The tested parameters included indoor temperature (the bathroom and heat preservation room), outside temperature, solar radiation intensity.
Sensor arrangement: indoor temperature sensor was settled (the bathroom, heat preservation room) at the height of 1.5 m from ground; outside temperature sensor was settled at height of 1.5m from ground, under the shadow and without wind.
The Solar radiation intensity measurement instrument was settled at 1.0 m from ground outside the window. Measuring instrument: the precision of 0.1 thermometer mercury, the solar radiation meter Temperature and solar radiation intensity was recorded hourly.