Sort by time | Sort by thread (beta)
Link to this comment:
Share to:
Loading...
- Your queue is empty. Add videos to your queue using this button:
or sign in to load a different list.
Loading...Saving...
its nice to see you useing the more efficent solar thermal or photo thermal effect.
i am not sure if those are evacuative tube thermal collectors or if they are non evacuative.. evacuative is better! more insulation less loss makes a big difference!
OrganicDrew 4 years ago