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🇩🇰 All calculations are based on Danish rules, rates, and currency (DKK). This calculator is translated for convenience but applies exclusively to Denmark.

Heat Pump Calculator

Heat pumps are one of the most efficient ways to heat your home in Denmark, offering significant savings compared to oil, natural gas, or electric heating. This calculator estimates your annual savings and payback time. The rule of thumb is 0.05 kW × m² with moderate insulation.

Types of Heat Pumps

The most common types in Denmark are air-to-water and ground-source (geothermal) heat pumps. Air-to-water pumps cost 60,000–120,000 kr to install but are slightly less efficient in very cold weather. Ground-source pumps cost 100,000–180,000 kr upfront but deliver consistent performance and typically offer 50–70% savings. For newer houses, 100 m² requires about 2.0–4.5 kW, while older houses require 5.0–5.5 kW. A standard 150 m² house typically requires 6–8 kW.

Government Subsidies

The Danish government offers subsidies for replacing oil and gas boilers with heat pumps. Check the latest grants through the Danish Energy Agency.

Placement and Sizing

The indoor unit is best placed in the basement or utility room, preferably somewhere you can close the door and not too close to bedrooms.

Frequently Asked Questions

Can a heat pump be placed indoors?

Most people place the indoor unit in the basement, utility room, or similar. It should be placed somewhere you can close the door and not too close to bedrooms due to noise.

How many watts per m² for heating?

A rule of thumb is 70 watts per square metre in a normal house. Windows in older houses tend to let cold air in. A 300–400 watt panel can heat 2–4 m².

How big should a heat pump be in kW?

For newer houses with good insulation, 100 m² requires about 2.0–4.5 kW. For older houses with poor insulation, about 5.0–5.5 kW. A standard 150 m² house typically requires 6–8 kW.

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