How to choose your heat pump?

Which technology should you choose?

Air/water, air/air, with or without domestic hot water: discover the main criteria to consider before choosing your heat pump.

Which heat pump and technology?

Answer a few questions to identify the heat pump technology that best suits your project.

What is your project?
What heating system do you have?
Do you want to produce your domestic hot water with your system?
Do you also want to cool your home?
Have you already determined the required power?

Important: this questionnaire is a guide. It cannot determine the required power of a heat pump on its own. Sizing must also take into account building heat losses, insulation, emitters, the reference outdoor temperature and the required water temperature. Sizing carried out by a professional is recommended before placing any order.

The main criteria for choosing a heat pump

Air/water heat pump

An air/water heat pump captures the heat present in the outdoor air to heat a water circuit. It is particularly suitable for homes equipped with hydronic radiators or underfloor heating.

View air/water heat pumps

Air/air heat pump

An air/air heat pump uses outdoor air to heat or cool rooms directly with indoor units.

View air/air heat pumps

With or without domestic hot water

Some air/water systems can also produce domestic hot water, particularly with an integrated tank or one connected to the system.

Always check the exact contents of the kit before ordering.

Power

The power of a heat pump should not be determined solely by the home's floor area. Heat losses, insulation, emitters and operating temperatures must also be taken into account.

Monobloc or split

A monobloc heat pump combines the refrigeration circuit in the outdoor unit. A split heat pump has an outdoor unit and an indoor unit connected by a refrigeration line.

Single-phase or three-phase

The type of electrical supply must be checked before ordering. Some heat pumps operate on 230 V single-phase, while others require a three-phase supply.

Installing a heat pump

A heat pump is a piece of technical equipment that must be installed in accordance with the manufacturer's recommendations and applicable regulations.

Before ordering, it is particularly important to check:

  • the heat pump sizing;
  • compatibility with the existing heating system;
  • the required electrical supply;
  • the location of the outdoor unit;
  • the dimensions and weight of the equipment;
  • the hydraulic and electrical connections;
  • any constraints related to commissioning;
  • the delivery and handling conditions.

Frequently asked questions about heat pumps

How do I choose between an air/water heat pump and an air/air heat pump?

An air/water heat pump is generally intended for homes equipped with a hydronic system with radiators or underfloor heating. An air/air heat pump distributes heated or cooled air directly into rooms using indoor units.

What heat pump power should I choose?

Power should not be determined solely by the home's floor area. The calculation must also take into account heat losses, insulation, climate, emitters and operating temperatures.

Can a heat pump replace a boiler?

Yes, some air/water heat pumps are designed for renovation projects and can be used with an existing hydronic heating system subject to compatibility and sizing.

Can I keep my radiators with an air/water heat pump?

This depends particularly on the sizing of the radiators and the water temperature required to heat the home properly. A check of the existing installation is recommended.

Can an air/water heat pump produce domestic hot water?

Yes. Some models have an integrated domestic hot water tank or can be connected to a domestic hot water tank. The exact contents depend on the model chosen.

Does the power of a heat pump depend solely on the floor area?

No. Two homes of the same size may require very different power levels depending on their insulation, location, ceiling height, emitters and heat losses.

Should a heat pump be installed by a professional?

The installation must comply with the manufacturer's recommendations and applicable regulations. For operations requiring work on the refrigeration circuit regulatory qualifications and certifications must also be respected.

How are heat pumps sold by Green Negoce delivered?

Heat pumps are heavy and bulky equipment. Delivery terms may therefore differ from standard delivery. Check the conditions indicated on the product page before ordering.

Need help choosing your heat pump?

Are you hesitating between several models or power levels? Before ordering, check the specifications of your project and the compatibility of the model with your installation.