Heat pump water heaters · Compare

AIRTHERMIA RSJ-15/270RDB10N7-L1 vs Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071

Water heating efficiency ηwh: AIRTHERMIA RSJ-15/270RDB10N7-L1 128 %, Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071 144 %. The Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071 is better on 6 of 7 comparable points.

Last updated: + Add a model

Both models in detail

Who wins where

  • AIRTHERMIA RSJ-15/270RDB10N7-L1
  • Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071

Biggest differences

FactRSJ-15/270RDB10N7-L1AQUANEXT PLUS LINK S2 250 FS 4057071
Annual electricity use, warmer climate1,167 kWh1,009 kWh
ηwh, warmer climate144 %166 %
Water heating efficiency ηwh128 %144 %
Annual electricity use, colder climate1,614 kWh1,443 kWh
ηwh, colder climate104 %116 %
Indoor sound power51 dB(A)48 dB(A)
All specifications ↓

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

Technical specificationsAIRTHERMIARSJ-15/270RDB10N7-L1ChaffoteauxAQUANEXT PLUS LINK S2 250 FS 4057071
General
Load profileXL1XL2
Efficiency
Water heating efficiency ηwh128 %1144 %✓2
ηwh, colder climate104 %1116 %✓2
ηwh, warmer climate144 %1166 %✓2
Energy labelA+1A+2
Annual electricity use, colder climate1,614 kWh11,443 kWh✓2
Annual electricity use, warmer climate1,167 kWh11,009 kWh✓2
Noise
Indoor sound power51 dB(A)148 dB(A)✓2
Outdoor sound power54 dB(A)✓157 dB(A)2

Frequently asked questions

Which is better: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071?

Water heating efficiency ηwh: AIRTHERMIA RSJ-15/270RDB10N7-L1 128 %, Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071 144 %. The Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071 is better on 6 of 7 comparable points.

What is the water heating efficiency ηwh of the AIRTHERMIA RSJ-15/270RDB10N7-L1 and the Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071?

AIRTHERMIA RSJ-15/270RDB10N7-L1: 128 %. Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071: 144 %.

Which is better on annual electricity use, warmer climate: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071?

Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071: 1,009 kWh. AIRTHERMIA RSJ-15/270RDB10N7-L1: 1,167 kWh.

Which is better on ηwh, warmer climate: the AIRTHERMIA RSJ-15/270RDB10N7-L1 or the Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071?

Chaffoteaux AQUANEXT PLUS LINK S2 250 FS 4057071: 166 %. AIRTHERMIA RSJ-15/270RDB10N7-L1: 144 %.

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