hello
its called a chill chaser, i installed one on my rig. had to replace control box and add switch to thermo. air won't feel warm but give it time. Fan will only run on low.
i didn't think it was working until i stuck my finger on the element, not recomended.
overall i am very happy with it, my furnace is noisey and my cat hates it.
for those cool nights it works very well.
hope your install comes out great.
Ed 2017 freedom elite 29fe.
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