This is the reading in the main living room with no windows open, reverse-cycle heating and in a well…

This is the reading in the main living room with no windows open, reverse-cycle heating and in a well insulated home. (Upper-wall vents.) 5 people. It’s very cold and windy outside. I do have one window open (tilt) at either end of the house, but only a few cm. https://t.co/B50kBDBIoF