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- Wed Nov 06, 2013 2:50 am
- Forum: Energy
- Topic: DIY Solar Air Heating Panel w/pics!
- Replies: 17
- Views: 111573
Re: DIY Solar Air Heating Panel w/pics!
The soda cans do restrict the airflow, allowing the air to be heated longer. They also add a small degree of thermal mass, but mostly to keep the air from just blowing through without being warmed. Most pop can heaters actually use the cans as the collector tubes. My design adds the downspout mater...