Heat pump water heaters · Compare

Airwell TFHM-150H-04M25 vs AUSTRIA EMAIL 986137

Water heating efficiency ηwh: Airwell TFHM-150H-04M25 122 %, AUSTRIA EMAIL 986137 132 %. The AUSTRIA EMAIL 986137 is better on 6 of 8 comparable points.

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Both models in detail

Who wins where

  • Airwell TFHM-150H-04M25
  • AUSTRIA EMAIL 986137
EfficiencyNoiseConnectivity & smart
Efficiency: Airwell TFHM-150H-04M25 38, AUSTRIA EMAIL 986137 56; Noise: Airwell TFHM-150H-04M25 32, AUSTRIA EMAIL 986137 53; Connectivity & smart: Airwell TFHM-150H-04M25 59, AUSTRIA EMAIL 986137 59

Biggest differences

FactTFHM-150H-04M25986137
Indoor sound power56 dB(A)47 dB(A)
ηwh, colder climate103 %115 %
Annual electricity use, colder climate997 kWh894 kWh
Water heating efficiency ηwh122 %132 %
ηwh, warmer climate137 %147 %
Annual electricity use, warmer climate746 kWh697 kWh
All specifications ↓

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

Technical specificationsAirwellTFHM-150H-04M25AUSTRIA EMAIL986137
General
Load profileL1L2
Efficiency
Water heating efficiency ηwh122 %1132 %✓2
ηwh, colder climate103 %1115 %✓2
ηwh, warmer climate137 %1147 %✓2
Energy labelA+1A+2
Annual electricity use, colder climate997 kWh1894 kWh✓2
Annual electricity use, warmer climate746 kWh1697 kWh✓2
Noise
Indoor sound power56 dB(A)147 dB(A)✓2
Outdoor sound power56 dB(A)✓158 dB(A)2
Connectivity & smart
Smart controlYes1Yes2

Frequently asked questions

Which is better: the Airwell TFHM-150H-04M25 or the AUSTRIA EMAIL 986137?

Water heating efficiency ηwh: Airwell TFHM-150H-04M25 122 %, AUSTRIA EMAIL 986137 132 %. The AUSTRIA EMAIL 986137 is better on 6 of 8 comparable points.

What is the water heating efficiency ηwh of the Airwell TFHM-150H-04M25 and the AUSTRIA EMAIL 986137?

Airwell TFHM-150H-04M25: 122 %. AUSTRIA EMAIL 986137: 132 %.

Which is better on indoor sound power: the Airwell TFHM-150H-04M25 or the AUSTRIA EMAIL 986137?

AUSTRIA EMAIL 986137: 47 dB(A). Airwell TFHM-150H-04M25: 56 dB(A).

Which is better on ηwh, colder climate: the Airwell TFHM-150H-04M25 or the AUSTRIA EMAIL 986137?

AUSTRIA EMAIL 986137: 115 %. Airwell TFHM-150H-04M25: 103 %.

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