Provided herein are systems and methods directed to using {HEAD ~ renewable energy sources} with {TAIL ~ hot water heating systems} 
with
Provided herein are systems and methods directed to using { HEAD ~ renewable energy sources } with { TAIL ~ hot water heating systems }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL