Many of us are in the dark when it comes to understanding what a gas valve for furnace is. They aren't that difficult to understand, but we often get it wrong and end up damaging our furnace instead of fixing it. When it comes to having your furnace fixed, you want to make sure that you hire the correct company or person to do the job for you, not a stranger with no experience doing the job you need them to do.
Before going into the details of what a gas valve for furnace is, you must first understand what a gas line is and what this type of appliance does to get into a furnace to put on the furnace gas valve. If you know anything about how your furnace works then you should already have a pretty good idea what a gas valve for furnace is.
A furnace gas valve is a system that connects the gas to the furnace itself. It's purpose is to control the amount of gas flow into the furnace so that you can regulate the temperature inside. It works by opening and closing a set of valves when the furnace reaches a certain level of heat in the air. The reason why the furnace runs at a certain temperature is because the gas goes through a burner to burn and produce the heat, while the air has an airtight seal to keep the furnace cool in the closed system.
The gas valve for furnace is used to adjust the amount of fuel going in and out of the furnace. Sometimes it can be too much fuel or too little, which can cause a furnace to overheat and start a fire. Another reason it may need to be adjusted is if the temperature of the air in the furnace isn't right. This can be fixed by turning the valve off until the air is right or adjusting the venting system to get more air in and less outside of the furnace.
There are two different types of the gas valve for furnace and they're used in different situations. The one used in open systems is called the pilot valve. In this system you can turn the pilot valve on and off in order to control the amount of gas flow into the furnace.
The other type of gas valve for furnace is called a closed system gas valve. In this type of system the pilot valve stays closed while the other one remains open. The purpose of this is to allow the gas in the furnace to get in and out of the furnace as needed without causing a fire or having too much heat or air coming out of the furnace in the form of cool air.