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REMKO WKM 170 vs STIEBEL ELTRON WPL-A 13 HK 400 Premium

SCOP (35 °C): REMKO WKM 170 5.17, STIEBEL ELTRON WPL-A 13 HK 400 Premium 4.35. The REMKO WKM 170 is better on 9 of 14 comparable points.

Who wins where

  • REMKO WKM 170
  • STIEBEL ELTRON WPL-A 13 HK 400 Premium
PerformanceEfficiencyNoiseRefrigerantConnectivity & smartGrants & market
Performance: REMKO WKM 170 71, STIEBEL ELTRON WPL-A 13 HK 400 Premium 77; Efficiency: REMKO WKM 170 63, STIEBEL ELTRON WPL-A 13 HK 400 Premium 26; Noise: REMKO WKM 170 20, STIEBEL ELTRON WPL-A 13 HK 400 Premium 48; Refrigerant: REMKO WKM 170 32, STIEBEL ELTRON WPL-A 13 HK 400 Premium 18; Connectivity & smart: REMKO WKM 170 50, STIEBEL ELTRON WPL-A 13 HK 400 Premium 50; Grants & market: REMKO WKM 170 48, STIEBEL ELTRON WPL-A 13 HK 400 Premium 72

Biggest differences

FactWKM 170WPL-A 13 HK 400 Premium
Refrigerant charge2.55 kg5 kg
Seasonal efficiency ηs 35 °C204 %171 %
SCOP (35 °C)5.174.35
Rated output 55 °C12.9 kW14.8 kW
ISDE grant (NL)3,475 €3,950 €
Outdoor unit sound power62.1 dB(A)55 dB(A)
All specifications ↓

Score per area = position (0–100) relative to all 1350 models in this category; higher is better.

Technical specifications REMKOWKM 170 STIEBEL ELTRONWPL-A 13 HK 400 Premium
Grants & market
SEAI Heat Pump System Grant €14,500€14,500
General
Type (source) Air-to-water 1 Air-to-water 1
Performance
Heating capacity (A7/W35) – 8.24 kW 2
Rated output 35 °C 13.96 kW 1 14 kW ✓ 1
Rated output 55 °C 12.9 kW 1 14.8 kW ✓ 1
Efficiency
SCOP (35 °C) 5.17 ✓ 1 4.35 1
SCOP (55 °C) 3.65 ✓ 1 3.55 1
Seasonal efficiency ηs 35 °C 204 % ✓ 1 171 % 1
Seasonal efficiency ηs 55 °C 143 % ✓ 1 139 % 1
Energy label 35 °C – A, , 2
Energy label 55 °C – A, , 2
COP A7/W35 5.06 ✓ 1 4.61 1
COP A2/W35 3.84 ✓ 1 3.82 1
COP A-7/W35 3.34 ✓ 1 3 1
Noise
Outdoor unit sound power 62.1 dB(A) 1 55 dB(A) ✓ 1
Refrigerant
Refrigerant R32 1 R452B 1
Refrigerant GWP 675 ✓ 3 698 2
Refrigerant charge 2.55 kg ✓ 1 5 kg 1
Electrical
Max. power input 5 kW 1 7.1 kW 1
Connectivity & smart
SG Ready Yes 1 Yes 1
Grants & market
ISDE grant (NL) 3,475 € 3 3,950 € ✓ 3

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 28 Sept 2026
  2. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
  3. ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · accessed 28 Sept 2026