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SOLAR HEATER
my2cents0 • 174,990 views
just imagine rectangle black box with one hole at the bottom and one hole at the top. hot air goes up, so air flow will arise. can somebody explain me, why there are the cans?
just imagine rectangle black box with one hole at the bottom and one hole at the top. hot air goes up, so air flow will arise. can somebody explain me, why there are the cans?