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On most gas fireplaces there are two safeties, that if working properly, will keep the gas from running under the described conditions. One is a 30mv thermocouple that will hold in a pilot operator (similar to a water heater setup). The second is usually a 750mv (0.75 volts) generator that provides the power to open the main gas valve operator. If there is no flame present, there will be no power to "open" either of these. lc

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Q: If the pilot light goes out on a gas fireplace does the gas keep running?
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How do you keep your pilot light from going out on your gas fireplace As soon as switch it to the on position it goes out?

Check your instructions, Usually you have to keep it on pilot mode for 30 seconds then you should be able to turn it to on without the pilot flame going out.


If a pilot light goes out in a gas water heater does the gas keep running?

No because water heaters have a safety valves and when the pilot light goes out the safety valve shuts off the gas


Where is the thermo coupler?

At pilot light, where pilot light flame goes directly onto thermo coupler.


How do you repair a gas fireplace?

Replace the thermocouple. The skinny copper line that goes from the gas valve to the pilot and senses when it is lit.


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When pilot light goes out on a boiler is gas escaping?

No. The pilot valve is closed when no flame is sensed by the thermocouple.


A guy goes into a cabin with no electricity. What does he light first. The candle the fireplace or the wooden stove?

The match


If a gas fireplace is on and the electricity goes out will the fireplace continue to work?

It really all depends on the type of Fireplace you have. Fireplaces usually run on a pilot with a thermocouple or thermopile. These produce their own milivolts to run the gas valve. These type of fireplaces do not need power to ignite. If the fireplace's on/off switch is a remote that runs off of batteries or is a switch on the faceplate of the fireplace, then this fireplace should work with no power. Most fireplaces have a blower that circulates the warm air it generates. This fan would be running on 120v from the street and would not work when the power goes out. You may still have a flame on, but all the heat it generates is going out the stack. Other fireplaces have no fan and are mainly for looks. You may have a fireplace that is dependent on the 120volts and will do nothing. Check the operation manual on your fireplace.


What is the risk of an explosion if pilot light on water heater goes out?

When pilot light goes out, gas flows out of the pilot light nozzle. If out has continued for a long time, a gas cloud can develop around the furnace. When you go to light the pilot light, you'll ignite this gas cloud and make a big fire ball. If your basement is drafty, you might never get a huge cloud of gas hovering around your furnace. When you notice that your pilot light is out, you should shut off the gas to the furnace and allow any stray gas to dissipate before you turn the gas back on and light the pilot light. alliedallcityinc.com


What is a water heater thermal coupler?

Thermocouple? It is what keeps the pilot light lit. It is a small tube that runs from the pilot light to the control valve. The tube is made from two types of metal that when heated produce a small electrical current that keeps the gas valve open. Thermocouple goes bad the pilot light goes out and no gas can get into the house.


What are the uses of a thermocouple?

The thermocouple senses when your pilot light is on and lets the gas regulator open. If the pilot goes out the regulator cannot open.


Would you smell gas if your pilot light on furnace is out?

modern heaters have a thermocouple that would shut off gas supply if the pilot goes out.