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minimising the risk of die back and disease
optimizing energy efficiency
And the Sunbubble is not just for your plants
P - Phosphorus
Remove the Autovent unit and fixings from its box
Bayliss XL Greenhouse Window Opener garden watering minimising the risk of dieThis Bayliss XL is an extremely reliable automatic vent opener. The opener is activated by a stainless steel cylinder containing a mineral wax which expands with heat; this pushes a piston causing the vent to open. As the temperature falls the wax contracts and a strong stainless steel spring closes the opener. For roof vents weighing up to 12lbs, approx. 30" x 24" (76cm x 61cm). Can be clamped onto aluminium greenhouses no need for any drilling. If a
