Canadian well (horizontal geothermal)

Used to pre-cool or pre-heat new air entering a home, the Canadian well works on the principle of geothermal energy. In order for the air to be diffused throughout the dwelling, the installation requires a combination of a Canadian well and a double flow ventilation system.

A real complement to your VMC, you will be able to gain in “clean” energy! Interested in this supplement? Contact us for more information!

What is a Canadian well?

Definition of the Canadian well

The Canadian well is also called provençal well or horizontal geothermal energy.

It exists in 2 versions:

The aeraulic version:

The principle of the Canadian air well is to collect the outside air via a tube, to make it circulate via a duct buried deep enough in the ground (between 1,5 and 2m) in order to benefit from the thermal inertia of the ground. In other words, the calories present in the ground will come to cool or to heat the air circulating in the Canadian well. Then, the double flow CMV takes over to bring this energy into the building.

In summer, the Canadian well allows to cool the air entering the house, while in winter it preheats it.

The hydraulic version:

In the case of the Canadian hydraulic well, glycol water is used as the heat transfer fluid. In other words, it is this water that will be used to transport the calories to heat or cool the air entering the building. This system requires a water/air exchanger so that the calories pass from the glycol water to the air entering the building. This exchanger is placed between the outside fresh air intake and the double flow CMV.

MyDATEC recommends the installation of a water well because it is:

  • Easier to install than the air shaft (no slope to respect, 32mm pipe instead of 200mm, adaptability to the ground and the implantation)
  • More efficient (water captures calories better than air)
  • Safer for your health (no radon problems or condensate management to avoid fungus problems that can develop in an air duct)
  • More durable in time (high resistance of the hydraulic pipes, adapts to the ground movement)

The advantages of the Canadian well and dual-flow ventilation system

The advantages of the Canadian well

An economical solution

The Canadian well is a very low energy passive heat exchanger. Therefore, by opting for such an installation you will considerably reduce the energy consumption used to cool and heat your home. This reduction is naturally reflected in the energy bill which will be significantly lower.

An ecological solution

In the continuity of the economic gain that we have just described, the Canadian well is therefore more ecological. Indeed, by reducing the energy consumption to heat and cool the house, it has a positive impact on the environment because the Canadian well avoids consuming gas, electricity or fuel oil.

Compliance with RT2012 regulations

The Canadian well is taken into account in the RT2012
just like the wood stove.

Canadian well and double flow ventilation = the ideal solution

A powerful solution

In terms of cooling, in addition to a
The Canadian well is particularly effective when used to cool the indoor air.

For the heating function, the Canadian well and the double flow ventilation system are a sufficient combination in most cases. However, in colder regions it is recommended to install an additional heating system such as a
pellet stove
or a
Log stove.

Similarly, the size of the dwelling and the volume of air to be heated must be taken into account to know if the combination of a Canadian well and a double flow ventilation system is sufficient. In this regard, a
personalized aeraulic study
can help identify which solution is best for your home.

A CMV compatible with other complementary systems

By choosing the
you benefit from a complementarity with different heating systems.

In fact, the MyDATEC CMV can be combined with a pellet stove from which it will recover part of the heat produced to diffuse it in the house. Same if you have a
log stove

The MyDATEC double CMV can also be installed in addition to
radiators and electric underfloor heating

Installation of a Canadian well

Need advice on how to start up or information on the Canadian well? Contact us for more information!

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