Greenhouse Ventilation

Ask ten allotment veterans about greenhouse fan vs vent opener and you will get ten different answers, usually delivered with the passion normally reserved for football rivalries. A greenhouse fan pushes or pulls air mechanically, using electricity to keep a constant current moving through the structure. A vent opener, by contrast, is a passive or … Read more

Here’s a scene most UK gardeners know too well: it’s half nine on a Tuesday morning, you’re stuck in a meeting or the school run, and back home your greenhouse is quietly turning into a pizza oven. By lunchtime it could be pushing 40°C behind that glass, and your tomatoes won’t thank you for it. … Read more

Ask any allotment veteran what kills more greenhouse crops than frost, and they’ll probably surprise you: it isn’t the cold, it’s stagnant, soggy air. A best greenhouse fan does a job that’s almost invisible until it stops happening — it keeps the atmosphere inside your glass or polycarbonate box moving, so heat doesn’t pool under … Read more

Here’s a scene every UK gardener knows too well: Tuesday morning, blue sky, you head off to work, and by lunchtime your greenhouse has quietly turned into a pizza oven. You come home to crispy tomato leaves and compost that’s baked dry. It happens fast — a closed glasshouse can climb 15-20°C above the outside … Read more