BUMPYROAD.
THIS IS AN RV FORUM. IT IS RIDICOLOUS TO BRING UP TOPICS AND SYSTEMS THAT ARE NOT RV RELATED. WHO CARES WHAT YOU HAVE DONE ON YOUR HOME SYSTEMS????? Doug
PS I was 22 forty years ago. 33 years ago in Texas I HAD a HP system in my new house and since there was NO Natural gas in my new Neighborhood, I had the 220 electric back up system and until the outside temps were below 28 degrees that HP kept my 2000 sq ft house very comfortable. Yes we had sub 35 degree temps all the time in winter. Also, I doubt anyone on this forum has 20 years of repairing, installing and troubleshooting and fixing RV HP's as me. I KNOW the parameters and what they can do on RV's.