Ventless Gas Heaters

Ventless gas heaters – How do they work?

Ventless gas heaters work by drawing air from the surrounding area into the heater, the air is used to burn the gas and after that the heat is released into the room via a process called convection. They do not have a flued pipe that leads to the outside of the house and thus they are very efficient in heating the house because no heat is lost.Unfortunately, this is the big disadvantage of ventless gas heaters. When natural gas or propane gas is burned, CO2 (Carbon Dioxide) is produced , which is harmful to humans and animals. This CO2 has to be released into the atmosphere to guarantee an emission-free living area. Ventless gas heaters do not have any pipe that leads to the outside of the house and as a result most of the emissions are release directly into the air of the room. So you should always consider this problem and subsequently you need to find some way to release or vent the fumes.

Ventless gas heaters – The Pros

Ventless gas heaters are incredibly efficient in heating rooms inside of your house. They are not connected to the outside of the house and therefore no direct heat is lost in the process of convection.  They operate at a 95%+ efficiancy and are therefore very useful for direct heating. Furthermore, they are cheaper than the vented gas heaters and easier to install.

On top of that most of the ventless gas heaters are portable and can be positioned anywhere in the house. This allows for great flexibility and independent heating. Want to sit on your terrace on a chilly summer evening? No problem, just plug in your ventless gas heater and enjoy.

Ventless gas heaters – The Cons

As we pointed out already, ventless gas heaters do not have a flued pipe that leads to the outside of the house. There the fumes created in the process of heating the air cannot be released into the atmosphere, moreover they are released directly into the air of the room. The Emissions include carbdon monoxide, carbon dioxide and water vapour. Oxygen depletion can be a result of this process. Because of this, some states do not allow the implementation of ventless gas heaters.

Another negative point is the production of water vapour, which leads to an increased humidity in the house and can result in aggressive mold grow.

Ventless gas heaters – The conclusion:

Like all products on the market, ventless gas heaters have advantages and disadvantages over ventfree gas heaters. On the one hand they are very efficient and most of the models are portable, so that they can be used at different locations. On the other hand, they can increase the risk of carbon monoxide poisoning and be a culprit for mold, as they do not have a flued pipe that releases emissions and water vapour into the atmosphere. In the end it’s up to you if you want to invest in ventless gas heaters.

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