Short read. This is a ~300-word brief based on the full analysis at Househeating Pulse. For the interactive charts, brand-level data, and source tables, open the original.
The strongest signal in the EPREL noise data is not refrigerant — it’s product family. In the 2026-06-18 live snapshot, Househeating Pulse’s EPREL/Public API extract covers 60,989 models from 777 manufacturers, with a market-wide mean declared outdoor sound power of 61.3 dB(A). But that average hides a wide spread: water-water units come in at 42.0 dB(A) on 31 models, while air-air units average 64.1 dB(A) across 21,065 models. Air-water, the biggest slice at 30,452 models, sits near the middle at 59.8 dB(A).
That distribution matters more than the refrigerant story in this corpus. The quietest 20 declarations range from 1 to 21 dB(A), and 18 of those 20 have no refrigerant recorded in the extract. Only two are tagged R290, and none are R32, so the quietest leaderboard does not support a clean refrigerant-to-noise conclusion. If you want the reproducible slice, the canonical ranking is here: https://househeating-pulse.com/guides/2026-european-heat-pump-noise-by-brand-and-refrigerant
The top of the leaderboard is also visually odd in a way data engineers will notice. Nine of the first ten models are declared at 1 dB(A), including several WAMAK entries such as BW 14 EVI and TBW 28 EVI, plus TWW 110 WHR and HTW-MKT2-V500. EPREL records declared sound power, not field sound pressure at a property line, so these values should be treated as registry data rather than an acoustic guarantee.
Brand-scale context is useful but incomplete. Daikin Europe N.V. leads the live market with 14,668 models and a 24.05% share, followed by Mitsubishi Electric Europe B.V. at 5,575 models and 9.14%. Yet the brand-share table in this snapshot reports SCOP, not average noise, so brand-level acoustic conclusions remain out of scope here.
For a reproducible workflow, start with EPREL sound-power fields, then filter by type and refrigerant, and compare against the live tables. Read the full analysis with live data at https://househeating-pulse.com/guides/2026-european-heat-pump-noise-by-brand-and-refrigerant for the model leaderboard, type aggregation, and source notes.
Househeating Pulse aggregates 60,000+ EPREL-registered heat-pump models across Europe — efficiency rankings, refrigerant trends, country-level installed prices and subsidies. Data from EPREL, Eurostat, NASA POWER. Full analysis at https://househeating-pulse.com/guides/2026-european-heat-pump-noise-by-brand-and-refrigerant.
