A few weeks ago, I installed a $99 solar vent purchased online. The 1000CFH pumping speed does not sound like much but it keeps the inside dome temperature noticeably cooler. From a mirror temp vs ambient measurement, it has helped approx 1degC. Without the vent, I would start at 4degC but now it is typically 3degC. Also, the light humming sound should deter the bees next season from building nests inside. They tend to build them at the top where the vent is. Yesterday I caulked and painted everything, good for another year.
Regards,
Steve
Regards,
Steve
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