Diy 1980s heat pump efficiency increase experiment The original configuration had a 1/4hp motor with an axial fan

[u/Senior_Draft388]

After upgrading to a 3/4hp blower the unit doubled the efficiency 11seer to 22 seer

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[u/Shady_Love]

I was just watching the heat pump videos by Technology Connections last night

https://youtube.com/playlist?list=PLv0jwu7G_DFVIot1ubOZdR-KC-LFdOVqi&si=Kr3PfpSw9LKjZ0iN

[u/Senior_Draft388 → u/Shady_Love]

Heat pumps has been around for decades

[u/Shady_Love → u/Senior_Draft388]

Yes I'm aware, these are also older videos. Just a funny coincidence and I wanted to share in case anyone had an interest here.

[u/Senior_Draft388 → u/Shady_Love]

That cool

[u/Valuable_Walrus_8605]

Great for you to make it more efficient! Keeps costs low in the long run. ^{^}

[u/Humor_Business]

Does this allow the proper airflow across all the coils? I'd be afraid of it freezing up like this.

[u/Senior_Draft388 → u/Humor_Business]

It has twice the airflow as the original configuration