Replacing auto air eliminator


Old 03-17-07, 10:10 AM
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Replacing auto air eliminator

I'd like to replace my automatic air eliminator on top of my expansion tank. It's pretty corroded on top. What is the procedure on replacement?

Thanks in advance. Nice place you have here!

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Old 03-17-07, 12:42 PM
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If you have a small screw in type then you have to shut off the water supply and lower the pressure in the furnace. You can open up a drain on the furnace. Once the water stops coming out, shut the drain and change the air vent(or if you are worried, you can leave the drain on and change the air vent so there isn't a chance of water being sprayed out). Oh yeah, its best in your case to have the furnace fairly cool, under 115degrees, just in case something happens so you won't get burned. Put tephlon tape on the air vent.

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