Househeating Pulse
EU Heat-Pump Market Intelligence

Comparison · 9 min read · Updated 2026-07-10

2026 EPREL heat-pump price vs noise by size class: 2–6 kW, 6–12 kW and 12+ kW

A data-led look at how much quieter heat pumps really cost in Europe in 2026. We compare EPREL listings across three size classes to show where noise levels, price premiums and model choice diverge most.

What EPREL says about noise and price in 2026

EPREL is useful for comparing declared outdoor sound power and listed technical fields across a large cross-section of heat pumps, and Househeating Pulse surfaces that data in the live EPREL catalog. But the research corpus supplied here does not include class medians, full class counts, listed prices, price ranges, or quieter-half versus noisier-half price premiums. The registry extracts in this corpus simply do not record those summary statistics, and no price field is present in any record.

That means several of the headline questions cannot be answered numerically from this dataset alone:

  • the median declared outdoor-unit sound power by size class is not provided in the corpus;
  • the median listed price by size class is not provided in the corpus;
  • the price premium of quieter models versus noisier models is not provided in the corpus;
  • the total number of EPREL-listed models in each size class is not provided in the corpus;
  • the full noise range in each size class cannot be established from these extracts, because each class only shows the top 15 models under selected sorts, not the whole population;
  • the full price range cannot be established, because no price field is present.

What the corpus does support is narrower but still useful: it identifies the quietest listed models surfaced for each size band, shows representative low-capacity and 12 kW-threshold records, and exposes some data-quality problems in EPREL itself. The most obvious examples are 1 dB(A), 5 dB(A) and 0 dB(A) outdoor sound power declarations, which are implausible for real outdoor units and should be treated as registration anomalies rather than buyer-ready acoustic benchmarks (top_models / EPREL Public API via Househeating Pulse catalog).

That caveat matters throughout. Anyone using the quietest heat-pump leaderboard or the platform methodology page should read these declared values as registry data first, field reality second.

2–6 kW: the apartment-edge and small-home tier

In the 2–6 kW band, the quietest record returned by the corpus is Panasonic Marketing Europe GmbH TEST_JOE20190604_2 at 6.0 kW and 5 dB(A) outdoor sound power (top_models / EPREL Public API via Househeating Pulse catalog). Because the article is constrained to the 2–6 kW class and that exact model also appears in the 6–12 kW extract at the 6.0 kW boundary, it already shows one overlap problem: class cutoffs in the probe definitions are not mutually exclusive at 6.0 kW (top_models / EPREL Public API via Househeating Pulse catalog).

Ignoring that anomalous Panasonic entry, the next quietest records are four STIEBEL ELTRON models at 5.0 kW and 32 dB(A): WPL 09 ICS classic, WPL 09 IKCS classic, TTL 4.5 IKCS, and TTL 4.5 ICS (top_models / EPREL Public API via Househeating Pulse catalog). That cluster suggests that genuinely low-noise declared values in this class, at least among the returned top records, begin around the low-30s rather than single digits.

The same quietness slice also includes Nofenta Nederland B.V. Inverter3HT at 3.0 kW and 35 dB(A), plus multiple Bosch entries at 5.0 kW and 36 dB(A) (top_models / EPREL Public API via Househeating Pulse catalog). So within the best-performing acoustic tail of this class, the spread from the plausible quiet cluster runs from 32 dB(A) to 36 dB(A) across several models (top_models / EPREL Public API via Househeating Pulse catalog).

The power-sorted extract shows how broad the underlying product mix is. At the bottom end, several 2.0 kW air-air units appear, including TCL, FDS, Visual Fan and others, many declaring 60–62 dB(A) outdoor sound power, while two CHEW BAY LIMITED air-water entries declare 0 dB(A) at 2.0 kW (top_models / EPREL Public API via Househeating Pulse catalog). Those 0 dB(A) declarations are another strong sign that buyers should cross-check the underlying model pages rather than read EPREL as a laboratory-curated acoustic database.

For apartment-edge buyers, the practical point is simple: this class contains some of the quietest plausible declarations in the corpus, but it also contains some of the noisiest small-capacity air-air products and some clearly suspect entries. Filtering the catalog for air-to-water heat pumps and then checking each model record is safer than treating raw rank order as definitive.

6–12 kW: the middle market where choice is widest

The 6–12 kW band is where the corpus shows the densest mix of brands, capacities and acoustics. That fits the editorial angle, but the supplied data still cannot prove that this is the widest class by total count, because the registry count itself is not included.

On the quietest-first view, the lowest declaration is WAMAK, s.r.o. BW 11 EVI at 12.0 kW and 1 dB(A) (top_models / EPREL Public API via Househeating Pulse catalog). Again, that is almost certainly a data-quality outlier. Excluding obvious anomalies, the next quietest records are ENIF PEGASUS S.R.L. LL-V8A1 at 11.0 kW and 32 dB(A), two CleanKlima models at 8.0 kW and 34 dB(A), then CleanKlima and Nofenta entries at 12.0 kW or 6.0 kW and 35 dB(A) (top_models / EPREL Public API via Househeating Pulse catalog).

That matters for class overlap. Yes, the 6–12 kW segment contains models that are as quiet, on paper, as the quietest plausible 2–6 kW entries. The best non-anomalous 2–6 kW models sit at 32 dB(A), and the 6–12 kW extract also includes a model at 32 dB(A) (top_models / EPREL Public API via Househeating Pulse catalog). So there is at least some overlap between small-home and mid-market units on declared sound power.

The power-sorted view paints a noisier mainstream picture. Several 6.0 kW air-water systems from Ariston, Mitsubishi Electric, Daikin and others declare 55–59 dB(A), while BDR Thermea, Atlantic and others reach 65–69 dB(A) at the same 6.0 kW threshold (top_models / EPREL Public API via Househeating Pulse catalog). For example, Mitsubishi Electric’s 6.0 kW entries sit at 55 dB(A), while one BDR Thermea 6.0 kW record declares 69 dB(A) (top_models / EPREL Public API via Househeating Pulse catalog). That is a 14 dB gap among models shown at the same nominal minimum capacity (top_models / EPREL Public API via Househeating Pulse catalog).

For semi-detached buyers, this is the class where acoustic comparison likely pays off most. There are enough manufacturers in the mix — visible through the manufacturer index and individual brand pages such as Mitsubishi Electric Europe B.V. and Daikin Europe N.V. — that noise does not appear tied to one single product archetype.

12+ kW: bigger systems, higher noise, and whether the premium is real

The 12+ kW class is where the article brief points to a clearer noise penalty and narrower choice. The first part is partly visible; the second cannot be confirmed numerically because total model count is not in the corpus.

The quietest-first extract is dominated by highly implausible 1 dB(A) declarations from WAMAK and one Newntide record across capacities from 12.0 kW up to 69.0 kW (top_models / EPREL Public API via Househeating Pulse catalog). That concentration is too unusual to use at face value for market-wide acoustic interpretation.

The power-sorted extract is more credible. At the 12.0 kW threshold, many Mitsubishi Electric entries cluster at 60 dB(A), Ariston sits at 62 dB(A), Advantix and ReVis reach 65–66 dB(A), Eurofred posts 68 dB(A), and Rossato reaches 69 dB(A) (top_models / EPREL Public API via Househeating Pulse catalog). Compared with the credible quiet cluster in smaller classes, the 12+ kW segment does look structurally louder.

Two overlaps are clear from the supplied records:

  • some 6–12 kW models are as quiet as plausible quiet 2–6 kW models, both reaching 32 dB(A) in the extracts (top_models / EPREL Public API via Househeating Pulse catalog);
  • by contrast, the more credible 12+ kW entries at the capacity threshold begin around 60 dB(A) in the power-sorted sample, well above those low-30s quiet-tail records (top_models / EPREL Public API via Househeating Pulse catalog).

What cannot be tested here is the “premium is real” question on price. No listed price field appears anywhere in the corpus, so the registry extract supplied for this article does not support any euro-denominated comparison.

Where the quietest models sit on the price curve

The short answer is that the corpus does not say. There is no price field in any of the supplied probes, so it is impossible to state:

  • median price by class,
  • cheapest or most expensive model by class,
  • quieter-half versus noisier-half price premium,
  • whether 12+ kW models are priced below the median of smaller classes.

That is a hard dataset limit, not a missing calculation. If readers need economics rather than acoustics, the right next step is the payback calculator, the sizing calculator, and national support pages in the subsidy index. For registry context, the official source remains the EU’s EPREL portal.

What the numbers mean for apartment-edge, semi-detached and detached-house buyers

Three buyer takeaways survive the data limitations.

First, apartment-edge buyers shopping in the 2–6 kW bracket should treat ultra-low declarations with caution. The corpus includes 0 dB(A) and 5 dB(A) entries in this size territory, but the more believable quiet cluster is 32–36 dB(A) among several air-to-water models (top_models / EPREL Public API via Househeating Pulse catalog). That makes neighbour-sensitive installs a model-level screening exercise, not a class-wide assumption. The HVAC glossary is useful if a seller mixes sound pressure and sound power terminology.

Second, semi-detached buyers in the 6–12 kW band appear to have the broadest visible acoustic spread in the supplied records, from anomalous 1 dB(A) claims to credible mainstream declarations in the mid-30s up to 69 dB(A) (top_models / EPREL Public API via Househeating Pulse catalog). Since several 6.0 kW entries differ by 14 dB in declared outdoor sound power, installers should not assume similar nominal capacity means similar acoustic impact (top_models / EPREL Public API via Househeating Pulse catalog).

Third, detached-house buyers moving into 12+ kW should expect the credible threshold models in this extract to sit around 60–69 dB(A) rather than the low-30s seen in the quiet tail of smaller classes (top_models / EPREL Public API via Househeating Pulse catalog). That does not prove every large system is loud, but it does support the article’s central direction: as capacity rises, the apparent acoustic penalty becomes more visible, while the corpus does not show many plausible low-noise threshold models in the 12+ kW band (top_models / EPREL Public API via Househeating Pulse catalog).

For broader market context beyond this narrow slice, the market index, leaderboards hub, and the official EU energy labelling framework are the relevant next references.

Sources

  • EPREL Public API via Househeating Pulse catalog — snapshot 2026-07-10; top_models, sort_by=noise_asc, power_kw_min=2, power_kw_max=6
  • EPREL Public API via Househeating Pulse catalog — snapshot 2026-07-10; top_models, sort_by=noise_asc, power_kw_min=6, power_kw_max=12
  • EPREL Public API via Househeating Pulse catalog — snapshot 2026-07-10; top_models, sort_by=noise_asc, power_kw_min=12
  • EPREL Public API via Househeating Pulse catalog — snapshot 2026-07-10; top_models, sort_by=power_asc, power_kw_min=2, power_kw_max=6
  • EPREL Public API via Househeating Pulse catalog — snapshot 2026-07-10; top_models, sort_by=power_asc, power_kw_min=6, power_kw_max=12
  • EPREL Public API via Househeating Pulse catalog — snapshot 2026-07-10; top_models, sort_by=power_asc, power_kw_min=12

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