Thermostatically controlled ventilator for bee hives, draws air in from hive entrance, up through and out the top, and exhausts stale humid air out via the vents in ventilator. Weighs less then 10 lbs and takes less than 10 minutes to set up. Fits under top cover. (Remove and discard inner cover)

Instead of your bees using their energy to fan, they can be busy hauling in nectar, reducing the stress and increasing honey production and pollination. The exhausted air helps bees to orient to there correct hive.

Bee Cool Ventilator's
Official Site:

2502 Greenbush Rd North
Ferrisburg, Vermont 05473
Phone: 802-425-7151
Fax: 802-329-2007

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This disease of honeybees is the most common brood disease found in most areas. Caused by the fungus Ascosphaera apis. Chalkbrood is most common in colonies which are stressed by factors such as humid weather, low colony population, American foulbrood, or mite infestation, poor nutrition, and poor hive management. Picture

Treatment is very limited, there are no medications. Best treatment consists of dealing with stress factors that the colony is dealing with.

Cleaning behavior of the workers is maybe only second or third to good ventilation and hive population, to resist chalkbrood.

With weather extremes (cold clustering and heat fanning), the brood may be left unattended, especially when nurse bee numbers become insufficient to attend to duties. Most often the first larvae affected are those that may be unattended regularly around the edges of the brood where the brood temperature may not be consistent.



1.    Destroy chalkbrood and American foulbrood contaminated combs.

2.    Regular requeening.

3.    Add bees to strengthen hives.

4.    Good hive management.

5.    Provide extra good ventilation to remove humidity and minimize temperature extremes, this to will strengthen hives.


Some bee keepers are getting up to 50% more honey on top of stronger & healthier hives going in to the winter!!.

Bee Cool a solar powered ventilator is inserted under standard top cover. And the built in thermostat turns a fan on powered by Solar panel or AC then draws the air up through hive and out the top of ventilator through the built in vents. 


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