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mejunkhound · 11-20-15, 04:42 AM

make me a big tank

How big a tank?
5000 btu/hr for 8 hrs = 20,000 btu = about $1.00 worth of electricity for resistance heat, only 30 cents for HP input.

You mentioned 55 gal bbl. About 500# of water. Say you can cool the water down to 75F during the day getting the heat out, heat it up to 125 F during off peak

That is 25,000 BTU; however, you have also cooled your other bbl down 50F, etc..
do you see where this discussion is headed?

BTW, go TXV, about 3X too big is still OK, esp if you find a cheap one. Forget cap tube unless just for 'playing around'. Crimps in tube wil work also.

11-20-15, 04:42 AM	#8
mejunkhound Apprentice EcoRenovator Join Date: Apr 2011 Location: PNW Posts: 197 Thanks: 0 Thanked 47 Times in 31 Posts	make me a big tank How big a tank? 5000 btu/hr for 8 hrs = 20,000 btu = about $1.00 worth of electricity for resistance heat, only 30 cents for HP input. You mentioned 55 gal bbl. About 500# of water. Say you can cool the water down to 75F during the day getting the heat out, heat it up to 125 F during off peak That is 25,000 BTU; however, you have also cooled your other bbl down 50F, etc.. do you see where this discussion is headed? BTW, go TXV, about 3X too big is still OK, esp if you find a cheap one. Forget cap tube unless just for 'playing around'. Crimps in tube wil work also.