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.

All products which burn gas and draw combustion air from the living space "take oxygen" from that space, (Gas ranges are vent-free units). The owners manuals on our products and your local code official will inform and instruct about the need for make up combustion air.

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.

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, 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.

Plaque (radiant) heater heats like the sun, it heats objects in the room. Better if area is poorly insulated like a garage. Blue flame heats the air in the room, A good room heater when used with a thermostat. No. Some states like California do not allow them. Check with your local building code official for the codes in your area. I rent an apartment in northern New Jersey. Last week, my landlady installed an "unvented gas heater" to my unit and I'm wondering if this thing is safe.

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.

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

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.

We recommend you use a mild soap to clean all the acrylic surface, such as dishwashing detergent. Do not use corrosive or bleach based products. Use of these products will damage your shower and void the guarantee. If the surface is scratched or scorched, please use 1200# sand paper to polish the spot, then polish with wet 2000# sand paper. The last step is to use polishing cream and soft cloth to burnish it.

is stated in the owner’s manual, care should be taken when using a heater. This includes using extreme caution when a heater is used by or near children or invalids, or whenever it is left operating and unattended. Heaters are used to produce heat and some models can be hot to the touch. So we strongly recommend to keep ALL heaters from the reach of your pets and children

There are various safety features are the portable heaters we offer. Please look for heaters that are approved by Underwriter Laboratories. As stated in the owner’s manual, certain safety proceduresstill needs to be followed when using heaters to reduce the risk of fire, electric shock, and injury to persons.

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.

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.

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 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.

All Broan heaters are provided with over heat protectors, which will shut the heater down if the internal temperature rises above preset limits.

Vent free does not require a flue while direct vent has a flue which must vent outside through a wall or through the roof. Direct vent unit also requires a fixed glass front while vent free unit prohibits a glass front.

Safe Indoor Air Quality. Extensive independent testing has verified that vent free gas appliances meet or exceed the nationally recognized guidelines for indoor air quality, even for the sensitive populations, such as children, pregnant women, and the elderly. Vent free products are tested by independent appliance testing laboratories to assure they comply with ANSI Z21.11.2, a standard established under the auspices of the American National Standards Institute.

Vent free gas logs produce one quart of water per hour on high. You can crack the damper to let it out the chimney. Most houses like the additional water, but it can become a problem in very well insulated houses. A de-humidifier will take care of it (needed less than 1% of the time). The hood is used if the mantle is too close and could overheat. Most of the time it is needed if the mantle is closer than 28" to the firebox opening. It also matters how far out the mantle extends.

Maintenance for the most part can be done yourself. Just good housekeeping! Take the logs off the burner. Take a brush (1-2" paint brush with all but 1/2" of the bristles taped up works good) and clean the burner ports. Clean the air intake. Clean everywhere that there is dust, pet hair, carpet fuzz, etc. There should be no soot on the burner at all. Make sure that nothing has changed with the set. Like extra logs or pine cones, or the logs positioned wrong.

Vent-free" gas log sets are designed for maximum efficiency and are easily installed to existing wood burning fireplaces or to approved universal fireplaces. All Martin Hearth & Heating log sets are CSA approved to allow you to close your fireplace damper for clean heat directly to your home. These appliances are equipped with an ODS or oxygen depletion sensor.

Natural gas and Propane produce water when burnt. Vent-free appliances are no different-- producing about 1 quart per hour. Normally, moist heat does not cause a problem. However, very small, tightly constructed homes may experience problems where appliances are oversized. You may need to provide mechanical ventilation if your home is extremely tight, has poor circulation or problems with mold or mildew. You might consider installing a direct vent fireplace, which produces dry heat.