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Heat pump water heaters · Compare

AERMEC SWP301 vs LMNT CK06-200

Water heating efficiency ηwh: AERMEC SWP301 124 %, LMNT CK06-200 147 %. The LMNT CK06-200 is better on 7 of 7 comparable points.

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Who wins where

  • AERMEC SWP301
  • LMNT CK06-200

Biggest differences

FactSWP301CK06-200
Water heating efficiency ηwh124 %147 %
ηwh, colder climate124 %147 %
Annual electricity use, colder climate826 kWh698 kWh
Annual electricity use, warmer climate826 kWh698 kWh
Indoor sound power60 dB(A)53 dB(A)
Outdoor sound power60 dB(A)53 dB(A)
All specifications ↓

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

AERMECSWP301LMNTCK06-200
General
Load profileL1L2
Efficiency
Water heating efficiency ηwh124 %1147 %✓2
ηwh, colder climate124 %1147 %✓2
ηwh, warmer climate124 %1129 %✓2
Energy labelA+1A+2
Annual electricity use, colder climate826 kWh1698 kWh✓2
Annual electricity use, warmer climate826 kWh1698 kWh✓2
Noise
Indoor sound power60 dB(A)153 dB(A)✓2
Outdoor sound power60 dB(A)153 dB(A)✓2

Frequently asked questions

Which is better: the AERMEC SWP301 or the LMNT CK06-200?

Water heating efficiency ηwh: AERMEC SWP301 124 %, LMNT CK06-200 147 %. The LMNT CK06-200 is better on 7 of 7 comparable points.

What is the water heating efficiency ηwh of the AERMEC SWP301 and the LMNT CK06-200?

AERMEC SWP301: 124 %. LMNT CK06-200: 147 %.

Which is better on ηwh, colder climate: the AERMEC SWP301 or the LMNT CK06-200?

LMNT CK06-200: 147 %. AERMEC SWP301: 124 %.

Which is better on annual electricity use, colder climate: the AERMEC SWP301 or the LMNT CK06-200?

LMNT CK06-200: 698 kWh. AERMEC SWP301: 826 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