Quote:
Originally Posted by Long & Winding road
They are correct .... The best thing you can do is "heat management".
Dont let the inside get above 80 deg if you can help it. Takes a long time to suck the heat out of the furniture and inside walls (esp if in full sun).
Use the refective bubble in all the windows that you can.... esp the side that is facing the sun.
I had "clear" (Well 15% so almost clear) ceramic window tint installled on ALL my windows (the factory tint is just color.... no UV rejection - so this ceramic is a awesome). This helped greatly and we are not sitting in the dark with the windows covered with reflective bubbles all the time.
Check your return air duct inside the AC unit. Mine was sucking hot air on the cold side (do a search on this - lots of threads on this subject). Plus I insulated the AC unit on the roof (plus AC lines) and moved my Thermister probe up about two inches.
I went from 65 deg output temp (at ac dump vents and roof vents) to 45 deg!!! It blows that temp no matter what the outside temp is. So I can get in the mid to low 70's (95 deg outside) and even high 60's if its only like 88 deg (or less) outside!!
So reject heat first then make your exsisting AC unit work better before you add any more AC units. You might be pleased like I was (but My RV is only 27 foot so one AC works fine for me).
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An example of what you can do to manage the hot air!!!
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