COP 3,0–4,5
Coefficient of performance
Air-to-water heat pump
Draws heat from the outside air
Simple install, no drilling. The most common choice for renovations.
The 4 types of heat pump
The 4 types of heat pump
Efficiency is measured by the COP: a COP of 4 means 4 kWh of heat for 1 kWh of electricity.
COP 4,0–5,0
Coefficient of performance
Brine-to-water · Geothermal
Vertical geothermal probes in the ground
Drilling required. High, very stable efficiency all year round.
COP 5,0–6,0
Coefficient of performance
Water-to-water · Groundwater
Pumps water from the water table
The best efficiency. Requires a water table and a cantonal permit.
COP 3,0–4,0
Coefficient of performance
Air-to-air heat pump
Heats the air directly — reversible air conditioning
No domestic hot water. Warm in winter, cool in summer.
Estimate your savings
Compare your current oil or gas bill with a heat pump.
Indicative estimate, to be confirmed after an on-site visit.
Subsidies & support
Subsidies & support
Replacing oil or gas heating with a heat pump qualifies for grants. We handle the whole application.
Buildings Programme
Federal and cantonal grants to replace a fossil-fuel heating system.
Amounts vary by canton
GE, VD, FR, NE: rates vary with the power and type of heat pump.
Tax deductions
The energy investment is deductible from your taxes.
Application handled by us
Request, supporting documents and follow-up until payment.
Step 1
Visit & thermal assessment
Step 2
Model choice & quote
Step 3
Subsidy application
Step 4
Installation & commissioning
Step 5
Servicing & follow-up