3D model of the AT solar thermal collector type 1. The type 1 is a batch heater. The batch heater design was based on Michael Reynolds’ DIY batch heater (see Earthship Volume 2: Systems and Components). A platform was added to allow 360 degrees horizontal rotation, aswell as a piston to allow 90 degrees vertical rotation. The pump that can add/remove oil into the piston for the heightening/lowering thereof can be made manually-operatable. The platform too is manually operated; ie the platform needs to be pushed by means of the yellow handlebar on the platform. The pin can be manually lifted/lowered to secure the platform once correctly aligned to the sun. The entire system is mostly intented to allow the batchheater to be set for a specific time of day (so as to not require continuous resetting during the day, as the sun turns from east to west). The batch heater can be set ie for a specific time of day when the owner of it usually takes a shower, does the dishes, … (depends on what the collector is used for). See the 'Purchasing_the_models' link at appropedia's AT_CAD_Team for additional information on the model