Heat pumps for efficient heating with environmental energy
Heat pumps use energy from air, ground, or water and make it usable for heating and hot water. They are particularly suitable for new buildings, energetically renovated buildings, and modern heating systems with low flow temperatures.
In the GEMA Shop you will find air-to-water heat pumps, brine-to-water heat pumps, and domestic hot water heat pumps for various applications. Important selection criteria are heating output, heat pump type, refrigerant, COP, SCOP, flow temperature, sound levels, and possible additional functions such as cooling, SG Ready, or PV Ready.
Notes
Use the filters to narrow down the selection by relevant properties such as manufacturer, product type, area of application, technical features, or availability. The information is provided for orientation purposes and does not replace a review of the technical suitability, compatibility, or proper use of the product.
Buying heat pumps – what matters when selecting and planning
A heat pump is a modern heat generator that uses electricity to raise ambient energy to a usable temperature level. Depending on the system, the energy is obtained from the outside air, the ground, groundwater, or the room air for hot water preparation. This makes heat pumps particularly suitable for energy-efficient buildings, underfloor heating, low-temperature radiators, and well-planned renovations.
What types of heat pumps are there?
The most common type in the residential sector is the air-to-water heat pump. It uses outside air as a heat source and can be retrofitted relatively flexibly. Brine-to-water heat pumps use geothermal energy and operate very efficiently, but require suitable development via borehole heat exchangers or horizontal collectors. Domestic hot water heat pumps are primarily used for hot water preparation and can be a useful addition to existing heating systems.
Advantages of modern heat pumps
- efficient use of ambient energy from air, ground, or water
- suitable for new builds, renovations, and modern low-temperature systems
- combinable with buffer tanks, hot water tanks, and photovoltaics
- depending on the model, also prepared for cooling function, SG Ready, or PV Ready
- good basis for a future-oriented heating system without fossil fuels
Important selection criteria for heat pumps
What matters is not just the heat pump type and heating output, but also the required flow temperature, the efficiency ratings COP and SCOP, the refrigerant used, the sound power level, and suitability for domestic hot water preparation or cooling. In the filters, you can narrow down the selection specifically by output, manufacturer, design, efficiency, and additional functions.
Note on output selection
The heating output of a heat pump must match the building, insulation, heating surface, and hot water demand. Output specifications serve only as an initial guide and do not replace a professional heat load calculation or system planning.
System integration and suitable additions
For reliable operation of a heat pump, the right system components are important. Depending on the system, heat pump storage tanks, buffer tanks, domestic hot water tanks or suitable Heating accessories and system technology into question. For complete solutions, it is also worth taking a look at heat pump complete packages.
Funding and profitability
Many heat pumps can be eligible for funding depending on the technical design, building condition, and current funding framework. However, a binding funding commitment cannot be derived from this across the board. Check the current conditions before purchasing and plan the system professionally so that the heat generator, storage tank, heating surfaces, and control system work together sensibly.
Frequently asked questions about heat pumps
Which heat pump is right for my home?
The right heat pump depends on the building, insulation, heating load, existing heating surfaces, and hot water demand. Air-to-water heat pumps are often the most flexible solution, while brine-to-water or water-to-water heat pumps require a suitable heat source and more planning effort.
What is the difference between an air-to-water and a brine-to-water heat pump?
An air-to-water heat pump uses outdoor air as a heat source and is relatively easy to install. A brine-to-water heat pump uses geothermal energy and can operate very efficiently, but requires borehole heat exchangers or ground collectors.
Can a heat pump also produce hot water?
Yes, many heat pumps can handle hot water preparation in addition to space heating. This typically requires a suitable hot water tank or heat pump storage tank.
Can I also cool with a heat pump?
Some heat pumps have a cooling function or can be integrated into a suitable cooling system. Whether this is possible depends on the specific model, system design, and existing heating or cooling surfaces.
What do COP and SCOP mean for heat pumps?
The COP describes the efficiency of a heat pump at a specific operating point. The SCOP indicates seasonal efficiency over a defined period and is therefore particularly useful for comparing different heat pumps.
How loud is a heat pump?
The noise level depends on the unit, its installation, and the operating conditions. Especially with air-to-water heat pumps, the sound power level, installation location, and distance to neighboring properties should be considered during planning.
Do I need a buffer tank or a heat pump storage tank?
That depends on the heating system and the system hydraulics. A storage tank can help stabilize operating times, provide domestic hot water, or sensibly connect multiple system components.
Are heat pumps eligible for funding?
Many heat pumps can generally be eligible for funding if technical and formal requirements are met. However, the specific conditions change regularly and should be checked for currency before purchase and installation.