Hot Water Systems

Hot water is one of the main components of comfort at your house. We use it without even thinking about it. However, before entering the tap, the water must be heated. Accordingly, your task is to choose a water heater that will produce hot water at the right temperature at the right time, without going beyond your budget.

The right amount of hot water depends on how many people live in your home and how often they use water. If it is a question of reasonable water consumption, it is to be expected that a person uses 40 to 50 litres of hot water a day on average. However, you need an accurate assessment of your needs, because if you underestimate them, you risk being under a cold shower. Otherwise, if you overestimate your needs, the bill for hot water will increase greatly, as you will pay for a large amount of unused hot water. Some models of water heaters are able to remember how much hot water you consume daily and to regulate the production of hot water depending on your habits.


You can choose either a traditional electric water heater or a water heater with a heat pump or a solar water heater. Another important point: choose the right place to install, based on how much you have space you have. Depending on the model of the water heater, various types of tank installation are possible: installed on the wall vertically or horizontally, floor; installation in a confined space or installation in a room, for example, in a garage (for solar water heaters or water heaters with a heat pump).


A storage electric water heater is an economical purchase and an easy-to-install appliance: the water tank is heated by an electric heating element, like an electric kettle. Modern water heaters are equipped with an electronic thermostat and a digital display. The most advanced models are also equipped with some smart functions such as adjusting to your consumption and delivering up to 20% energy saving.


By purchasing a solar water heater, you can expect savings of 50% to 70% on your hot water bill. The water in the tank is heated thanks to a system of solar panels located on the roof. They contain a heat-conducting liquid capable of transferring solar energy through a heat exchanger (mainly a coil) to the hot water tank. This option requires a larger budget, as the installation of a water heater requires a lot of space (heating or utility room), and the roof should already be equipped with a solar panel system. Initial costs will be a lot but as a result, energy and money savings will be significant in the long term.


This is most likely the best and solution and will reduce your hot water bill by 50%. This device is a hot water tank integrated with a heat pump into a single unit. Depending on the model, the heat pump captures the energy that it transfers to the water tank from the air, ground or water.

Instant vs Storage

A storage hot water system keeps water at a certain temperature. In general, the boiler has the advantage of being able to deliver hot water much faster than an instantaneous system. The disadvantage of the boiler is that the supply of hot water available is not infinite and when it is empty, it takes time for the water to be at temperature again. This time can vary from a quarter to several hours depending on the type of device. Electric boilers also have a longer heating time than natural gas boilers. Electric boilers are generally easier to install.

Instantaneous hot water systems

Most instantaneous devices operate on gas. An instantaneous water heater only engages when the hot water tap is open. Instant devices, therefore, waste little or no energy in the absence of hot water demand. In terms of comfort, they offer an additional advantage: you never run out of hot water, unlike boilers. When purchasing an instantaneous device, you must check the maximum flow rate that depends on the power available.  There are also electric water heaters that are more expensive to use but less expensive to install.