When you’re investigating gas log sets for your home heating, you may encounter the terms yellow flame logs” and blue flame logs.” In truth, this is often just another way to say vented gas fireplace” and ventless gas fireplace,” respectively. Many of the gas fireplaces sold today evacuate combustion products using a vertical chimney (gas vent), which takes advantage of the natural draft caused by the temperature of the flame (hot air rises). We’ll agree that gas fireplaces, both vent-free and direct vented, can be much more efficient heaters than forced air furnaces, because they deliver the heat directly into the living space without the need for energy-wasting ducting (typically, it would take an 80,000 btu gas furnace to heat the same house you heated with your 48,000 btu vent-free).
In a B-vented unit, the most commonly used in homes and apartments with existing fireplaces, the air used for combustion comes from inside the house while exhaust gases are vented outside through a pipe run up an existing chimney or installed as a stand-alone vent stack. Alternatively called unvented, vent-free, or ventless, this type of indoor fireplace pipes natural gas or propane into a gas unit, with flames running through gaps in artificial ceramic fiber logs. Vent-free products are typically the most efficient of all fireplaces or gas logs since all the heat is generated into the room or home. Ventless gas log fireplaces can be installed anywhere in the home and provide very high efficiency heating. Up-to-date pricing and reviews for ventless gas fireplaces on the market can be found at the Fireplace Models website.
Essentially, these products must meet the general requirements for all combustible heating appliances established in the 2002 version of the National Fire Protection Association’s standards that require ventless fireplaces to have factory-installed carbon monoxide monitors and oxygen detection safety devices (ODS). Ventless fireplaces are standalone structures that function off natural gas, propane, alcohol-based gels, or electricity, but do not require a vent or open chimney flue to heat a room like traditional gas or wood-burning fireplaces,” says Kaley Galinsky, fireplace and outdoor fire merchant at The Home Depot They are a good alternative for creating the same warm atmosphere.” Unlike their vented counterparts, ventless gas logs don’t need a chimney or flue to function (though they can be installed in a functional fireplace with the damper open or closed).
Gas logs are designed to be installed only in wood burning fireplaces, or in some cases, a ventless firebox that is factory approved for aftermarket ventless logs. So if you like the looks of the vented gas logs you see on our website, they would require you to have installed a wood burning fireplace with a gas line piped into it. Vented gas logs are much more for enjoyment and realism than for heat. 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.
If you haven’t yet decided between any of those three heating products, check out our blog post on the pros and cons of each option Once you decide, you will have to pick between two venting options: vented vs ventless gas fireplaces. A wood burning fireplace with a damaged flue can be very expensive to repair as the rustic décor is dismantled rock by rock looking for the faulty seal and it has become typical to install vent free gas logs into existing fireplaces rather than incur the expense of repairing or cleaning chimneys with broken seals or clogged with deposit from years of burning gases and wood. The ventless gas log fireplace offers an efficient and instant solution for a heat source without the complex designs necessary for vented gas fireplaces and wood burning fireplaces.
The second inefficient method is called either B Vent” or Natural Vent.” A firebox is designed around a set of logs which cannot be switched, less gas is burned, and with only a few exceptions, the doors must remain open which also pulls already heated air up the chimney. Vented gas logs can’t be covered with glass doors or solid grates, similar to natural wood-burning fireplaces. A common question is whether a vented or ventless gas log fireplace can be installed in an existing chimney.
Modern vented gas fireplaces can also be installed as a direct vent” system , which can vent heat through a pipe in the wall. When an unsealed (non-direct-vent) gas fireplace has been installed in a home that has lower pressure than outside, the house can become a more efficient chimney than the fireplace chimney itself – especially if the chimney is located on an outside wall. This natural gas wall heater with a vent-free design is one of the most fuel-efficient heating products on the market, meaning you will be able to chill out in your toasty living-room guilt-free knowing you are not only sparing your wallet but the environment.
Some ventless fireplace proponents say that newer units use catalytic-converter technology that cleans hot air as it leaves the combustion chamber, and that if ventless fireplaces are properly installed and serviced, they should work well and safely. Ventless fireplaces that are connected to a gas or propane line require professional installation by a gas or plumbing contractor, and shouldn’t have a heating capacity that exceeds the appropriate room size recommended by the manufacturer. • Most ventless gas logs can be installed either in a fully functioning wood-burning fireplace or in a factory-made ventless fireplace but you will want to refer to your gas log’s manual to find out specifically where they can be installed.
So, ventless gas fireplaces could be installed in areas like the interior of a home (without a chimney) – places that vented gas fireplaces could not ever be installed. Ventless gas fireplaces differ from vented gas fireplaces in terms of the logs, flame patterning, and most notably, the method of venting. Welcome to Total Home Supply’s ventless gas heaters section, home to a wide selection of vent free gas heaters and furnaces fueled by propane or natural gas featuring blue flame or radiant/infrared heating.
Vented gas-insert fireplaces also require chimneys, but small flexible heat-resistant pipes are generally sufficient, and there is less smoke and soot than with vented gas-log varieties. If you have a B-vent, direct-vent or a stove that is wood or gas, you may not be able to install replacement vented or vent-free gas fireplaces. If your setup is masonry, you can install either vented or vent-free gas log fireplaces.
They use the air in your house for combustion — this air forms the fuel to burn your natural gas and sends flames up the flue, just like a wood fireplace would. As we’ve said, there are two major varieties of gas log fireplaces: vented and ventless (or vent-free) fireplaces. With ventless fireplaces, the ceramic logs have specific locations where the gas can enter, creating a set pattern for the flames to burn.
Ventless fireplaces use gas or propane to light up ceramic logs. If your walls are not insulated, the moisture can attach itself to your interior walls and possibly dampen fabrics in the room where the vent-free gas log fireplace is installed. Unvented gas logs are designed to produce a very hot flame that results in nearly complete fuel combustion, decreasing the levels of carbon monoxide and soot that are produced by other gas logs.
You may hear the term unvented gas logs referred to as vent-free gas log fireplaces. As of September 2003, an agreement between the Government of Canada and the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI) established an energy efficiency rating system for vented gas fireplaces. With a vent-free or ventless fireplace, he said, air from inside the house is taken into the firebox, where it is used to support combustion, and the byproducts are exhausted back into the house.
WITH energy prices rising and with real wood as tedious as ever to chop, stack and carry, growing numbers of homeowners are using increasingly efficient gas logs and gas-fueled fireplaces as a supplemental source of heat. Ventless fireplaces fueled by gas or propane rely on indoor air for combustion, and they exhaust a low level of their combustion gases into the room in which they’re located. Ventless fireplaces are typically freestanding units that don’t require a flue or chimney to exhaust combustion air to the outdoors, making them relatively easy to install in any room.
Also, ventless gas logs and fireplaces are not allowed in California or Massachusetts, as well as other areas of the US. Before purchasing and installing a set in your home, you’ll want to double-check that your region and building allows them. With vented gas logs, you can rearrange the logs in any position you want, as long as you leave some room between the logs for airflow (this will prevent a lot of soot build up.) You can even add decorative gas log accessories such as pine cones, branches, & wood chunks to completely customize your fireplace. All vent free gas fireplaces operate without a chimney, flue or vent and can be installed in any room of your house.
Because ventless gas fireplaces do not need a chimney and use air in the room for combustion, there will be exhaust fumes emitted as well as some moisture from burning gases. Unlike vented gas logs , they can be installed just about anywhere and do not need a vent or chimney. Gas Fireplaces & LogsFirewoodVentless FireplaceFireplace Accessories.
Although it sounds a bit counterintuitive, ventless gas fireplaces are similar to a gas-powered oven, in that the flame is safely generated without need for venting, and the heat and gases dissipate into the nearby air. Ventless gas fireplaces — also known as vent-free or unvented gas fireplaces — offer a convenient option to homeowners who want a genuine fire but don’t have a flue or chimney. Also, propane burns nearly twice as hot as natural gas by volume, the ventless gas logs are ported differently for each fuel type, so they end up producing the same amount of heat.
Ventless gas logs will provide more heat and will not create soot (if properly installed), but they are far less realistic. Answer: After being in the fireplace business for over 25 years and personally installing over 3,000 gas logs, I can say without a shadow of a doubt that “Vented” gas logs are going to be much more realistic in appearance than ventless logs. Answer: Ventless logs have limitations on the type of fireplaces they can be installed in. If it is a masonry fireplace, the answer is most likely yes.
Question: Can ventless logs be installed where vented logs are currently installed for more heat ? Vented gas logs are burned with the damper open, so just like a real wood fire, a draft is created that draws the exhaust up the chimney and outside your house. Power vented gas fireplaces can be installed where other types of fireplaces might not work, such as a freestanding wall.
Natural vent (also referred to as B-vent) hearth products take in combustion air from inside the home and vent products of combustion outside home via a brick and mortar chimney or pipe venting system installed through the roof. In Massachusetts, ventless natural gas fireplaces cannot be installed in a bedroom or bathroom. Continue reading to learn more about vented vs. ventless gas fireplaces to learn the best heating product option for your home.
Because they don’t require connection to a chimney or flue, ventless fireplaces can be inexpensively installed in almost any room of the house. According to the VGPA, ventless fireplaces can be safely operated in tight homes because “an unvented gas heating appliance would be operating less during the usage period.” This means that the amount of nitrogen dioxide in the room would be lower. Even that alternative to the wood-burning fireplace, the vented gas fireplace, is being installed in fewer numbers due to the rise of air-tight homes , which save energy by closing off all possible thermal passages.
Ventless fireplaces are more energy efficient than vented fireplaces because no heat escapes up the flue, so you’ll save money on gas utility bills. A note about fuel: Ventless fireplaces are powered by either natural gas (NG) or propane (LG), and while you can shop for models that display either the NG or LG designation, virtually any gas fireplace can be converted from one type of fuel to the other through the installation of a converter. In addition ventless gas log fireplaces have recently evolved into the contemporary designs of the modern home with fire effects that do not strive to mimic to appearance of wood but enhance the beauty of light with crushed colored fire glass and both natural stone and geo-metric shapes.
Vent-free gas log fireplaces have become very ornate with decorations rivaling the realism of vented gas fireplaces and wood burning fires. Whether you’re looking for a ventless propane wall heater, or a natural gas free-standing, let us help you stay warm throughout the colder months — shop our selection now. The first method, called dual fuel,” is where a vented gas logset is added to a fireplace already capable of burning wood.
Vented gas-log fireplaces have smoke and soot and require chimneys and chimney cleaning. According to NW Natural Appliance Center in Portland, Oregon, gas-log fireplaces are approximately 10 percent efficient and have similar efficiency ratings to wood-burning fireplaces. Of course, when you’re installing an outdoor firepit, there’s no need to worry about vented vs. vent free — all outdoor fireplaces burn and vent heat to the air outside!
If you have a prefab wood-burning setup, you may or may not be able to install gas logs, though generally you’ll be able to install a vented system. Many people are concerned about carbon monoxide emissions from ventless gas log fireplaces. The efficiency of a vented gas log fireplace is far higher than that of a wood-burning system, which can provide as little as 10% heat from the energy generated.
This allows them far more versatility than traditional vented fireplaces that have to be installed in a traditional chimney setup. They are more efficient than wood-burning fireplaces, as most of the energy generated from burning natural gas is released into the home as heat. A vented fireplace is normally installed in a traditional chimney, often one that was originally designed as a wood-burning fireplace. Be sure to visit the fireplace models website for the top fireplaces on the market to buy.
Vented vs. Ventless Gas Log Fireplaces. Yellow vs. blue flame fireplaces can also be thought of in terms of realism”— that is, yellow flame logs more closely resemble wood-burning fireplaces, while blue flame logs tend to be more efficient and hotter. Let’s break down the similarities and differences between ventless and vented gas log fireplaces and learn what you need to know, so you can make the right choice for you and yours this season, whether it’s for holiday cheer or fun times in your outdoor oasis.