Solar-powered without solar panels
In Summer, close the blinds and curtains of your southern windows to reflect the heat from the sun back outside. In Winter, open ’em up to let the free heat in. Just keep in mind what the neighbors can see.
In Summer, close the blinds and curtains of your southern windows to reflect the heat from the sun back outside. In Winter, open ’em up to let the free heat in. Just keep in mind what the neighbors can see.