Vent Free
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The Truth About Vent Free Gas Heating Appliances
Millions of people worldwide are enjoying the benefits of heating their living spaces with vent-free gas heaters, logs, fireplaces, and stoves.
Why choose vent free?
Vent free (unvented) heaters are 99% energy efficient! That’s because all of the usable heat energy goes into the space. No heat is wasted through a flue to the outside air. Therefore, they cost just pennies an hour to operate and can save consumers a bundle in heating costs during the cold months.
Furthermore, vent free heaters supply supplemental heat where you need it, when you need it, allowing for lower central heating demands in areas such as family rooms, dens, kitchens, dining rooms and bathrooms. They are ideal for hard-to-heat areas such as basements, room additions, sun porches or utility rooms.
Are vent free heaters safe? What about indoor air quality (IAQ)?
Here’s a little chemistry 101. We know that perfect combustion of fuel (natural or propane gas) produces carbon dioxide and water. Properly installed and maintained vent free heaters fall into that category of nearly perfect, complete combustion. As long as there is adequate ventilation to the space, these products of combustion are considered natural and non-toxic. We deal with these elements to some degree every day.
What if oxygen levels are too low or carbon dioxide levels are too high?
That can produce toxic levels of carbon monoxide (CO), which could affect a person’s health. The good news is that an oxygen depletion sensor (ODS) built into all vent free appliances designed for dwelling spaces of the home guarantees that the oxygen levels never drop below 18 percent. Therefore, even if someone fails to follow proper ventilation guidelines, it is unlikely that lethal levels of CO could ever occur.
From a combustion safety viewpoint, properly sized and maintained vent free heaters are excellent for most spaces. However, consumers need to know that the combustion process produces water. A 20,000 BTU vent free heater will produce about ¼ gallon of water into a living area each hour.
Is water vapor a pollutant?
Not in moderate amounts. Too much, however, could increase a person’s susceptibility to upper respiratory disorders. On the other hand, so can air that is too dry, especially during the winter months where relative humidity indoors can be quite low. Note that many people feel that the extra humidity actually makes them feel healthier and alleviates the need to add some type of humidifier. A vent free heater can provide that extra needed humidity.
If you notice excessive condensation on windows and other cold surfaces, or in wall cavities, that is a good indicator that you don’t have enough fresh air to offset the water vapor being emitted into your space. This can occur in a home environment even without a vent free appliance operating. There are other producers of humidity inside the average house such as washing machines, dryers, bathrooms kitchens and people.
Ventilation into every home is important. As the old adage states "the solution to pollution is dilution". Infiltration of outside air is good. Some newer homes are so tight that mechanical ventilation must be added to sufficiently keep concentrations of combustion products and other contaminants at low levels.
The truth is, vent free heaters are, in and of themselves, extremely safe, economical to operate and, when properly sized and maintained, are proven to meet today’s rigorous standards for air quality. And as long as consumers demand energy-saving products, the future of vent-free appliances looks very bright indeed.
A qualified vent free appliance dealer will ask all the right questions to help you determine the appropriate amount of BTU’s needed to heat your space and give helpful guidelines for ensuring safe, trouble-free operation.
About the Author
Scott Workman owns and operates Infra-Red Products Supply, Inc. of Draper, Utah. In business since 1986, Infra-Red Products has become recognized as one of the foremost leaders in energy saving heating system design and sales for residential, commercial and industrial consumers. Want to learn more about efficient vent free heaters and heating systems? Email us at getheat@msn.com or visit our web site at: =>
http://www.heatersunlimited.com
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ODGR500PV 42 Outdoor Radiant Vent-Free Fireplace in Stainless Steel - $2166.3 42 Outdoor Radiant Vent-Free Fireplace in Stainless Steel |
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ODGR500NV 42 Outdoor Radiant Vent-Free Fireplace in Stainless Steel - Natural $2166.3 42 Outdoor Radiant Vent-Free Fireplace in Stainless Steel |
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ODGR400PV 36 Outdoor Radiant Vent-Free Fireplace in Stainless Steel - $2050.2 36 Outdoor Radiant Vent-Free Fireplace in Stainless Steel |
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ODGR400NV 36 Outdoor Radiant Vent-Free Fireplace in Stainless Steel - Natural $2050.2 36 Outdoor Radiant Vent-Free Fireplace in Stainless Steel |
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GVF40N2 36 See-Thru Vent Free Fireplace Remote Ready Natural $1799.1 Napoleon GVF40x2 36 See-Thru Vent Free Fireplace Remote Ready |
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GVF40P2 36 See-Thru Vent Free Fireplace Remote Ready Propane $1799.1 Napoleon GVF40x2 36 See-Thru Vent Free Fireplace Remote Ready |
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GVF40P3 36 Peninsula Vent Free Fireplace Remote Ready Propane $1799.1 Napoleon GVF40x3 36 Peninsula Vent Free Fireplace Remote Ready |
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GVF40N3 36 Peninsula Vent Free Fireplace Remote Ready Natural $1799.1 Napoleon GVF40x3 36 Peninsula Vent Free Fireplace Remote Ready |
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GVF40P4 36 Island Vent Free Fireplace Remote Ready Propane $1799.1 Napoleon GVF40x4 36 Island Vent Free Fireplace Remote Ready |
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GVF40N4 36 Island Vent Free Fireplace Remote Ready Natural $1799.1 Napoleon GVF40x4 36 Island Vent Free Fireplace Remote Ready |
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GVF36P 36 Vent Free Fireplace Remote Ready Propane $764.1 Napoleon GVF36 36 Vent Free Fireplace Remote Ready |
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GVF36N 36 Vent Free Fireplace Remote Ready Natural $764.1 Napoleon GVF36 36 Vent Free Fireplace Remote Ready |
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GVFL30P 30 Vent Free Gas Log Set Remote Ready Propane $697.5 Napoleon GVFL30 30 Vent Free Gas Log Set Remote Ready |
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GVFL30N 30 Vent Free Gas Log Set Remote Ready Natural $697.5 Napoleon GVFL30 30 Vent Free Gas Log Set Remote Ready |
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GVFL24P 24 Vent Free Gas Log Set Remote Ready Propane $594 Napoleon GVFL24 24 Vent Free Gas Log Set Remote Ready |
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GVFL24N 24 Vent Free Gas Log Set Remote Ready Natural $594 Napoleon GVFL24 24 Vent Free Gas Log Set Remote Ready |
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GVFL18P 18 Vent Free Gas Log Set Remote Ready Propane $549 Napoleon GVFL18 18 Vent Free Gas Log Set Remote Ready |
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Brondell Breeze Vent, Pack of 3, Rainforest Vent $18 Brondell Breeze Vent, Pack of 3, Rainforest Vent is available from bedbathstore.com for only $12.99. Shop bedbathstore for the best price and quality with Free Shipping. |
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SC30T1NG Thermostat Control Vent-Free Room $455 A vent-free radiant infrared propane room heater is perfect when you need quick and convenient heat When the heater has a thermostat Control it will do an even better job of keeping you warm and comfortable The 27000 BTUs are clean emissions free and... |
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SC30T1LP Thermostat Control Vent-Free Room $437 A vent-free radiant infrared propane room heater is perfect when you need quick and convenient heat When the heater has a thermostat Control it will do an even better job of keeping you warm and comfortable The 27000 BTUs are clean emissions free and... |
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FA2A Firebox Blower - For Universal Vent Free Radiant $302.4 Your Universal Vent Free Circulating Radiant Firebox is already an excellent secondary heat source but did you know that there39s an easy way to make it even more efficient and effective Adding a Majestic FA2A Firebox Blower to your firebox will imp... |
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Napoleon GVF36 Vent Free Propane Gas Fireplace $764.1 A Napoleon vent free fireplace complements your home perfectly without the complexity of having to install venting. This fireplace does not require electricity to function, making it the perfect light and heat source even during a power failure. The ceramic fiber, light-weight molded log set adds a natural look and feel to any room, making this fireplace the perfect conversation piece. This vent free propane gas fireplace includes the added safety bonus of an auto shut-off gas control system. The Napoleon GVF36P fireplace is EPA approved for overall maximum heating efficiency, which means you can achieve more heat with substantially less fuel. Napoleon delivers safety through functional products that have been both CSA and ANSI certified. Dimensions (in inches): 13 1/4 D x 37 1/4 W x 35 1/2 H. This fireplace requires louvres or an inset to complete installation. |
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Napoleon GVF36 Vent Free Natural Gas Fireplace $764.1 A Napoleon vent free fireplace complements your home perfectly without the complexity of having to install venting. This fireplace does not require electricity to function, making it the perfect light and heat source even during a power failure. The ceramic fiber, light-weight molded log set adds a natural look and feel to any room, making this fireplace the perfect conversation piece. This vent free natural gas fireplace includes the added safety bonus of an auto shut-off gas control system. The Napoleon GVF36N fireplace is EPA approved for overall maximum heating efficiency, which means you can achieve more heat with substantially less fuel. Napoleon delivers safety through functional products that have been both CSA and ANSI certified. Dimensions (in inches): 13 1/4 D x 37 1/4 W x 35 1/2 H. This fireplace requires louvres, or an inset to complete installation. |
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Napoleon GVF42 Vent Free Propane Gas Fireplace $899.1 Napoleon brings you the best in home fireplace technology with this vent free fireplace. This fireplace does not require electricity to function, making it the perfect light and heat source even during a power failure. The flame intensity is adjustable for maximum comfort and efficiency. This vent free propane gas fireplace includes the added safety bonus of an auto shut-off gas control system. The Napoleon GVF42P propane gas fireplace is EPA approved for overall maximum heating efficiency, which means you can achieve more heat with substantially less fuel. Napoleon delivers safety through functional products that have been both CSA and ANSI certified. Dimensions (in inches): 22 D x 42 W x 38 1/2 H. This Napoleon fireplace requires louvres or insets to complete installation. |
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Napoleon GVF42 Vent Free Natural Gas Fireplace $899.1 Napoleon brings you the best in home fireplace technology with this vent free fireplace. This fireplace does not require electricity to function, making it the perfect light and heat source even during a power failure. The flame intensity is adjustable for maximum comfort and efficiency. This vent free natural gas fireplace includes the added safety bonus of an auto shut-off gas control system. The Napoleon GVF42N fireplace is EPA approved for overall maximum heating efficiency, which means you can achieve more heat with substantially less fuel. Napoleon delivers safety through functional products that have been both CSA and ANSI certified. Dimensions (in inches): 22 D x 42 W x 38 1/2 H. This Napoleon fireplace requires louvres or insets to complete installation. |
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Clingo Universal Hands Free Car Vent Mount 30329 $31.84 Hands free car vent mount. Works with any phone. Allows hands free viewing of calls texts or messages. Clips to any size vent. Adhesive free so it will not leave residue. Makes driving safer. 6 x 5 x 2.2 . Length: 5. Width: 2.3. Height: 6 |
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Monessen DIS Propane Vent Free Fireplace Insert $1449.9 This Monessen DIS Propane Vent Free Fireplace Insert is the perfect way to bring your existing fireplace to life again, without the hassle of making a real wood fire. This insert will fit most standard fireplaces with a minimum opening of 24 inches high and 33 inches wide. This insert features the Triple Play Burner System that produces 28,000 BTUs. This System includes: Deep ember bed, Charred Timber logs, removable unitized bottom louvers, thermostat blower (135 cfm), 18 inch flex line with on/off shut off valve and volcanic rock. |
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IBD Outoor Rooms GFVFMFTUP Granitech Quartzite Finished Classique Vent Free Garden Fireplace With Vent Free Gas Logs $4678.35 Granitech Finished Classique Vent Free Garden Fireplace ??Includes: Three Sided 6 High Extended Hearth Garden Fireplace Cabinet with Dress Out Band Classique Chase with Dress Out Band and Quartzite Granitech Finish? Logs Sold Separately. Granitech Unfinished Classique Vent Free Garden Fireplace Includes: ?Three Sided 6 High Extended Hearth Garden Fireplace Cabinet with Dress Out Band and Classique Chase with Dress Out Band? Logs Sold Separately. Fits In Areas And Applications Where Larger Fireplaces Cannot Fit. 18 Vent Free Log?Set Sold Separately. 22 Gauge Hot Dipped Galvanized Steel Substructure Welded Construction. Cast Refractory Herringbone Brick Liner. 1/2 Hardi Board Material (Approved For Exterior Use). Garden Fireplace Includes: Three Sided 6 ?High Extended Hearth Garden Fireplace Cabinet with Dress Out Band Classique Chase with Dress Out Band and Quartzite Granitech Finish (Available Unfinished). Vent Free Garden Arched Fireplace Can Easily Be Field Converted To A Vented Gas Fireplace Use 8 FMI Class A 1700 Woodburning Chimney. Warranty:?Limited Lifetime. Made In The USA. Garden Fireplace Dimension: 50 W x 70 H x 271/2 D. Firebox: Front Width:?27 W Back Width: 211/4 W Depth:?121/4 D 31/8 ?Set Back From Front. |
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GloWarm 503285 Procom MN300TBA Vent Free Heater $427.73 Builtin Oxygen Depletion System (ODS) for maximum safety. Diamond mesh front grill for added safety. 30 000 maximum BTU s. 99.9 EfficientAll of the heat stays in the room. Easy economical installation with no vent or chimney required. Fast continuous heat for only pennies an hour. No electricity required to light or operateensure reliable use even during power failures. Thermostat Control. Available in Natural Gas and Propane Gas. CSA design certified. Color: White. Size: 231/2 H x 265/8 W x 8 D. |
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24VFSPVC VFS Vent Free 24 in. Fireplace System Liquid $1088.1 Those of you looking for a tons of fireplace lots of convenient features and an affordable price will definitely be interested in the VFS Vent Free 24 in Natural Gas Fireplace System with Millivolt Control You can search high and low for a fireplace ... |
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24VFSNVC VFS Vent Free 24 in. Fireplace System with Millivolt Control Natural $1088.1 Those of you looking for a tons of fireplace lots of convenient features and an affordable price will definitely be interested in the VFS Vent Free 24 in Natural Gas Fireplace System with Millivolt Control You can search high and low for a fireplace ... |
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Ambient Technologies Variable Thermostat Controlled Air Blower For Vent Free CFX24 $163.8 This Ambient Technologies Variable Thermostat Controlled Air Blower is for use with the Ambient Technologies Chesapeake 24 Inch Vent Free System. This Blower System delivers 135 cfm. |
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Firegear 26-Inch Big Horn Vent Free Log Set Without Burner $211.5 This 11-piece vent free gas log set lives up to a big name. The Big Horn gas log set by Firegear introduces vent free technology and a natural look to your fireplace. Specially blended refractory materials promise years of enjoyment, and steel inserts help to reinforce each log. Air dried and hand painted, these gas logs provide the missing element in your fireplace. |
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Monessen BUF400 36-Inch Universal Vent-Free Firebox With Refractory Firebrick $412.2 The BUF Series Firebox by Monessen is a versatile vent free option for any design application. Zero clearance capabilities makes it possible to bring construction materials, such as wood or sheetrock, right up to the firebox for a clean, contemporary look. Vent free operation with no flue or hearth required and gas line knockouts available on either side make installation easy and economical. Radiant face design includes heat circulating air ducts that allow for installation of an optional blower to provide full environmental effect. Refractory firebrick and screen mesh curtains provide true fireplace appeal and the wide viewing area guarantees beautiful flame presentation. Monessen BUF Series Vent Free Fireboxes are CSA certified. Framing dimensions for BUF400 (in inches): 40 1/4 W x 20 3/4 D x 34 1/4 H. Viewing area dimensions (in inches): 36 W x 21 9/16 H. (776 sq. In. ) |
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Monessen BUF500 42-Inch Universal Vent-Free Firebox With Refractory Firebrick $495 The BUF Series Firebox by Monessen is a versatile vent free option for any design application. Zero clearance capabilities makes it possible to bring construction materials, such as wood or sheetrock, right up to the firebox for a clean, contemporary look. Vent free operation with no flue or hearth required and gas line knockouts available on either side make installation easy and economical. Radiant face design includes heat circulating air ducts that allow for installation of an optional blower to provide full environmental effect. Refractory firebrick and screen mesh curtains provide true fireplace appeal and the wide viewing area guarantees beautiful flame presentation. Monessen BUF Series Vent Free Fireboxes are CSA certified. Framing dimensions for Monessen BUF500 (in inches): 46 1/4 W x 20 3/4 D x 34 1/4 H. Viewing area dimensions (in inches): 42 W x 21 9/16 H. (906 sq. In. ) |


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