Heat pumps
Efficient heating — free from oil and gas.
We focus on the two solutions that fit best in most cases: air-to-water heat pumps and heat-pump boilers — both from Midea. Combined with your photovoltaic system for maximum self-consumption.
So arbeiten wir
From oil boiler to heat pump — structured
On-site analysis
We assess the building envelope, radiators, hot-water demand and available outdoor space. From that we derive the optimal sizing.
Incentive & planning
We handle the cantonal incentive application, the hydraulic detail planning and alignment with the building energy certificate.
Installation
Removal of the old heating, mounting of the new heat pump, hydraulic and electrical connection, commissioning and balancing. 3 – 5 days on site.
Service & monitoring
Annual maintenance, remote monitoring of efficiency (SCOP), optimisation of runtimes in combination with your PV system.
Anwendungen
Air-to-water and heat-pump boiler — the two paths
Why not ground-source? Borehole drilling is expensive, bureaucratic and increasingly restricted in most Swiss zones. Modern air-to-water heat pumps now reach nearly the same efficiency — at a fraction of the overhead.
Air-to-water (small)
6 – 20 kW
The standard for single-family homes — new builds and retrofits. Monobloc outdoor unit, no borehole, usually operational in 3 – 5 days. Standard model: Midea MHC-V12WD2RN7 with R290 refrigerant.
- R290 refrigerant — natural, low-GWP
- Monobloc 400V/3-phase, all-in-one outdoor
- SCOP 3.5 – 4.5 in Swiss climate zones
Air-to-water (large)
20 – 60 kW
Larger air-to-water systems — often as a cascade of two units — for multi-family homes, small commercial operations and housing estates.
- Cascade operation for part-load efficiency
- Acoustic report incl. cantonal requirements
- Integration with ZEV PV concepts
Heat-pump boiler
280 litres
Replacement for the electric boiler: Midea RSJ-23/300RDN7-L2 with integrated 280 L tank and R290 refrigerant produces hot water with up to 70 % less electricity.
- 2.5 kW dedicated DHW heat-pump boiler
- Simple 1:1 replacement, often in a day
- Top candidate for PV self-consumption
Häufige Fragen
Heat pumps — your most common questions
Why doesn't Bergler install ground-source heat pumps?
Plainly: because air-to-water is the more pragmatic tool in most cases. Borehole drilling quickly adds CHF 20,000 – 40,000 in extra cost, requires permits and is now restricted in many Swiss zones. Modern air-to-water heat pumps reach SCOP 3.5 – 4.5 — the efficiency edge of ground-source rarely pays off any more. We build what calculates most honestly for you.
Does a heat pump work with radiators?
Yes — the flow temperature is what matters. Modern air-to-water heat pumps reach up to 65 °C. In poorly insulated homes we check before the quote whether your existing radiators deliver enough heat at lower flow temperature. If needed we swap individual radiators.
How high is the incentive?
Varies significantly by canton. Typical for an air-to-water heat pump replacing an oil boiler: CHF 3,500 – 8,000. Plus federal tax deduction (energy-efficiency retrofit) and municipal contributions. We handle all applications.
What does a heat pump cost to run?
For a typical single-family home (15,000 kWh heat demand, SCOP 4): about 3,750 kWh of electricity per year — at current tariffs around CHF 1,100. When a PV system runs at the same time: often another 30 – 50 % cheaper through self-consumption.
How well does a heat pump fit with PV and battery?
Excellently. In summer the heat-pump boiler runs almost entirely on solar power. In winter the heating heat pump uses the solar surplus during the day. With a battery you can catch evening peaks. Typical Bergler setup: PV + battery + air-to-water HP as a full system with a single control.
How loud is an air-to-water heat pump?
Modern inverter models reach 30 – 45 dB(A) at the outdoor unit — quieter than a chest freezer. With correct placement you hear nothing inside. We check compliance with cantonal noise regulations before the quote.
Which manufacturer does Bergler use?
Our heat pumps and heat-pump boilers come from Midea — one of the world's largest HVAC and heat-pump manufacturers. The units deliver a very strong price-performance ratio at Tier-1 SCOP values, and service coverage in Switzerland is solid.
Your energy project still lives in your head?
We'd love to make it real with you. No hesitation needed — free initial consultation, transparent quote. We reach out personally and work out your offer together with you.