January 12, 2020 - This is not best practice. Non-flue/ventless gas heaters are illegal in a number of places because of the risk of · carbon monoxide poisoning. Burning natural gas is also great at making your home damp.

May 26, 2007 - They are fine if used as intended but can cause a lot of problems if used inappropriately. I know that heater companies are marketing ventless products for garages. Some people may even have had some sucesss with them. I never have. A "for real" unit heater or wall furnace that includes a direct ...

June 13, 2016 - Example: if you have 20,000 btu ventless heater used in a room sized for combustion air, it meets the listing of the appliance. I’d suggest more area for combustion air supply to be safe. Yes, totally agree that gas cook tops & oven produce way more CO2 but there listing says the same thing as the room heaters.

March 25, 2024 - Many people will use these appliances to heat up their basement or three-season room while entertaining. This is a perfect example of how to properly use your ventless gas heater. Improper use would include running the heater while you are not paying attention to it, such as while you are sleeping or if you leave the house.

Vent-free propane heaters, while rated for indoor use, should always be utilized as a supplement to your regular heating system and not as the primary heat source. There have been instances where individuals had three or four of these "ventless" ...

October 1, 2014 - Vent-free gas heating appliances have compiled an outstanding safety record in millions of American homes. That’s because, since 1980, vent-free gas products have been equipped with a unique safety pilot system called an Oxygen Detection Safety-Pilot, or ODS.

Don’t require an expensive vent pipe or much in the way of installation cost. They’re efficient. These attributes can make them attractive solutions for many homeowners, but make no mistake, they are dangerous. Even with careful maintenance and followed recommendations for safe usage, Unvented ...

CPSC warns anyone using an unvented gas space heater to keep the room well-ventilated, and at first sign of a headache, dizziness, or nausea to turn off the appliance and open a window or door to see if the symptoms subside.

November 3, 2018 - No space occupied by people or animals should be heated by a ventless heater unless there are huge holes in the walls. Sure, there will be all kinds of people that have used them for decades & were OK, but there's just too much risk of something going wrong where the result will probably be death.

October 22, 2024 - Oxygen Depletion Sensors (ODS) are also essential safety features in ventless gas fireplaces. These sensors automatically shut off the unit if the oxygen level in the room drops too low. This helps prevent the buildup of harmful gases. Pictured: Empire Boulevard 72" Intermittent Pilot With Thermostat Variable Remote Control, Natural Gas Vent Free Linear Fireplace

July 10, 2024 - Safety Features: Modern vent-free heaters are equipped with safety features like oxygen depletion sensors (ODS) and carbon monoxide detectors, which help prevent potential hazards related to gas heating.

July 1, 1997 - Alliance spokesperson Mary Carson told JLC the study showed that “vent-free appliances have been tested under all kinds of circumstances, and the air quality has matched all of the recommended standards.” In fact, however, early versions ...

October 30, 2007 - They're inexpensive, can be located almost anywhere in a house, don't require an expensive vent pipe or much in the way of installation cost, and they're efficient. They're also safe, supposedly. Since 1980, all ventless heaters must have an ...

The Truth About Vent Free Gas Heaters · Millions of people worldwide are enjoying the benefits of heating their living spaces with vent-free gas heaters, logs, fireplaces, and stoves

Answer (1 of 5): IF a furnace is combusting properly in a home with normal leakage there is generally no problem. A typical furnace may only be putting out 10 ppm of carbon monoxide.

January 23, 2023 - When it comes to using ventless gas heating in your home, safety should always be the priority. Make sure you follow the manufacturer’s instructions and maintain the system properly to reduce any risks associated with its use.

November 21, 2012 - My mother-in law has a ventless natural gas heater on her enclosed porch, which was installed by her late husband. Any time I visit, I am instantly hit with that "combustion byproducts" smell throughout her house (apparently she cannot smell it). Originally I told her that I was very much against this installation, but she continues to use it.

This erratic flame fails to heat the thermocouple completely resulting in a drop in the millivolts produced and the gas valve shuts off the gas supply to the heater. There is no solution to solve this complaint. If your home is above 4500 feet you may need to look into appliances that do not require an ODS. What is the difference between vented and ventless heating? Vented heating requires ventilation to the outside, either through piping or a damper in an existing fireplace. Both types of heating are safe provided the specific unit has been certified and installed according to the manufacturer’s instructions.

I ran a gas line out to my GH 8*12. Going to use a bubble cover. I have electric heat now, 4500 total base board heat, extremely expensive last winter.Would like to install a ventless heater, for extreme cold only. Is this a NO No because of co2. These heaters are less then $200, A vented one is $60...