Heat pump in Oise (60)
Installing a heat pump in Oise (60) first requires checking the actual needs of the property, its level of insulation and the existing heat emitters. In the department, configurations range from detached houses built since the 1980s to older stone homes equipped with gas or oil boilers. A heat pump should therefore not be chosen solely on the basis of floor area. The temperature required by the radiators, the condition of the building envelope, the position of the outdoor unit and hot water production must all be considered together.

Tip: have your energy performance certificate (DPE) and energy bills to hand for a more accurate estimate.
Why install a heat pump in Oise
Many detached houses still have an older heat generator. An air-to-water heat pump can be a suitable solution when the building has been sufficiently insulated and the emitters are compatible with its operation. In the detached housing areas in the south of Oise, accessible lofts often make it possible to address the main heat losses first. Reducing the needs before replacing the boiler helps avoid sizing the new equipment on the basis of a thermal situation that will subsequently be altered.
Older homes in the north and east of the department require greater care. Thick stone walls may retain strong thermal inertia while also presenting damp problems or limited insulation. Replacing the heating system should therefore form part of a broader assessment of the walls, ventilation and required flow temperatures. The climate in Hauts-de-France also makes it necessary to check how the system performs when outdoor temperatures fall and heating demand increases.
What a heat pump installation includes
Assessment of the system suited to the property
Choosing a heat pump begins with an analysis of the building and the existing heating system. An air-to-water solution can supply an existing wet heating circuit, while other configurations require a different arrangement. Floor area alone is not enough: heat losses, usage, the temperature required by the emitters and the location of the property are also taken into account.

Checking the radiators and heating circuit
Radiators designed to operate with a high-temperature boiler are not automatically suitable for the new heat generator. Their size, available output at a lower temperature and the balancing of the system must be assessed. The hydraulic circuit, circulation pumps and controls may also require adjustments so that the system operates consistently in every room.

Sizing after reducing heating needs
A house whose loft or walls still need to be improved does not have the same requirements before and after this work. When several improvements are planned, sizing is therefore based on the intended final condition. This approach helps avoid choosing a unit that is too powerful once the main heat losses have been reduced.

Positioning the outdoor unit
The location of the outdoor unit affects the installation. Distances from the indoor module, access required for maintenance, airflow and proximity to windows or property boundaries must all be considered. In a village house as well as on a housing estate, the integration of this equipment should be assessed before installation rather than decided afterwards.

Controls and hot water production
The controls adapt heating operation to the needs of the property. They can take account of outdoor temperature, indoor settings and different heating zones. When domestic hot water production forms part of the project, its volume and operating method are assessed separately so that room-heating requirements are not confused with those linked to household use.

Typical situations in Oise
Detached house with an old gas boiler
The property may have wet radiators and easily accessible loft space. Before considering replacement of the heat generator, the condition of the insulation, air leakage around hatches and ducts, and the operation of the ventilation should be checked. The heat pump is then sized according to the corrected needs.
Detached house heated by oil
Where the plot provides a possible location for the outdoor unit, an air-to-water solution can be assessed. However, the existing circuit and radiators must be able to operate with the planned temperatures. An older installation or rooms that are difficult to heat may require adjustments before the existing boiler is removed.
Older stone house
In Oise, thick walls and damp problems change the approach. It may be necessary first to deal with the causes of rising damp and improve certain walls with compatible materials. The heating system is then assessed on the basis of the building’s actual behaviour rather than a simple equivalent replacement for the old appliance.
Grants and funding
Depending on the project and the eligibility conditions, the installation may qualify for MaPrimeRénov’, CEE (energy savings certificates), reduced VAT or éco-PTZ (zero-interest eco-loan). The criteria vary according to the type of equipment and the circumstances of the property. The use of an RGE-certified professional is one of the requirements linked to certain grants. The relevant procedures should be checked before the work concerned begins.
You can contact us to assess the configuration of the property and the technical aspects associated with replacing the heating system. To find out the official rules for public schemes, eligibility conditions and procedures, also consult the France Rénov’ website.
How we work

Assessment of the heating system
We examine the existing heat generator, circuit, radiators, controls and hot water production.
Assessment of the building
We check the main areas of heat loss and any planned improvements that may change future requirements.
Choice of system
We define the configuration suited to the property, the heat emitters and the installation constraints.
Preparation of the installation
We determine the position of the units, the required connections and any adaptations to the circuit.

Settings and checks
The operation of the heating, controls and different emitters is checked to maintain a coherent installation.
Our other services in Oise
To complement a heating project, see our pages on global energy renovation in Oise, insulation in Oise, thermodynamic water heaters in Oise and energy audits in Oise. You can also consult the energy renovation Oise page, our Hauts-de-France page and the information dedicated to Beauvais.
Frequently asked questions
Can a heat pump directly replace an oil boiler?
Replacement is possible in certain configurations, but it should not be decided solely on the basis of the old appliance. The needs of the building, the temperature required by the radiators, the condition of the circuit and any planned insulation work must be checked before choosing the new equipment.
Should the house be insulated before installing the heat pump?
Where significant heat losses are identified, it is generally more coherent to reduce them before sizing the heating system. Improving the loft, walls or main air leaks can significantly alter the requirements. The unit can then be selected for the improved building rather than for its initial condition.
Can the existing radiators be retained?
That depends on their sizing and the water temperature required to heat the rooms correctly. Some systems can operate with a heat pump without complete replacement, while others require more suitable radiators or adjustments. A room-by-room check helps determine which changes are useful.
Where should the outdoor unit be placed on a house in Oise?
The location depends on the layout of the plot, the façade, access and proximity to openings or neighbouring properties. Sufficient airflow must also be maintained and access allowed for maintenance. The position is therefore assessed at the same time as the connections to the rest of the installation.
Let’s talk about your project
Tell us about your home and your goals: we help you prioritise the works and identify the grants worth looking into.