Return-Stack Heaters

AGI’s low‑smoke return stack heaters provide proven frost protection for orchards, vineyards, and farms. Recognised by their distinctive chimney stack, these oil or diesel‑burning heaters have safeguarded crops for decades with cleaner combustion and dependable performance.

For maximum efficiency, pair return stack heaters with frost fans to boost hot air circulation and strengthen protection during extreme frost events or weak inversion layers.

Return-stack heaters specs:

• Heater reservoir capacity: 40 L
• Heat energy generated: ±40 kW
• Burn time (adjustable): 6–12 hours
• Construction: Stainless steel pot with hot-dip galvanised components
• Energy source: Diesel, oil, paraffin, kerosene, waste oil