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Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) vs Buderus WLW186i-5AR TP70

SCOP (35 °C): Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) 4.57, Buderus WLW186i-5AR TP70 4.55. The Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) is better on 8 of 14 comparable points.

Who wins where

  • Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)
  • Buderus WLW186i-5AR TP70
PerformanceEfficiencyNoiseRefrigerantConnectivity & smart
Performance: Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) 18, Buderus WLW186i-5AR TP70 18; Efficiency: Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) 27, Buderus WLW186i-5AR TP70 23; Noise: Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) 93, Buderus WLW186i-5AR TP70 86; Refrigerant: Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) 86, Buderus WLW186i-5AR TP70 86; Connectivity & smart: Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) 50, Buderus WLW186i-5AR TP70 50

Biggest differences

FactCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)WLW186i-5AR TP70
Indoor unit sound power31 dB(A)37 dB(A)
All specifications ↓

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

Technical specifications BoschCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) BuderusWLW186i-5AR TP70
General
Type (source) Air-to-water 1 Air-to-water 1
Performance
Rated output 35 °C 6.2 kW 1 6.2 kW 1
Rated output 55 °C 6.2 kW 1 6.2 kW 1
Efficiency
SCOP (35 °C) 4.57 ✓ 1 4.55 1
SCOP (55 °C) 3.5 ✓ 1 3.48 1
Seasonal efficiency ηs 35 °C 180 % ✓ 1 179.1 % 1
Seasonal efficiency ηs 55 °C 137 % ✓ 1 136 % 1
COP A7/W35 4.85 ✓ 1 4.8 1
COP A2/W35 3.92 ✓ 1 3.9 1
COP A-7/W35 2.51 ✓ 1 2.5 1
SEER (cooling) 2.48 1 2.48 1
Noise
Outdoor unit sound power 42 dB(A) 1 42 dB(A) 1
Indoor unit sound power 31 dB(A) ✓ 1 37 dB(A) 1
Refrigerant
Refrigerant R290 1 R290 1
Refrigerant charge 0.95 kg 1 0.95 kg 1
Electrical
Max. power input 3.1 kW 1 3.2 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