The instantaneous electric water heater differs from the storage water heater by its lack of a tank. Its operation, as its name suggests, is limited to producing unlimited hot water only when you need it. Are you considering investing in an instantaneous water heater to produce your domestic hot water? Follow the guide to discover the advantages and disadvantages of the instantaneous electric water heater.
Focus on the advantages of the instantaneous electric water heater
The first advantage of the instantaneous hot water tank is undoubtedly its price. While a storage hot water tank costs between $200 and $3,000, you will have to pay between $200 and $600 to acquire an instantaneous model.
At a time when square meters are increasingly expensive, this equipment is a particularly suitable solution for small spaces since it does not have a storage tank. If you live in an apartment, and optimizing the living space is one of your concerns, the instantaneous electric water heater will fit into tight spaces.
Also, unlike the storage model, the instantaneous water heater is not affected by the accumulation of scale, limescale or bacteria. This type of device has a longer lifespan (15 to 20 years) than a boiler or a storage hot water tank (10 to 15 years). In addition, its maintenance is very limited.
Finally, the instantaneous water heater allows you to make significant energy savings. Indeed, since it only consumes energy when you draw hot water, you are assured of not wasting energy unnecessarily. Moreover, according to experts, such a device offers you the possibility of reducing your water bill by 30% compared to a storage water heater.
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Focus on the disadvantages of the instantaneous electric water heater
The instantaneous electric water heater has the defects of its qualities. Even if the absence of a tank offers interesting advantages, certain constraints exist: location, quantity of water available, etc.
Instantaneous electric water heater: equipment to be installed close to the draw-off area
The location of an instantaneous electric water heater must be given special attention. Indeed, even if the location of a water heater is always imposed, the constraint is even greater when it comes to instantaneous models.
In practice, while classic cumulus tanks can be installed up to 8 metres maximum from the draw-off area, instantaneous models must be placed between 20 cm and 3 metres from this same area.
Although restrictive, this distance to be respected is not without interest, particularly from the point of view of energy savings. Since the instantaneous water heater is located close to the water point, the hot water journeys are shorter, which has the consequence of:
- limit the waste of cold water (since hot water arrives more quickly);
- reduce energy losses, particularly storage and distribution.
Can you install an instantaneous electric water heater for the shower?
The lack of a tank in the instantaneous water heater actually limits the amount of water available.
To avoid getting into trouble, it is imperative to adapt the power of your water heater. For a shower, opt for a model delivering a power of 9 kW. If you opt for a model with a lower power, there is a good chance that the water temperature will not be sufficient to ensure your comfort.
Also, since with this type of model, the temperature drops proportionally to the flow rate required, it is advisable to equip your shower head with a water saver or a specific shower head.
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Installation of an instantaneous water heater by professional plumbers
As you will have understood, installing an instantaneous electric water heater is an excellent way to save money and optimize your living space. However, since this type of device is not without its constraints, it is crucial to choose a model that is perfectly suited to your needs.
Les Bons Artisans, as a specialist in home improvement, is committed to answering all your questions to support you in your project. Our professional plumbers, present in 95% of the territory, will provide you with a high-quality service at the fairest possible price. Moreover, to avoid unpleasant surprises, we are committed to providing you with a free, no-obligation quote before each of our interventions.
Would you like to benefit from the expertise of rigorous, transparent and qualified plumbers? Contact us by phone at (586) 630-2861 or fill out our form available on our website.
