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Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) vs Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]

SCOP (35 °C): Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) 5.04, Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8] 4.46. The Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) is better on 9 of 14 comparable points.

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Who wins where

  • Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi)
  • Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]
PerformanceEfficiencyNoiseRefrigerantConnectivity & smart

Biggest differences

FactCompress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi)AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]
Indoor unit sound power34 dB(A)46 dB(A)
Refrigerant charge1.37 kg1.83 kg
Rated output 55 °C12.5 kW16 kW
Outdoor unit sound power51 dB(A)65 dB(A)
Seasonal efficiency ηs 55 °C152 %129 %
SCOP (55 °C)3.883.3
All specifications ↓

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

BoschCompress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi)PanasonicAQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]
Grants & market
Boiler Upgrade Scheme£7,500 – £9,000£7,500 – £9,000
General
Type (source)Air-to-water1Air-to-water1
Performance
Rated output 35 °C12.5 kW113 kW✓1
Rated output 55 °C12.5 kW116 kW✓1
Efficiency
SCOP (35 °C)5.04✓14.461
SCOP (55 °C)3.88✓13.31
Seasonal efficiency ηs 35 °C199 %✓1176 %1
Seasonal efficiency ηs 55 °C152 %✓1129 %1
COP A7/W354.46✓14.381
COP A2/W353.7714.29✓1
COP A-7/W352.99✓12.891
SEER (cooling)4.4114.53✓1
Noise
Outdoor unit sound power51 dB(A)✓165 dB(A)1
Indoor unit sound power34 dB(A)✓146 dB(A)1
Refrigerant
RefrigerantR2901R321
Refrigerant charge1.37 kg✓11.83 kg1
Electrical
Max. power input6.2 kW111.09 kW1
Connectivity & smart
SG ReadyYes1Yes1

Frequently asked questions

Which is better: the Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) or the Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]?

SCOP (35 °C): Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) 5.04, Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8] 4.46. The Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) is better on 9 of 14 comparable points.

What is the SCOP (35 °C) of the Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) and the Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]?

Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi): 5.04. Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]: 4.46.

Which is better on indoor unit sound power: the Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) or the Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]?

Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi): 34 dB(A). Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]: 46 dB(A).

Which is better on refrigerant charge: the Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi) or the Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]?

Bosch Compress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi): 1.37 kg. Panasonic AQUAREA [WH-UXZ16KE8 + WH-SXC16K9E8]: 1.83 kg.

How we collect and check this data →

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026