Direct vent (vented) gas fireplaces
These modern fireplaces use direct-vent logs for burning. Although synthetic, they burn like real wooden logs and produce smoke (carbon monoxide), which has to be managed in two ways:
It has to be removed from the fireplace compartment. For this, a coaxial (2-layer) exhaust pipe is fitted at the rear of the fireplace body. Its other end is connected to a vent. The coaxial pipe works this way - its outer layer lets in fresh air to enable combustion, while the inner layer throws out the exhaust air in the atmosphere.
Prevent the exhaust air from spreading in the room. For this, manufacturers provide a high-temperature front glass panel that needs to be kept closed or only slightly open while the logs are burning.
The direct-vent logs burn much like the natural logwood. And the contemporary designs manage the exhaust process quite efficiently. Hence, if you want an ambiance of an authentic, almost-real fireplace, choose this type. On the flip side, they produce less heat than the ventless models since the smoke produced during the combustion process "eats up" some heat.
You would want this model if:
You have toddlers and/or pets. The front glass panel will prevent their direct contact with the fire compartment.
You are remodeling your home. With the coaxial pipe vent, you can prevent extensive masonry that can damage the house's structure. This is of particular importance for apartments with common walls.
You want a higher-level installation. It gives the fireplace a classier look.
Endearing designs and fire effects that create an ethereal ambiance that is not only warm but heart-warming too.
Plus, of course, fuel-efficiency. Contemporary designs are smart energy-savers.
Ventless (vent-free) gas fireplaces
They use fire-logs that don't produce carbon monoxide during combustion. They also produce more heat than the direct-vent models, and hence they are more energy-efficient. Because vent-free models don't have the front-sealing glass panel, they transfer 99.99% of the heat produced into the room.
However, these fire-logs do produce carbon dioxide and moisture (water vapor) as byproducts. Hence, you cannot use a vent-free fireplace for very long, or you will begin to feel humid and stuffy. Also, indoor moisture can breed mold, mildew, and other bacteria. You will have to keep a window open to let out the byproducts. This will also cause some heat-loss.
Ventless gas fireplaces are popular because:
They are affordable. Compared with direct-vent models (upward of $2,000), they are over 50% cheaper ($600-1,000).
They provide clean heating, without releasing any micro-particles of dust, soot, or ash in the room air.
They are more energy-efficient than the direct-vent models
Modern designs are every bit an art-piece! No less alluring than their direct-vent cousins.
These are versatile designs that will adapt to many types of decors. Traditional solid wood or avant-garde light furniture, abundant indoor greenery or more of wall-art, soft, concealed lighting or luminous chandeliers, there is a bespoke ventless gas fireplace design for all decors.
Please note:
Ventless gas fireplaces are not legal in California and Massachusetts
They cannot be used at altitudes above 4,500 feet because the oxygen-deficient thin air will be unable to burn the logs.
Due to the moisture factor, these models are not advisable for persons with asthma, cough and cold, and respiratory disorders. On the other hand, they double up as humidifiers, which is great for indoor plant-life.
Freestanding fireplaces
These are not part of a wall, but independent fireplaces placed along a wall, much like a cabinet. Not having a venting system, they offer all the benefits of a vent-free fireplace in a smaller version. The decorative elements include:
- Real wood or wood-replica finishes with attractive textures
- White or dark-colored finishes that match or contrast well with almost all wall colors
- Carving, inlay, batten, and other surface artistry
- Classy front metal grill or mesh
- Sturdy stepped foundation for enhanced looks
- Sleek top for display of décor items or small statuettes and planters
Freestanding fireplaces will be your natural choice if:
- You don't have an existing firebox or fireplace provision
- If you don't want the hassles of extensive masonry and installation to create a new fireplace
- If yours is a compact urban home yet you want the luxury of a fireplace
Freestanding gas stoves
They are the design variation of the freestanding fireplaces with these features:
Available in many retro and modern designs, hence they can match and enhance diverse interior spaces
With care, you can also transfer them from one room to another
Depending upon the room size, they can function as a primary or secondary heating source
Some models have dual power input options - electric and battery, hence you can temporarily transport them even to your patio or porch
Weighing around 70-90 lbs, they can be lifted and moved by two persons
Heating capacity equivalent to that of a fireplace - around 1,100 - 1,200 square feet at about 30,000 British Thermal Unit (BTU). It is a universal unit of heat defined as the amount of heat that can increase the temperature of one pound of water by 1 degree Fahrenheit.
Freestanding gas stoves are good for you if:
You need a modular fireplace to heat different areas at different times
You live in cold climates where you need a secondary heating source in extreme weather
You want an outdoor heating source for those chilly evenings in your patio or garden