Where is the best place to have a room thermostat in an 'upside down' house? The 3 bedrooms, bathroom and back door to garden are downstairs. The lounge, kitchen/diner and entrance hallway are upstairs. The room thermostat is upstairs in the lounge. The problem is that downstairs bedrooms remain cold when the lounge gets to a comfortable temperature. Does it make more sense to move the thermostat downstairs? Trying to control the overall house temperature by turning up the downstairs radiators and turning down the upstairs ones means a cool lounge and an upset missus lol.