We've found these Bayliss Automatic Greenhouse Vent Openers to be the best on the market and are suitable vents for both wooden or aluminum windows and frames. With the two of the most important aspects of successful greenhouse growing being adequate ventilation and preventing excessive temperatures we are sure you will find these Autovents invaluable. Please note that although the XL Autovent will fit the vast majority of greenhouses, some models of Halls and Robinsons may require additional fixings. We also recommend the Bayliss MK7 Autovent for use on any Alton structure.
This unit can be simply clamped onto aluminium greenhouses without any drilling, or bolted on using existing holes or drilled holes • The unit is 28cm long and will lift a vent weighing up to 5.5kg, or a vent approximately 61cm x 76cm (24" x 30") • Opens approx 30cm • Supplier offers 2 year guarantee on replacement cylinders but they should last approximately 6-10 years • Additional fixings (not supplied) may be required for fitting to some Halls and Robinsons models
What The Experts Say...
"If you haven't already got automatic openers installed for your greenhouse windows, fit some straight away. Automatic openers work by wax within their cylinder expanding when it's hot, pushing a piston to open the window and contracting in cooler temperatures to close the window again. Worth the investment to free yourself from being controlled by the vagaries of British weather - no more trips to the greenhouse to open and close windows manually every time the weather changes!" Buyers' Guide, Garden News, 18 June 2008
This powerful 2.8kw electric heater is more than capable of heating most garden greenhouses and can be mounted in the ceiling or on the floor. It's long list of features include accurate thermostatic control and modes suited for spring, summer and winter. The extremely quiet high powered fan gives even heat distribution throughout the greenhouse.
• Accurate thermostatic control • Spring, summer and winter modes • Quiet operation • 2.8kw of power • Measures 32cm H, 22cm W and 41cm L • Generous 2.8m long flex
"This stainless steel heater can be used on the floor or even mounted on a ceiling to distribute heat evenly and effectively. Spring, summer and winter modes allow you to give exactly the right amount of heat. Comes with thermostatic control and makes little noise when in operation." 'Buyers' Guide - Greenhouse Heaters - We look at 10 of the best'. Garden News, 2 December 2008