Originally Posted By: bnelson This post was automatically imported from our archived forum.
Both Majestic gaslog fireplaces in the home I inspected yesterday had condensation inside the glass that didn’t burn off after about 7 minutes of operation. I haven’t seen this before and didn’t know what to make of it? Is it a concern, and can you explain the cause?
Originally Posted By: rsummers This post was automatically imported from our archived forum.
Brandon it has been my experience with gas fire places that most of them get that moisture on them from the moisture burning off the gas and out of the combustion air at times. As the fire place heats up the moisture goes away Ive installed 100s of heat n glow and other brands and it almost always happened no matter LP or Natural gas. A good thing to look for when inspecting gas fire places is the to make sure the ember materials do not interfere with the burner and if the fire place is not over drafting.
Originally Posted By: dvalley This post was automatically imported from our archived forum.
I?ll bet that that fireplace is a vent-free fireplace. Those energy efficient fireplaces keep all of the heat inside the firebox area since they do not require a chimney, but they pump vast quantities of water vapor into your home as they burn. Water is a by-product of the combustion of Natural or LPG gas.
For every 100,000 btu’s of gas burned, approximately 1.5 gallons of water is created and is added to the air inside your home. As the outside air temperature rises, so does the surface temperature of the glass. So when the fireplace is started, the hot temperature inside the firebox starts to warm up and condensate on the cool glass.
Don't consider this to be a problem or safety issue!
Originally Posted By: jpeck This post was automatically imported from our archived forum.
dvalley wrote:
I?ll bet that that fireplace is a vent-free fireplace.
It is not 'vent free', it "vents" into the house.
Remember why unvented (venting into the house) gas heaters were outlawed?
Yeah, people died.
NOW, though, in our infinite wisdom, we can have unvented gas heater (called "ventless" today), NOT because they are any safer, BUT because we put a safety label on them which says (to the effect of) "Do not use without adequate ventilation, Open all doors and windows".
Yeah, right, I'm using this to HEAT the house, why would I want to COOL the house by opening the doors and windows?
