Quietest 8–10 kW heat pumps
176 models in our database meet this; below the first 25 in order.
Criteria:
- Rated output 35 °C from 8 up to 10 kW
- Sorted by: Outdoor unit sound power (lowest first)
Only models for which these figures are known. This is a ranking by data, not a test or recommendation; the source of every value is on the product page.
| # | Model1,2 | Outdoor unit sound power | Rated output 35 °C | SCOP (35 °C) | Refrigerant |
|---|---|---|---|---|---|
| 1 | Bosch CS7000iAW 13 IRB-T | 37 dB(A) | 9.97 kW | 4.52 | R410A |
| 2 | Bosch CS7000iAW 13 IRMB-T | 37 dB(A) | 9.97 kW | 4.32 | R410A |
| 3 | Buderus Logatherm WLW196i-11 IRB | 37 dB(A) | 9.97 kW | 4.52 | R410A |
| 4 | Buderus Logatherm WLW196i-11 IRTP120 | 37 dB(A) | 9.97 kW | 4.32 | R410A |
| 5 | Weishaupt WAB 14-B-RMD-A | 41 dB(A) | 9.8 kW | 4.94 | R290 |
| 6 | STIEBEL ELTRON WPL-A 07.2 Plus HK 230 | 43 dB(A) | 8.15 kW | 5.09 | R290 |
| 7 | STIEBEL ELTRON WPL-A 07.2 W Plus HK 230 | 43 dB(A) | 8.15 kW | 5.09 | R290 |
| 8 | Tecalor TTL 7.1 ACS comfort | 43 dB(A) | 8.15 kW | 5.09 | R290 |
| 9 | Tecalor TTL 7.1 W ACS comfort | 43 dB(A) | 8.15 kW | 5.09 | R290 |
| 10 | Weishaupt WEB 7/10-A-RME-A | 43 dB(A) | 8.15 kW | 5.09 | R290 |
| 11 | M-TEC AHPA412 | 44 dB(A) | 9.4 kW | 5.25 | R290 |
| 12 | STIEBEL ELTRON WPL 17 IKCS classic | 44 dB(A) | 9.2 kW | 4.11 | R410A |
| 13 | Tecalor TTL 8.5 IKCS | 44 dB(A) | 9.2 kW | 4.11 | R410A |
| 14 | STIEBEL ELTRON WPL-A 07 HK 230 Premium | 47 dB(A) | 8.1 kW | 4.88 | R454C |
| 15 | Tecalor TTL 7.6 ACS | 47 dB(A) | 8.1 kW | 4.88 | R454C |
| 16 | Bosch CS3800iAW 7 O-S-H | 48 dB(A) | 8 kW | 4.75 | R290 |
| 17 | Bosch CS3800iAW 7 OE-S | 48 dB(A) | 8 kW | 4.96 | R290 |
| 18 | Bosch CSH3800iAW 7 | 48 dB(A) | 8 kW | 4.88 | R290 |
| 19 | Buderus WLW-7 MBB A H | 48 dB(A) | 8 kW | 4.75 | R290 |
| 20 | Buderus WLW176i.2-7 MBB AR E | 48 dB(A) | 8 kW | 4.96 | R290 |
| 21 | Tecalor TTL 8.5 ICS | 48 dB(A) | 9 kW | 4.24 | R410A |
| 22 | Brötje BLW Eco-KP 9.2 | 49 dB(A) | 8 kW | 5.2 | R290 |
| 23 | Remeha Confida MB 400-9 | 49 dB(A) | 8 kW | 5.2 | R290 |
| 24 | Viessmann IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.10-230-V001 | 49 dB(A) | 9.8 kW | 5.01 | R290 |
| 25 | Viessmann IDU-A AWMIW.A1.19-V052 / ODU 250-A AWMOF-251.A1.10-400-V001 | 49 dB(A) | 9.8 kW | 5.27 | R290 |
More selections
- Quietest 4–6 kW heat pumps
- Most efficient 4–6 kW heat pumps
- Quietest 6–8 kW heat pumps
- Most efficient 6–8 kW heat pumps
- Most efficient 8–10 kW heat pumps
- Quietest 10–14 kW heat pumps
- Most efficient 10–14 kW heat pumps
- Heat pumps with R290 (propane)
- Most efficient heat pumps for radiators (55 °C)
- Air-to-water heat pumps
- Ground-source heat pumps (brine-to-water)
- Water-to-water heat pumps (groundwater)
- Hybrid heat pumps (with a gas boiler)
Sources
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026