Objective: To insulate your home and major appliances,

Which of the following solutions is more sound in terms of naive physics reasoning?

OPTIONS: [I] Have insulation blown into the rooms and tight spaces, replace older insulation, wrap your water heater with insulation, and weather strip the doors and windows.; [II] Have insulation blown into the walls and tight spaces, replace older insulation, wrap your water heater with insulation, and weather strip the doors and windows.;
[II]