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Originally Posted by BrianH
Here is another problem with using a dehumidifier ... the evapourator in my is aluminum (I am pretty sure). My blocks are copper. Will corrosion be a problem with these setup?
If so, how do we prevent it or slow it down? Will the anti-freeze help a lot? If so, what type of anti-freeze should we use? What water to anti-freeze ratio should we be aiming for? May the aluminum coils can be coated with something to prevent corrosion?
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In the HVAC industry we use brass dielectric unions between dissimilar metals. But for galvanic corrosion to exist, two dissimilar metals must be in contact with a flow from the anodic to the cathodic metal. Since there is vinyl tubing separating the radiator from the block, that's not an issue but you do have to deal with the evaporator coil itself, which is copper piping wrapped with aluminum fins. I'm looking in to anti-galvanic additives for coolant, will post later.