Heat pump water heaters · Compare

AERMEC SWP301 vs Gree GWHD NK6RO+SXTD200LCJW/A-K

Water heating efficiency ηwh: AERMEC SWP301 124 %, Gree GWHD NK6RO+SXTD200LCJW/A-K 115 %. The AERMEC SWP301 is better on 4 of 7 comparable points.

Last updated: + Add a model

Both models in detail

Who wins where

  • AERMEC SWP301
  • Gree GWHD NK6RO+SXTD200LCJW/A-K

Biggest differences

FactSWP301GWHD NK6RO+SXTD200LCJW/A-K
ηwh, colder climate124 %83 %
Annual electricity use, colder climate826 kWh1,231 kWh
Annual electricity use, warmer climate826 kWh706 kWh
ηwh, warmer climate124 %145 %
Indoor sound power60 dB(A)55 dB(A)
Water heating efficiency ηwh124 %115 %
All specifications ↓

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

Technical specificationsAERMECSWP301GreeGWHD NK6RO+SXTD200LCJW/A-K
General
Load profileL1L2
Efficiency
Water heating efficiency ηwh124 %✓1115 %2
ηwh, colder climate124 %✓183 %2
ηwh, warmer climate124 %1145 %✓2
Energy labelA+1A+2
Annual electricity use, colder climate826 kWh✓11,231 kWh2
Annual electricity use, warmer climate826 kWh1706 kWh✓2
Noise
Indoor sound power60 dB(A)155 dB(A)✓2
Outdoor sound power60 dB(A)✓163 dB(A)2

Frequently asked questions

Which is better: the AERMEC SWP301 or the Gree GWHD NK6RO+SXTD200LCJW/A-K?

Water heating efficiency ηwh: AERMEC SWP301 124 %, Gree GWHD NK6RO+SXTD200LCJW/A-K 115 %. The AERMEC SWP301 is better on 4 of 7 comparable points.

What is the water heating efficiency ηwh of the AERMEC SWP301 and the Gree GWHD NK6RO+SXTD200LCJW/A-K?

AERMEC SWP301: 124 %. Gree GWHD NK6RO+SXTD200LCJW/A-K: 115 %.

Which is better on ηwh, colder climate: the AERMEC SWP301 or the Gree GWHD NK6RO+SXTD200LCJW/A-K?

AERMEC SWP301: 124 %. Gree GWHD NK6RO+SXTD200LCJW/A-K: 83 %.

Which is better on annual electricity use, colder climate: the AERMEC SWP301 or the Gree GWHD NK6RO+SXTD200LCJW/A-K?

AERMEC SWP301: 826 kWh. Gree GWHD NK6RO+SXTD200LCJW/A-K: 1,231 kWh.

How we collect and check this data →

Sources

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