This is so that it can both take in air from the outside and then vent out the by products from the flames inside the fire box.
Vented vs vent free gas heater.
But what about the moisture vapor.
Infrared vent free heaters use gas to heat ceramic panels that radiate heat like the sun.
Ashley hearth products 11 000 btu direct vent natural gas heater model dvag11n 393 81 393 81.
This is not as flexible as a ventless gas fireplace.
If you are planning to buy a gas fireplace a vented model should be your first choice.
There is no such thing as a vent free gas fireplace.
They also give recommendations if you do buy a vent free such as keeping a window open top and bottom when you are using the appliance.
The increased amount of heat means vent free gas logs are much more efficient than vented sets.
Vented gas log sets are also less efficient since some of the heat that s produced escapes through the chimney.
Vented log sets are great if you have a large fireplace want a blazing fire and can live with lower efficiency and higher fuel.
The results are the same when a ventfree product is used to heat with.
Vent free is just a marketing term.
Vented gas fireplaces ventless gas fireplaces differ from vented gas fireplaces in terms of the logs flame patterning and most notably the method of venting.
Vented fire log sets burn about twice as much fuel as a vent free log set about 80 000 to 90 000 btus hour.
Most naysayers focus on the potential co issues and they may have a point.
If you re looking to add a supplemental efficient heat source to your home you may want to go with a vent free gas log set.
Vented propane gas log sets.
In order to install a vented gas fireplace you must use a chimney or an exterior wall.
Unlike vented these logs do not require a chimney or flue to operate allowing more heat to stay in your home.
Vent free gas heaters are available in two basic types.
Vent free room vented heaters fireplaces gas logs you are right on target with your informatiom about ventfree roomvented products it does not matter if it is a ventfree log space heater or ventfree fireplace.
Ashley hearth products 17 000 btu direct vent natural gas heater model dvag17n.
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Vented gas logs require a fully functional wood burning fireplace and must be burned with the damper open ventless or vent free gas logs can be installed in either a wood burning fireplace or a ventless fireplace that is rated for aftermarket ventless logs and are burned with the damper closed.
All gas fired appliances have exhaust.
And vent free models vent the exhaust inside the house.
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Both are extremely efficient typically more than 99 percent using the about the same amount of gas to produce the same amount of overall heat.
With vented fireplaces the flames can run through around and over the logs creating a more chaotic and realistic appearance.