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If you're considering a vent-free gas appliance, you should first read these excerpts from letters written by vent-free owners, downloaded from the Internet. We've edited out the names of specific manufacturers and retailers wherever they appeared in the original text .
This all stemmed from a ventless gas fireplace we installed in our basement. Three months after it was installed my daughter had her first seizure. Husband began having severe headaches, trembling, memory loss, and numerous other ailments. Neurologists diagnosed daughter as epileptic!!!!! They now know they were wrong.
We have been through it all!!! If anyone knows about CO, it's me and family. I have found a support group based in the United Kingdom that is helping us deal with this mess. And we are in search of other people who need our help. We are also trying to find a way to inform the public about this silent killer. Would you be able to help us in any way? Your concern could save a life. We have had a forensic scientist in our home doing tests on fireplace, and the final result was determined that you cannot put a combustible gas in an airtight home and not vent it. I have done much research on this situation and talked to toxologists, chemists, and other specialists, and not one of them can believe we are still alive, they are all behind us all the way. I'll be waiting to hear from you. Thanks, Kim Letter #2: Headaches, Odor, Unacceptable CO Levels Date: Monday, March 30, 1998 23:38:16 We are a young couple with four children and live in a small community in Ohio. In 1996, we built a new home and moved in in late October. In November, we decided to try out our new vent free gas fireplace. Neither myself nor my husband are familiar with gas appliances, so we called the owner of **RETAILER** Fireplace Sales. **RETAILER** is where we bought the unit. He had what he called a startup package for around $40. We were surprised at the charge since nothing was mentioned at the time of the sale, however we decided it would be best to know how to use it properly. We asked the representative of **RETAILER** about using a CO detector. He told us they really aren't necessary because the unit has a built in sensor that will shut itself off if the level gets too high. He also told us to let the unit burn for 4 to 5 hours to get the initial smell and burn off from the logs. We did this, but still noticed an odor even after 10-12 hours. We called **RETAILER** again and were told to burn the unit for 100 hours. This seemed extremely long, but we did this over a series of 2 months. In early January, we were still experiencing the odor and also seemed to notice a listlessness in our children, dizziness and sometimes headaches, while running the unit. At this time we still did not have a CO detector, so we have no idea how high the reading got at this point. We finally decided to go out and buy a CO detector. Within half an hour of turning the unit on the warning alarm sounded. We called **RETAILER** again and now he says that these detectors warn you way before there is a problem, so he still says we do not have a problem. We decided to buy another one and have one on the first and second floors. The upstairs would alarm within half an hour and the downstairs within 2-1/2 hours. Again, we contacted **RETAILER** and he told us the CO detectors we bought are too sensitive and to call the **Manufacturer**, to see what they recommend. They recommended a different brand with a digital display. So, we go out and buy our third CO detector. We now have two different
brands of CO detectors in a loft area overlooking our great room.
The great room measures 17x20 and has a 17 foot cathedral ceiling
and this is where the vent free fireplace is located. The great
room is also open to a kitchen/dining room and a 2-story entrance.
So, it is a very roomy and open area. The following is an example
of one days CO level readings: 7:50 am 0 Turned fireplace
on
On another day of recording
the readings, we got the following results:
He also told us he was "red flagging" the unit, which he explained to mean that he had checked out all other possible sources of CO and determined the cause to be the vent free gas fireplace. This would let the gas company off the hook if something would happen to any of us. Throughout this whole process we had over 30 phone calls to **Manufacturer** and **RETAILER**. **RETAILER** was not willing to do anything except tell us to talk to the manufacturer. **Manufacturer** did try replacing the logs, they tried replacing the whole guts of the unit and the logs. The old unit was then to be sent back for testing. **Manufacturer** instructed **RETAILER** to install the new burner and logs and return the old unit. I checked on the results of this and every time I was told that they had not received the unit from **RETAILER**. They also tried new brick panels too. We still got the same results and every time they sent something new we had to go through the initial burn off process again. Finally, after one year of frustration, **Manufacturer** suggested we try something new called a catalytic converter unit. They were going to send out technicians to check out the other unit and install this new catalytic converter unit. Well, here's another problem. We have the old unit enclosed in a brick front that goes all of 17' in height. I do not want to have to go through the expense and the mess of having the old one cut out and then the new one put in and still have the possibility of having problems because it would still be an unvented unit. We have done too much research in the meantime and know that we want nothing but a vented unit that has a vertical pipe running all the way up and through the roof. We only wish we knew all we do now before we started building. We are going to go through the expense and the mess and have this unit installed, but we want nothing to do with any gas appliance that is unvented. We have since this time talked to several people in fireplace sales and gas appliance installation and none of them are recommending the vent free units. We sure would not recommend one. We only hope that this information may persuade a person who is thinking of buying a vent free unit. Please think twice about it because we have also had moisture problems as well. Which is a totally different story.
Letter #3: Soot All Over The House Date: Thursday, October 14, 1999 Hello, Found your webpage..and was so thrilled..have some questions.. We purchased a vent-free fireplace from a local distributor 2 yrs ago..and its been nothing but a nightmare...soot, soot and more soot. I have been told its the fact that its vent-free, or its the manufacturer..which is **MANUFACTURER**...whatever...they have not been able to fix the problem..so we have a beautiful fireplace..I won't use, because it ruins the walls, curtains, etc. We have decided the only solution to our problem is to go with a vented fireplace, but will not buy from the same folks, and very skeptical about buying thru a place like Lowes, etc. This can be a costly addition..and don't want to have to go thru this repeatedlly.. Our source of fuel is propane..we also use this with our furnace. We have decided we better go to a vented fireplace, so am looking for suggestions. The fireplace we have now says..max. 22, 000 btu..if that will help with size, etc. I would appreciate your assistance. Thank You. Jean Letter #4: Condensation Nightmare Date: Monday, May 15, 2000 We could contribute a letter about the no-vent wall gas heaters. Despite a science background, I failed to consider the water production from burning propane when I left the (installed by builder) gas heater on (low) in a mountain cabin during winter months to thwart freezing and supplement electric units. Well the pipes didn't freeze, but all windows had enormous ice deposits along their base and sides from the thaw/drip/freeze of condensed combustion water. This damaged "dry" wall around the windows, cracked a large picture window (several hundred $ repair), and required me to strip and refinish water-damaged sills. Even worse, the moisture condensed on the underside of the (poorly designed) sheet metal roof, whence it melted in spring to anoint the upstairs ceilings and floors with dripping "dry" wall coatings and stains. This led to the belated recognition of the need for roof rebuilding (couple kilobucks) to help prevent future condensation, and the epiphany that non-vented gas heaters are bad for the house's health even if acceptable for the occupants'. While pleased with myself for tracing the problem to the heater (I calculated how much water would be produced by the amount of propane consumed that winter while laying awake worrying about the demise of the house), I sure wish someone had educated me of the hazards beforehand. Frank Symington To read about how much CO2 a vent-free fireplace exhausts into the breathing space, click here.
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