Discover our Canadian well kits and associated accessories
A Canadian well , also known as a Provençal well , is a surface geothermal ventilation system that uses the stable temperature of the ground to preheat the air in winter and cool it in summer.
This system consists of a network of conduits buried at a depth of about 1.5 to 2 meters, where the ground temperature remains relatively constant between 10°C and 15°C throughout the year. Outside air is drawn through these conduits, where it exchanges heat with the ground before being introduced into the house's controlled mechanical ventilation (CMV) system.
This helps reduce energy consumption by reducing heating and air conditioning needs, while improving indoor thermal comfort.
Choosing the right Canadian well
To live in temperate air thanks to a Canadian well, our team is at your side.
Within 24 hours maximum, we will get back to you to establish a free preliminary study
Discover other ventilation options
- Double Flow CMV : efficient ventilation with heat recovery.
- Filters for Double Flow CMV : ensure optimal air filtration.
- Ventilation network and ducts : conduits and accessories for a complete system.
- Single Flow CMV : a simple solution for effective ventilation.
- Air purifier with UVc lamps : for purer and healthier indoor air.
Canadian air or hydraulic well?
Whether your Canadian well is hydraulic or aeraulic (air), it will meet the following functions:
- Preheat the air in winter before entering the double-flow CMV; no more need for an electric preheating battery or reduction in the flow rate of fresh air from the double-flow CMV.
- Refresh the air in summer before entering the double flow CMV.
The hydraulic Canadian well version has the major advantage of avoiding hygiene problems that can arise due to humidity.
This also prevents the appearance of water stagnation in the pipes of a poorly implemented Canadian air well .
The difference is not negligible since nothing is worse than already stale air blown throughout your home.
Canadian well or Canadian well?
The correct spelling is "Puits" and not "Puits Canadien" as is often seen.
Here is the official definition from Larousse:
Canadian well
"surface geothermal device, taking air from outside a house to return it inside, heated in winter and cooled in summer. (Also called a Provençal well , this device is buried at a depth of around 2 m, where a constant temperature of 15°C prevails.)"

