Watch on YouTube: http://www.youtube.com/watch?v=r3-zuhcM_Ao
Once upon a time there was a young girl who rented a small 300-400 square foot house. Soon after moving in, she lost her job and stayed home all day watching cable TV, smoking cigarettes and cuddling with her teddy bear. When it started to snow she turned on her ventless space heater. The widows fogged up, the carpets became saturated, water began to drip from the ceilings and mold started to grow on the colder exterior north wall because north walls are generally 5 degrees colder an can permit dew point temperature. The landlord was very concerned and hired a mold expert to come to the home and clean up the surface mold. The mold company would not clean up the mold until the house moisture problems were solved. The now very concerned landlord employed a moisture expert to test, diagnose and evaluate the small homes condensation problems. The moisture expert concluded that the small home had high indoor humidity and very high CO2 (carbon dioxide) levels. He told the concerned landlord that the ventless heater must be removed and replaced with a vented heater or electric baseboard heat. Furthermore, he told the landlord that this very small house should have normal carbon dioxide levels between 400-800 PPM, and that the 4500 PPM carbon dioxide levels were rather high and may make occupants sleepy and drowsy. He explained that ventless heaters use up and deplete the O2 oxygen supply, especially if the living space is small. Additionally he stated that if the CO2 levels get higher, they can case Asphyxiation. Finally, he told the landlord that all ventless heaters are bad and should never be used indoors or in confined spaces because they generate high levels of CO2, water vapor, and sometimes even possible CO (carbon monoxide.). On the day of inspection, the carbon monoxide (CO) carbon monoxide levels were low, and the landlord was very thankful. The concerned landlord open the windows and call a furnace company to replace the ventless heater with a vented heater. The landlord continued to get his rent, the tenant felt better and got a job. THE END.