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Weishaupt WEB 13/20-A-RMD-A vs AUX ACHP-H14/4R2HA-M

SCOP (35 °C): Weishaupt WEB 13/20-A-RMD-A 4.89, AUX ACHP-H14/4R2HA-M 4.72. The Weishaupt WEB 13/20-A-RMD-A is better on 9 of 14 comparable points.

Who wins where

  • Weishaupt WEB 13/20-A-RMD-A
  • AUX ACHP-H14/4R2HA-M
PerformanceEfficiencyNoiseRefrigerantConnectivity & smart
Performance: Weishaupt WEB 13/20-A-RMD-A 63, AUX ACHP-H14/4R2HA-M 78; Efficiency: Weishaupt WEB 13/20-A-RMD-A 68, AUX ACHP-H14/4R2HA-M 51; Noise: Weishaupt WEB 13/20-A-RMD-A 87, AUX ACHP-H14/4R2HA-M 30; Refrigerant: Weishaupt WEB 13/20-A-RMD-A 54, AUX ACHP-H14/4R2HA-M 72; Connectivity & smart: Weishaupt WEB 13/20-A-RMD-A 50, AUX ACHP-H14/4R2HA-M 50

Biggest differences

FactWEB 13/20-A-RMD-AACHP-H14/4R2HA-M
Heating capacity (A7/W35)5.79 kW14 kW
Refrigerant charge2.15 kg1.35 kg
Outdoor unit sound power45 dB(A)59 dB(A)
COP A7/W355.414.8
Rated output 55 °C14.84 kW14 kW
Seasonal efficiency ηs 55 °C157 %150 %
All specifications ↓

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

Technical specifications WeishauptWEB 13/20-A-RMD-A AUXACHP-H14/4R2HA-M
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) 5.79 kW 2 14 kW ✓ 3
Rated output 35 °C 14.58 kW ✓ 1 14.5 kW 1
Rated output 55 °C 14.84 kW ✓ 1 14 kW 1
Min. outdoor temperature -22 °C 2 –
Efficiency
SCOP (35 °C) 4.89 ✓ 1 4.72 1
SCOP (55 °C) 4 ✓ 1 3.83 1
Seasonal efficiency ηs 35 °C 193 % ✓ 1 186 % 1
Seasonal efficiency ηs 55 °C 157 % ✓ 1 150 % 1
Energy label 35 °C A, , , 2 A, , , 3
Energy label 55 °C A, , , 2 A, , , 3
COP A7/W35 5.41 ✓ 1 4.8 1
COP A2/W35 4.41 1 4.52 ✓ 1
COP A-7/W35 3.11 ✓ 1 3 1
Noise
Outdoor unit sound power 45 dB(A) ✓ 1 59 dB(A) 1
Refrigerant
Refrigerant R290 1 R290 1
Refrigerant GWP 3 2 3 3
Refrigerant charge 2.15 kg 1 1.35 kg ✓ 1
Electrical
Max. power input 8.61 kW 1 10 kW 1
Connectivity & smart
SG Ready Yes 1 Yes 1

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026
  2. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
  3. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026