Is It Time to Change Your Water Heater?


– Heating time takes too long
– Poor water supply
– Pressure reducing valve efficiency
– Choosing your water heater
– The capacity of the water heater
– Vertical or horizontal water heater?
– Basic principle: instant or accumulator?
– The choice of energy


How do you know if it’s time to change your water heater? – Is it because:
– it consumes too much?
– it doesn’t heat enough?
– Or that it is more than 10 years old?

And, how do you know if it is really necessary to change your water heater?

Unlike a boiler, a water heater does not need to be serviced regularly by a specialist. If it no longer heats water, it may be time to replace it. However, some problems with your water heater can be solved without a complete replacement.

Heating time takes too long

The water may take an abnormally long time to heat up if the resistor is scaled. In this case, drain your water heater and clean the heater to get rid of the scale and limescale.

Poor water supply

Water can hardly arrive if the pressure reducer is malfunctioning, e.g. if it is old. In this case, too, you may have almost no hot water left. Think about it: changing a pressure reducer is much cheaper (from $25-30 per piece) than changing a water heater. What’s more, it’s a safety guarantee for your installation!

Efficiency of the pressure reducer

You risk an explosion and damage to your valves if your safety unit and pressure reducing valve are not working correctly.
Here’s a simple way to check that the safety device is working properly: during the heating time, you should see water dripping. No more, no less.
– If the water does not drip, or if it dribbles more, it is a sign that there is a problem!
– If the water does not drip normally from the safety valve, this can also be a sign of a failure of the pressure reducing valve.

Choosing your water heater

While domestic hot water represents an important part of a home’s energy budget, we understand the importance of choosing the right water heater for your needs. From the power required to the type of water heater and the type of energy you prefer, this post tells you all about it.

The criteria for choosing a water heater are therefore multiple and they are all to be taken into account to be sure you make the right purchase. Below, you will find everything you need to know at a glance.

The capacity of the water heater

The first criterion to consider is the size of your home and the type of water points served (shower, bathtub, etc.). Knowing that a person consumes an average of 50 liters of water per day, you can estimate the capacity of your water heater. This is important because too small will not provide you with the comfort you want, and too large will result in unnecessary expenses.

Vertical or horizontal water heater?

Ideally, the water heater should be placed as close as possible to the tap points (bathroom, kitchen, etc.). Vertical or horizontal, with a capacity varying between 50 and 300 liters. Depending on the model, it can be wall-mounted or placed on a base.

Basic principle: instant or with accumulator?

General operation of the water heater

As its name suggests, the water heater is a device for heating domestic water, used for hygiene and cooking, among other things. The water heater is essential if your heating equipment (boiler or heat pump for example) is not equipped with a hot water tank.

Instantaneous water heater

The instantaneous water heater heats water on demand. It has only a small tank, so it takes up little space and there is no limit to the amount of hot water supplied. Due to its low flow rate, the pressure may be insufficient if several people are using hot water at the same time.

Accumulator water heater

Composed of an accumulator tank, this type of water heater can store a large quantity of hot water and offers a large flow of domestic hot water when the tank is full. The temperature remains stable. On the other hand, once the tank is empty, it is necessary to wait several hours before having hot water again.

The choice of energy

Between ease of installation, cost, volume, ecological sensitivity… it’s up to you to choose the energy that will power your water heater.

The electric water heater

Whether instant or accumulator, the electric water heater, which consists of a tank, a heater, and a thermostat, can be easily installed in any part of the house, except damp rooms. It requires little maintenance and can operate during off-peak hours, but its energy consumption remains high.

The thermodynamic water heater

With the thermodynamic water heater, the water is heated by a heat pump that recovers the energy present in the air. It must be installed in an unheated room and isolated from the rest of the house. Its high cost can quickly pay for itself if it is sufficiently used.

The solar water heater

The solar water heater captures the energy from the sun’s heat via thermal sensors and then transfers this heat to a heat transfer fluid that circulates to the tank to heat the water. Whether monobloc or with separate elements, this type of water heater represents a significant investment and requires renovation work.

The gas water heater

The instant gas water heater operates on butane or propane, instant or storage gas, and cannot be placed anywhere (it is prohibited in the bathroom and bedrooms) and the storage model must be connected to a drain.

All in all, if you are in South Florida, you can call Marlin Plumbing – they boast a team of professional plumbers who can be called at any time to provide water heater installation and repairs.

Hope this post has helped you find out whether it is time to change your water heater. Don’t forget to share your experience with our reader in the section below.

Is It Time to Change Your Water Heater?

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