Knowledge base

Frost-protection knowledge

Practical articles and guides on spring frost protection — written for growers, in plain language. Our aim is to give you real, usable knowledge for your decisions.

Articles

Latest material

Vormair heat generator with a burning chimney in an orchard, next to a wind machine
Sizing

How much heat does a frosty night need?

5,000–10,000 MJ/ha/hour is the professional benchmark — what that means in kW, what pure heating would cost, and what works instead.

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The wind machine draws in smoke fed above the chimney, at night
Field test

How much warmer does the Vormair heat generator make the air?

Field measurement: alongside a rotating wind machine, the intake air rose by +6–10 °C per rotation — with data and night footage.

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Wood pellet, propane cylinder, diesel jerrycan and frost-protection candle
Comparison

How much does heating a frosty night cost?

Diesel, propane, wood pellet and frost candle — operating cost for the same delivered heat, per hectare.

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