What makes vent less natural gas fireplaces different?

So the first and most important aim of a vent less natural gas fireplaces is to retain the heat and save costs on burning excessive gas. The challenge is to deal with the carbon dioxide levels and of course the moisture.

Well the first difference is in the absence of the pipe to the outside. The purpose of this pipe is to rid the room of the moisture created from the burning of the natural gases, as well as the carbon dioxide - a result of gas burning oxygen. Carbon dioxide, if breathed in, is highly dangerous and it is necessary for the levels of this gas to be controlled.

But this opening to the outside lets most of the heat created from the burning gas out along with all the carbon dioxide and moisture. Carbon dioxide levels are carefully monitored by carbon dioxide sensors at the bottom of the set. The air that is sucked into the gas fireplace is used to detect the levels of carbon dioxide in the room. Once they reach a certain level, the gas fireplace automatically turns off. As the carbon dioxide levels return to normal the gas turns back on. You can facilitate the levels by keeping some leafy green plants on the same room with your fireplace.

So this effectively deals with the carbon dioxide - what about the steam? Unlike carbon dioxide steam is not dangerous and doesn’t gush from vent less natural gas fireplaces as it would do, from say a boiling kettle. Instead it will create mist on windows and add some extra humidly to the entire house. Essentially the air is wet and it has been proven that wet air is better than dry air, especially during the cold winter months, by the use of vaporizers to treat respiratory disorders. That is an added benefit for vent less fireplaces.