autocirc pump under one of the sinksa good idea? no room anywhere else for water heater and all pipes and water heater are insulated.
The best solution is to build a room around the heater if possible Insulate the walls and roofMake sure that there is at least a 4 inch air space between the insulation and the underside of the roofThis is requires for attic ventilationBe sure to have a doorway large enough to remove the water heaterMake an opening in the floor to the room below and install a floor vent in the water room and a ceiling vent in the room belowCheck local building regulations and codesGood Luck.
Al3+ has no unpaired it has the same electron configuration as Noble Gas Neon Cl- also has no unpaired it has the same configuration as noble gas ArgonUsually noble gas configurations have no unpaired electrons.