The electric tank (or water heater) is an inexpensive solution that can be adapted to all households. Several models exist according to the needs of each one:
The instantaneous water heater, whose limited flow (3 to 4L per minute) restricts it to supplying a sink, for example. Inexpensive but also energy intensive.
The low capacity water heater, regulated by a thermostat and whose low capacity (10 to 50L) allows it to heat small volumes of water quickly.
Sufficient for a small household. The cumulus, operating on a double water storage system (hot and cold). Slower but also bigger. Suitable for moderate water needs (average family).
This type of installation is recommended for small budgets and limited housing.
However, it is a fairly energy-intensive solution and therefore not recommended in the context of an energy transition. If you can, we invite you to opt for the solutions below.
The high-performance condensing boiler
The condensing boiler can make it possible, by using a fuel (gas or oil), to produce hot water for a home in addition to heating.
Since its operation is based on reusing the fumes it produces, the condensing boiler is a much more economical installation (30% on average) than a conventional boiler.
High-performance models which, as their name suggests, represent the best available today, are eligible for the energy transition tax credit (CITE).
The thermodynamic water heater
The thermodynamic water heater ((or balloon) is a balloon associated with an air-water heat pump.
Thanks to this association, it is able to draw the energy present in the ambient air to produce hot water, which greatly limits electricity consumption in fave of a free and inexhaustible source of energy.
It’s significantly higher capacity than an electric balloon makes it an ideal solution for an entire family.
Only drawback: more or less noisy depending on the model, it requires a separate room (laundry room, cellar) of more than 20m² to be able to take in the ambient air.
So-called “split” solutions, which we recommend, do however exist to draw energy from the outside air and therefore limit the space required for installing the thermodynamic balloon.
The installation of a thermodynamic water heater is eligible for the energy transition tax credit (CITE) and reduced VAT at 5.5%. This solution is also mandatory for all new housing (RT 2012 standard).