Stiebel Eltron Heat Pump Review: The Quietest Heat Pump You Can Buy
Stiebel Eltron may not be a household name in the UK, but in the heating industry this German manufacturer is held in the highest regard. Founded in 1924, family-owned, producing heat pumps since the 1970s — Stiebel Eltron has one of the longest track records in the business. Their WPL range achieves something no other brand quite matches: operation at just 32dB, quieter than ambient background noise in most residential areas. If noise is your primary concern — terraced houses, close neighbours, bedroom-facing installations — Stiebel Eltron eliminates the issue entirely.
This review covers the WPL range for UK homeowners. See our brand comparison guide for context.
Need whisper-quiet heating?
Calculate Your Heat Pump CostFree, personalised estimates in under 2 minutes.
Stiebel Eltron WPL Range
The compact WPL-A 05/07 (5–7kW) suits smaller homes. The WPL 15/25 (10–20kW) handles larger properties. All use R290 refrigerant. Build quality is exceptional — thick acoustic insulation, stainless steel baseplates, oversized heat exchangers, and anti-vibration compressor mounting.
Quiet Operation: A Key Differentiator
The WPL-A at 32dB is quieter than most ambient background noise in a residential area. This is achieved through advanced anti-vibration mounting, thick acoustic insulation, aerodynamic fan blades, and inverter technology for low-speed running.
Efficiency and Performance
Upper-tier efficiency, competitive with Bosch and Panasonic, close to Nibe and Viessmann. Annual running costs of £680–£980 for a three-bedroom semi. Combine with solar panels for further savings.
Installation Costs
| Model | Installed Cost | After BUS Grant |
|---|---|---|
| WPL-A 05/07 (5–7kW) | £10,000–£13,000 | £2,500–£5,500 |
| WPL 15 (10–12kW) | £12,000–£16,000 | £4,500–£8,500 |
| WPL 25 (16–20kW) | £14,000–£18,000 | £6,500–£10,500 |
Premium-priced alongside Viessmann and Nibe. The BUS grant brings costs into a more accessible range.
Pros and Cons
Advantages
- Quietest heat pump available — 32dB in quiet mode
- Exceptional build quality — German manufactured since 1924
- Strong upper-tier efficiency
- 50+ years of heat pump manufacturing experience
- R290 refrigerant — future-proof
- Smart Grid Ready for solar PV self-consumption
Disadvantages
- Premium pricing
- Small UK installer network — finding accredited installers can be difficult
- Low brand awareness among UK homeowners
- ISG control platform is functional but not the most polished
For broader installer availability, consider Worcester Bosch. For budget options, Grant or Panasonic. Full comparison in our manufacturer directory.
Frequently Asked Questions
Are Stiebel Eltron heat pumps any good?
Among the best-built heat pumps available. Excellent efficiency, outstanding noise performance, and over 50 years of manufacturing experience.
How much does a Stiebel Eltron cost?
Fully installed: £10,000–£18,000. After BUS grant: £2,500–£10,500.
How quiet is a Stiebel Eltron heat pump?
The compact WPL-A achieves 32dB — the quietest on the market. Quieter than typical residential background noise.
Is Stiebel Eltron better than Viessmann?
Slight edge in noise. Viessmann has more sophisticated smart controls and better solar integration. Efficiency is comparable. Choice often depends on installer availability.
Where are they made?
Germany. Family-owned since 1924, producing heat pumps since the 1970s.
Can I find an installer near me?
Smaller network than mainstream brands. Urban areas and southern England have better coverage. Check their website for accredited installers.
Stiebel Eltron and Noise-Free Renewable Heating
For homeowners where noise is the deciding factor, Stiebel Eltron eliminates the concern entirely. Combined with the BUS grant and solar energy to offset electricity costs, Stiebel Eltron offers a premium pathway to silent, efficient, low-carbon home heating that will serve your property for decades.