Quieter Heat Pumps from 2026: What Germany's New Noise Rules Really Mean for Homeowners

From 1 January 2026, Germany will introduce stricter noise requirements for subsidised heat pumps only. These rules affect funding eligibility, not whether a heat pump may be installed. As a result, many homeowners are asking whether their heat pump will still quality for subsidies in 2026 — and whether they need to act now. While headlines may suggest a major disruption, the reality is far more reassuring: most modern heat pumps already meet — and often exceed — the upcoming standards.

This article explains how the new noise rules work, how they differ from EU regulations and local noise protection laws, and why heat pumps remain one of the most future-proof heating solutions for German homes.

Understanding Heat Pump Noise Regulations in Germany

Heat pump noise regulation in Germany is built on three distinct layers, each serving a different purpose:

1. EU Ecodesign Regulation (EU) No. 813/2013

Sets maximum sound power levels at the source of the device (emissions), depending on rated heat output.

2. German Funding Requirements (BEG)

Define stricter noise thresholds for systems receiving public subsidies.

3. Noise Protection Law (Immission Control)

Protects neighbours by limiting noise levels at the point of reception (e.g. bedroom windows).

The 2026 update affects funding eligibility only — not general installation legality. In short: EU rules define what manufacturers may sell, German funding rules define what qualifies for subsidies, and noise protection laws ensure neighbour comfort in everyday life.

What Will Change in 2026?

Under current rules (valid until the end of 2025), heat pumps must be 5 dB quieter than the EU Ecodesign limits to qualify for subsidies.

From 1 January 2026, this margin increases to 10 dB below the EU limit.

A reduction of 10 dB is perceived as roughly half the noise level — meaning noticeably quieter operation and improved everyday comfort for homeowners and neighbours alike.

Heat pumps that do not meet these stricter limits may still be installed but will not receive Germany government funding.

Germany Noise Limits by Heat Output Class(2025 vs 2026)

Rated heat output (n)	EU limit according to Ecodesign Regulation 813/2013	Eligible until end of 2025 (-5 dB)	Eligible from 2026 (-10 dB)
0 < n ≤ 6 kW	65 dBA	60 dBA	55 dBA
6 < n ≤ 12 kW	70 dBA	65 dBA	60 dBA
12 < n ≤ 30 kW	78 dBA	73 dBA	68 dBA
30 < n ≤ 70 kW	88 dBA	83 dBA	78 dBA

Emissions vs. Immissions: Why Neighbours Are Still Protected

The stricter funding rules do not replace Germany’s existing noise protection laws.

- Emission values measure sound directly at the heat pump.

- Immission values apply at the location where sound is perceived, such as a neighbouring property.

Installers calculate expected immission levels using distance formulas, installation geometry, and manufacturer data. In practice, professional planning ensures compliance long before installation begins.

Are Modern Heat Pumps Actually Noisy?

In practice, most modern heat pumps in Germany are not noisy by everyday standards. Noise remains one of the most common concerns among homeowners — yet it is largely outdated.

Modern heat pumps operate smoothly and continuously rather than in loud on-off cycles. Recent planning reforms have also simplified installations near property boundaries. Today, a reference value of 42 dB applies — comparable to the sound of a refrigerator.

High-quality systems perform well below this threshold. The LumenHaus SunHeater, for example, operates at just 35 dB(A) at a distance of three metres — significantly quieter than typical household background noise in everyday environments.

The Market Is Already Ready for 2026

Germany’s heat pump market has been shaped by Ecodesign rules for over a decade and by subsidy criteria for several years. As a result, compliance with future standards is already the norm.

In a recent market overview covering 44 heat pump models in the 12 kW class, not a single system failed to meet the 2026 noise requirements — including cost-efficient entry-level models.

For homeowners, this means:

- No need to rush installations out of fear

- No shortage of eligible systems

- No compromise between price, performance, and comfort

Why Heat Pumps Make Sense — Beyond Noise

Lower and More Predictable Heating Costs

Heat pumps generate multiple units of heat from a single unit of electricity. Compared with oil or gas systems, households can reduce heating costs by up to 45%, depending on insulation, usage behaviour, and electricity tariffs.

Consistent Indoor Comfort

Unlike boilers that heat in bursts, heat pumps provide steady, even warmth throughout the day — without temperature swings.

Greater Energy Independence

Combined with photovoltaic systems and battery storage, heat pumps allow households to use more of their own renewable electricity, reducing reliance on external energy markets.

Attractive Government Incentives

Germany currently offers up to 70% in subsidies, with support reaching €21,000 per household — a historically high level of funding.

Lower Carbon Emissions

Heat pumps dramatically reduce CO₂ emissions compared to fossil heating systems. When powered by renewable electricity, they operate with near-zero emissions.

Why Choose the LumenHaus SunHeater?

Technology alone does not guarantee a successful heat pump installation. System planning, integration, and long-term support are equally important. The LumenHaus SunHeater has been developed specifically for German homes and climate conditions, offering a seamless, end-to-end experience.

Key Benefits at a Glance

- All-in-One Service

Consultation, planning, installation, subsidies, and maintenance from one provider.

- Tailored System Design

In-home assessments ensure precise system sizing and optimal performance.

- Flexible Capacity Range

Models from 8 kW to 16 kW, suitable for apartments, terraced houses, and detached homes.

- Smart App Integration

Full transparency and control via the myLumenHaus App.

- Long-Term Reliability

Strict quality standards with warranties of up to 10 years.

Equally important：LumenHaus SunHeater is compliant with German subsidy requirements.

Smart Heating, Made Effortless

With myLumenHaus Smart-Eco Mode, the SunHeateraligns its operation with Germany’s dynamic electricity tariffs, optimising energy use to reduce costs while maintaining a stable and comfortable indoor climate.

When combined with a photovoltaic system, the SunHeater prioritises self-generated solar power, increasing efficiency and energy independence — seamlessly, without the need for manual adjustment. The experience is further enhanced by Lumi, LumenHaus’s intelligent home energy assistant. Through natural voice commands, homeowners can adjust their heating intuitively.

A Quieter, Smarter Future for Home Heating

The upcoming 2026 noise requirements are not a hurdle but a quality benchmark — reinforcing Germany’s commitment to high living standards and sustainable energy.

Modern heat pumps are already quiet, efficient, and future-ready. With the right technology and the right partner, homeowners can invest confidently — today and for years to come.

Wondering whether a heat pump is the right solution for your home? LumenHaus offers a tailored, no-obligation assessment.