Oxygen depletion sensors

Ventless garage heaters are considered the ultimate innovation when it comes to garage appliances. How do they work? Well, these heaters don’t vent the air outside of the house. Instead, oxygen is drawn for fuel combustion, while the heat that results from it is distributed inside the garage.

They are considered to be a breakthrough in their field because no exchange of air from outside of your garage is needed.

Almost all heaters need oxygen to burn the fuel and those which don’t complete the burning process lead to the creation of smoke and carbon monoxide-a poisonous gas which may turn out letal in an unventilated room!


Ventless garage heaters are described as highly effective, as their efficiency levels rise up to 99.9%. You don’t have to worry anymore about proper ventilation in your garage. They use natural gas or propane, which are amongst the cleanest burning fuels used for heating (they don’t produce any harmful emissions). Another advantage is that most gas heaters have oxygen depletion sensors which indicate the levels of oxygen in the room. If these levels will drop so much that they are considered unsafe, an alarm will be turned on.


So let’s see what are the drawbacks of this innovation. Firstly, concerns have been expressed towards depleting the oxygen levels in a closed environment which can lead to increased humidity. Secondly, humidity can lead to the appearance of mould and mildew.

Now that you’ve seen the pros and cons of purchasing a ventless garage heater you should know that they’re available in a wide range of sizes and styles. The installation process is not very complicated; you just have to read the instructions manual.

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