Vaillant Atmomag Reviews

Main advantage:

It is a powerful heater, capable of generating a water flow of up to 14 liters per minute. Therefore, it offers an optimal flow to obtain hot water in the shower and at the tap simultaneously.

Main disadvantage:

For the assembly it is necessary to have the help of a professional specialized in this type of device, since it is very important to guarantee that the installation complies with safety regulations.

Verdict: 9.9/10

It is an ecological equipment that helps prevent the production of polluting gases in the environment. In addition, it has class A energy efficiency and offers an affordable price.

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Main Features Explained


This equipment offers a high level of safety, since being a sealed heater it is capable of carrying out the combustion process in an isolated and sealed manner. In this sense, to heat the water, it has a conductor that allows oxygen to enter from outside the house. In this way, the flame can be generated inside the heater to start raising the temperature. During this procedure, a fan helps expel smoke and steam, preventing the accumulation of gases and possible leaks, which increases the safety and durability of the equipment.

On the other hand, it is a Low Nox heater, so it complies with European safety regulations that guarantee that emissions are below the pollution limit. Thanks to this, it is a more ecological, efficient and environmentally friendly equipment, so it can be used for long periods of time without causing serious damage to the ecosystem. For this reason, according to the opinions of some users, this is one of the best waterproof heaters today.

It has a security system with a high temperature sensor that can detect the level of the flame. Similarly, it incorporates a control panel to interrupt the gas supply when you need it, which increases protection in the event of operating problems or electrical failures.


It works with Liquefied Petroleum Gas also called LPG. This type of gas is mainly made up of butane, which is a hydrocarbon commonly used as fuel for kitchens, stoves and ovens. Also, LPG gas has propane, an odorless element that is generally used as fuel, especially to light sealed heaters like this one.

It is important to mention that, by liquefying these two elements, their volume is reduced to facilitate their transport, so moving LPG gas tanks in small quantities does not require too much effort. On the other hand, one of the main advantages of this type of gas is that it can work in homes that do not have a close connection to natural gas, which favors practicality. Thanks to this, it is possible to install this heater anywhere.


By opening a faucet connected to the heater, the gas automatically ignites the flame and cold water enters the heater to circulate inside the coil. Once the water is already hot, it rises through the piping circuit to the outlet point where it is required, which happens in a matter of seconds to provide a rapid and continuous flow of hot water.

Therefore, it is a heater that does not accumulate water, but can provide DHW according to the user’s demand. Thanks to this, it helps to reduce the waste of water and electricity. In this case, it is important to mention that it is a device with class A energy efficiency, which favors resource savings. On the other hand, it is capable of providing up to 14 liters of hot water per minute, which is enough to open 2 taps simultaneously, for example the shower and the sink or kitchen tap.

For greater versatility, it has an electronic ignition system powered by a D-type battery, capable of providing optimal operation for a long time before having to change it. In addition, this battery is included in the package, so it is not necessary to invest more money to acquire it.

As if that were not enough, this heater has a power button and 2 rotary buttons on the front, which make up the OPTI-MOD system, suitable for modifying the level of the flame according to your needs.

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