Converting a garage into a living space is an excellent way of extending your home without the need for huge extension works. However, garages are not designed for optimum thermal comfort. Its insulation is often inadequate, and it generally lacks a suitable heating system. To ensure a pleasant living space all year round, it’s essential to choose an efficient heating solution that also optimizes insulation.
The importance of good insulation before installing a heating system
Before even thinking about the heating system, it’s essential to reinforce the garage’s thermal insulation. Poor insulation leads to significant heat loss, making any heating system less efficient and increasing energy costs. It’s advisable to start by insulating the walls with high-performance materials such as rockwool or extruded polystyrene, to limit heat loss. The ceiling should also be insulated to prevent heat escaping, especially if the garage is located under an unheated space such as an attic.
The floor should not be neglected, as garages often have a concrete slab that can be a source of cold. Installing an insulating covering, such as floating parquet on an underlay or cork boards, can considerably improve comfort. Finally, if the garage door is retained, it is preferable to replace it with an insulating bay window, or to reinforce it with a specific insulating material to avoid thermal bridges.
Heating solutions for a converted garage
Once insulation has been optimized, several heating options can be considered, depending on budget and technical constraints. Electric heating is often preferred for its ease of installation and affordable initial cost. An inertia radiator is a good compromise, providing gentle, even heat while remaining relatively energy-efficient. Electric underfloor heating can also be an interesting solution if floor renovation work is planned, offering optimal thermal comfort without taking up space.
For a more energy-efficient approach, the installation of an air-to-air heat pump is an ideal solution. It captures calories from the outside air and releases them in the form of heat, reducing energy consumption while guaranteeing an even temperature. What’s more, some models can cool the air in summer, offering a double benefit for a pleasant living space all year round.
If the garage is close to the central heating network, it may be possible to connect a hot-water radiator. This solution is particularly effective if the home is already equipped with an efficient boiler. However, additional work may be required to extend the heating circuit to the garage, which may entail additional costs.
Finally, for a more ecological and aesthetically pleasing solution, a wood or pellet stove can be an interesting alternative. Offering pleasant, natural warmth, they create a cosy atmosphere while providing high-performance heating. However, they do require space for fuel storage, as well as flue gas evacuation that complies with current standards.
Which solution to choose, depending on how the space is to be used?
The choice of heating system depends primarily on the intended use of the converted garage. If the space is used only occasionally, an electric heater, such as an inertia radiator, may suffice to heat the room quickly without too great an investment. On the other hand, if the garage becomes a genuine extension of the house, with regular occupancy, a more efficient system such as a heat pump or a connection to the central heating system will be preferable to ensure optimum comfort while keeping energy costs under control.
To sum up, heating a garage converted into a living space requires first and foremost effective insulation, followed by the choice of a heating system suited to your needs and budget. Each solution has its advantages and constraints, and the choice will depend on the specifics of the project and the level of comfort required.
Need a professional to optimize your heating?
If you’d like us to help you install or renovate your heating system, our experts are on hand to advise you and propose appropriate solutions. Find out more about our heating services on our dedicated page: Heating. To request a service or a quotation, contact us now via our online form: Contact.
