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Box Vents

Traditional Cast Iron Greenhouse Box Vents

Traditional cast iron box vents are an elegant ventilation solution designed to be built directly into the brick base of your greenhouse. They are specifically designed to support consistent, healthy airflow at lower levels.

Low-Level Airflow & Cold Frame Heating

These vents are highly practical and are most frequently utilised where cold frames are built abutting the main greenhouse structure. 

By installing box vents in the adjoining base wall, it enables warm air from the heated greenhouse to flow naturally into the cold frames. This creates a perfect micro-climate to protect young plants as they harden off.

Beyond their functional benefits for airflow and heat transfer, these traditional cast iron vents add a beautiful, authentic architectural detail to the base of any classic glasshouse.

Looking to improve the low-level ventilation of your glasshouse or cold frames? Get in touch with our team today.