Heat pump water heaters · Compare

AUSTRIA EMAIL 986093 vs Indol W381A+

Water heating efficiency ηwh: AUSTRIA EMAIL 986093 130 %, Indol W381A+ 154 %. The Indol W381A+ is better on 7 of 8 comparable points.

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Both models in detail

Who wins where

  • AUSTRIA EMAIL 986093
  • Indol W381A+
EfficiencyNoiseConnectivity & smart
Efficiency: AUSTRIA EMAIL 986093 36, Indol W381A+ 61; Noise: AUSTRIA EMAIL 986093 42, Indol W381A+ 87; Connectivity & smart: AUSTRIA EMAIL 986093 59, Indol W381A+ 59

Biggest differences

Fact986093W381A+
ηwh, colder climate108 %154 %
Annual electricity use, colder climate1,546 kWh1,087 kWh
Outdoor sound power56 dB(A)45 dB(A)
Water heating efficiency ηwh130 %154 %
Indoor sound power53 dB(A)45 dB(A)
ηwh, warmer climate148 %154 %
All specifications ↓

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

Technical specificationsAUSTRIA EMAIL986093IndolW381A+
General
Load profileXL1XL2
Efficiency
Water heating efficiency ηwh130 %1154 %✓2
ηwh, colder climate108 %1154 %✓2
ηwh, warmer climate148 %1154 %✓2
Energy labelA+1A+2
Annual electricity use, colder climate1,546 kWh11,087 kWh✓2
Annual electricity use, warmer climate1,128 kWh11,087 kWh✓2
Noise
Indoor sound power53 dB(A)145 dB(A)✓2
Outdoor sound power56 dB(A)145 dB(A)✓2
Connectivity & smart
Smart controlYes1Yes2

Frequently asked questions

Which is better: the AUSTRIA EMAIL 986093 or the Indol W381A+?

Water heating efficiency ηwh: AUSTRIA EMAIL 986093 130 %, Indol W381A+ 154 %. The Indol W381A+ is better on 7 of 8 comparable points.

What is the water heating efficiency ηwh of the AUSTRIA EMAIL 986093 and the Indol W381A+?

AUSTRIA EMAIL 986093: 130 %. Indol W381A+: 154 %.

Which is better on ηwh, colder climate: the AUSTRIA EMAIL 986093 or the Indol W381A+?

Indol W381A+: 154 %. AUSTRIA EMAIL 986093: 108 %.

Which is better on annual electricity use, colder climate: the AUSTRIA EMAIL 986093 or the Indol W381A+?

Indol W381A+: 1,087 kWh. AUSTRIA EMAIL 986093: 1,546 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