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Heat pump water heaters · Compare

AUSTRIA EMAIL 976043 vs Bosch 7724001871

Water heating efficiency ηwh: AUSTRIA EMAIL 976043 127 %, Bosch 7724001871 134 %. Both models win equally often (4 of 8 points).

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Who wins where

  • AUSTRIA EMAIL 976043
  • Bosch 7724001871
EfficiencyNoiseConnectivity & smart

Biggest differences

Fact9760437724001871
ηwh, warmer climate133 %151 %
Annual electricity use, warmer climate764 kWh678 kWh
Water heating efficiency ηwh127 %134 %
Indoor sound power45 dB(A)47 dB(A)
Annual electricity use, colder climate947 kWh987 kWh
ηwh, colder climate108 %104 %
All specifications ↓

Score per area = position (0–100) relative to all 450 models in this category; higher is better.

AUSTRIA EMAIL976043Bosch7724001871
General
Load profileL1L2
Efficiency
Water heating efficiency ηwh127 %1134 %✓2
ηwh, colder climate108 %✓1104 %2
ηwh, warmer climate133 %1151 %✓2
Energy labelA+1A+2
Annual electricity use, colder climate947 kWh✓1987 kWh2
Annual electricity use, warmer climate764 kWh1678 kWh✓2
Noise
Indoor sound power45 dB(A)✓147 dB(A)2
Outdoor sound power46 dB(A)145 dB(A)✓2
Connectivity & smart
Smart controlYes✓1No2

Frequently asked questions

Which is better: the AUSTRIA EMAIL 976043 or the Bosch 7724001871?

Water heating efficiency ηwh: AUSTRIA EMAIL 976043 127 %, Bosch 7724001871 134 %. Both models win equally often (4 of 8 points).

What is the water heating efficiency ηwh of the AUSTRIA EMAIL 976043 and the Bosch 7724001871?

AUSTRIA EMAIL 976043: 127 %. Bosch 7724001871: 134 %.

Which is better on ηwh, warmer climate: the AUSTRIA EMAIL 976043 or the Bosch 7724001871?

Bosch 7724001871: 151 %. AUSTRIA EMAIL 976043: 133 %.

Which is better on annual electricity use, warmer climate: the AUSTRIA EMAIL 976043 or the Bosch 7724001871?

Bosch 7724001871: 678 kWh. AUSTRIA EMAIL 976043: 764 kWh.

How we collect and check this data →

Sources

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