 kWh; Annual electricity use, warmer climate: 1,033 kWh; ηwh, colder climate: 167 %; ηwh, warmer climate: 209 %
  • ZG 02-05 400l — Water heating efficiency ηwh: 185 %; Annual electricity use, colder climate: 1,267 kWh; Annual electricity use, warmer climate: 1,014 kWh; ηwh, colder climate: 170 %
  • ZG 02-05 450l — Annual electricity use, colder climate: 1,291 kWh; Annual electricity use, warmer climate: 1,033 kWh; ηwh, colder climate: 167 %; ηwh, warmer climate: 209 %

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Frequently asked questions

What is the water heating efficiency ηwh of the Oekoboiler ZG 02-05 350l?

The water heating efficiency ηwh of the Oekoboiler ZG 02-05 350l is 181 %.1

Which load profile does the Oekoboiler ZG 02-05 350l have?

The Oekoboiler ZG 02-05 350l has load profile XXL.1

Which energy label does the Oekoboiler ZG 02-05 350l have?

The Oekoboiler ZG 02-05 350l has energy label A+.1

What is the indoor sound power of the Oekoboiler ZG 02-05 350l?

The indoor sound power of the Oekoboiler ZG 02-05 350l is 50 dB(A).1

Sources

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