Yes. They have an ODS (oxygen depletion sensor) included which shuts the heater off if the oxygen drops below a safe level. However, flammables should not be used or stored around gas appliances.

Answer: Vent free heaters may not be changed from one gas type to another. The American Gas Association/Canadian Standard Association certifies the unit according to the gas type used. Changing this type will change the certification as well as void the warrant and most of the time it is more expensive to convert the product than it is to buy a new unit.

Vent-free units when used as supplemental heating devices generally do not add any more water to a living space than the bathroom shower does in a normal day. Specifically, for every 1,000 Btus, the vent-free unit will create 1 ounce of moisture per hour.

Extremely safe. Vent free appliances have been sold in the USA since the 1960s and have an exceptional safety record! In fact, vent free fireplaces represent the fastest growing segment of the fireplace industry due to flexibility in installation. Each product must comply with a stringent National Safety Standard called ANSI Z21.11.2b.

YES! Since 1980, vent-free gas heating appliances have been equipped with a unique safety pilot system called an oxygen depletion sensor, or ODS. The ODS is the proven technological innovation that revolutionized the safety of vent-free gas heating appliances. In 1995, the Vent-Free Gas Products Alliance of the Gas Appliance Manufacturer Association (GAMA) commissioned a study on indoor air quality as it relates to vent-free gas heating products in the home.

Yes, and they have been used for many years now. Vent free fireplaces come equipped with an oxygen depletion sensor, which will detect any unsafe levels of carbon monoxide and shut the system down. These types of gas logs are also approached by the Consumer Product Safety Commission.

Vent-free Gas Stoves are an effective supplemental heat source. Due to their high efficiency (99.9%), no venting is required. And, yes, a vent-free gas stove is safe. A primary safety feature is an effective, time-tested devise called an Oxygen Depletion Sensor system.

Yes. The AdTec tankless water heater meets the stringent safety requirements of UL and is equipped with thermal cutouts which will disconnect the heater from power if any malfunction occurs.

The national code prohibits the use of vent free fireplaces in any bedroom or bathroom. Vent free fireplaces are also restricted in New York City, California, Canada, and above 4,500 ft elevations. Check local codes for installation guidelines for vent free fireplaces. Please check www.ventfree.org for more information.

The top roof vents used in the 1950’s looked more like smokestacks, and are still available at better home centers, hardware stores, and plumbing/heating supply houses. They have both the 4" round capped ones, usually used on the heater vents, and the long oval one, usually used on the refer's. Both have storm collars, made of aluminum and look much like the ones from the 1950’s, only now made in Mexico.

V-300 and Fold-A-Vent product lines have 13.5 square inches per lineal foot net free vent area (NFVA).

Yes and no. Outdoor models are designed for well ventilated places. Well ventilated does not mean you have a bit of a draft under a crack in the door. In a garage with a window or garage door open, yes you can safely use any of the 12-IR -> 24-IR range of heaters The DESA range of infra-red heaters is the way to go for indoor infra-red heat. These units are designed for indoor use and have safety mechanisms built in to protect you.

The ridge vent should not be used with other roof mounted or gable end vents. They can disrupt the air flow through the attic. A properly setup ridge/soffit vent system does not need to have power roof vents to help move hot air out of the attic. Whole house fans work great with a ridge/soffit vent system. We do not consider them the same thing as the power roof vents.

Take the square footage of house under roof X .48 divide this number by 20 (for V-600 products), by 17 (for V-400E or X-5) or by 13.5 (for V-300 or Fold-A-Vent products) this will give the lineal feet of product needed to meet a 1/150 vent ratio. If you are only going for a 1/300 (code minimum) vent ratio divide the above result by two. REMEMBER there MUST be an equal amount of soffit vent (in NFVA) to balance the ridge vent.

Vent-free logs can be burned in a bedroom as long as they do not exceed 10,000 BTU maximum input. Check local building codes.

e are three different terms that represent three different ways of 'venting' a gas fireplace, that is, to supply combustion air to the fireplace and evacuate combustion gases out of the house. In Australia, the term 'open flue' is commonly used instead of 'B-vent'. B-vent means a traditional type 'B', 4' (102mm) rigid pipe used to evacuate combustion gases. It can also be a certified flexible aluminium liner of the same diameter, inserted into an existing masonry chimney or a prefab chimney.

Even friends (and the space they can offer) have their limits. Can you be sure everything is 100% safe and accessible? And how secure, clean and dry is your garage? Will everything fit in? (How about your car?!)

Answer: Most openers now come with safety systems to stop the door from closing if something is in the way of the door. It is better to have a new opener with newer technology. Answer: Only in case of emergency would we recommend manually raising the door. In case of an emergency, two to three of you neighbors' could supply the needed lifting force. It never hurts to have more help then truly needed when this task has to be performed. A Answer: -The photo eyes may need alignment.

We've all heard stories of pressure cookers "blowing up" or the "geyser of split peas soup" that is a permanent ceiling adornment. Luckily, most of us have never experienced these urban legends first hand. On weighted top pressure cookers you should get in the habit of checking the vent pipe BEFORE cooking. Hold the lid to the light and looking through the little hole to make sure it is clear.

Some people may be surprised to learn that vent-free appliances produce water. This occurs naturally by burning a combination of gas and air. The water is in the form of a vapor rather than a liquid. You can't see it with your eyes. During cold months of the year, the relative humidity - the percentage of water vapor in the air - is low. You've probably experienced a scratchy throat caused by the dryness inside a home during the winter.

Vent free fireplaces are fireplaces that do not require any type of vent system. Instead, they are designed to burn clean and the combustion by-products allowed to flow into the room the fireplace is located in. Stringent requirements ensure that these fireplaces not only burn cleanly, but that they are located in rooms of sufficient size to ensure an adequate supply of fresh air is always available for the combustion process.

A Vent Free fireplace does not use a chimney or flue pipe. These fireplaces burn extremely clean so the byproducts of combustion can be vented back into the room. This eliminates the need for a chimney resulting in lower installation costs. Because they do not send hot flue gases up the chimney, these fireplaces are extremely heat-efficient. All models feature an Oxygen Depletion Sensor for maximum safety. Back to Top

Vent-free fireplaces operate on natural or propane gas. Most models require no electricity. The flame is fueled by natural or propane gas through a permanent line that is connected to a blue-flame/yellow-flame burner or ceramic plaque burner within the heating appliance. Vent-free gas fireplace operates without a chimney, flue or vent, so you can install one just about anywhere.

Martin’s vent-free ISD insert has been approved to be installed to existing masonry or factory-built fireplaces (which must be approved for inserts by its manufacturer). It does not require any type of vent and is best suited for those who desire vent-free and want a blower. The unit comes with optional surrounds and can be installed to fireplaces that have sustained cosmetic damage. Martin Hearth & Heating inserts are CSA approved and equipped with an ODS or oxygen depletion sensor.

Hoods are designed to deflect heat from wood such as a mantel. Check the installation instructions for your log sets to see if the mantel height requires you to install a hood.

The heater is an optional accessory that can be fitted into the waterbed. Among its therapeutic benefits include enhanced blood circulation and relaxing of the muscles. In the tropics, it is well suited for those who experience chronic back problems, recovering from strokes and paralyzed patients. The heater is safe as it is double insulated, uses very little power with a low wattage, installed on the waterbed decking under the liner and is specially designed for use in waterbeds.