Scribble plan to practical success. The pump sends water around 30 metres of pipe in the greenhouse ceiling & back into the side butts.This slowly heats up the water during the day.This has two uses; cooling the greenhouse down on hot days & releasing ridual heat during the night
Thermal mass properties
Thermal mass properties
Material Thermal mass (volumetric heat capacity, KJ/m³.k)
Water 4186
Concrete 2060
Sandstone 1800
Compressed earth blocks 1740
