Heating

 

Heating is a crucial element in glasshouse horticulture. 

Growing healthy,high quality plants in a consistent environment is the goal for many growers of plants such as tomatoes, lettuce, cucumbers, herbs, flowers, strawberry, and other vegetables

Advantages of Hot Water Radiant Heat

Hot water heat delivers heat right to the plant, under bench or in the greenhouse floor, plus these advantages:
  • Controlled growing environment

  • Increased yields

  • Accelerated rooting and plant growth

  • Reduced disease and improved plant quality

  • Up to 40% fuel efficiency savings over conventional forced air heating

  • Flexibility to heat by zone, plus soil and plant temperature control

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    Central Heating, which uses hot water or steam. Hot water or steam heating systems can also be used to preheat irrigation water and prevent cold-water shock to plants.  The heat is centrally provided by the boilers and transferred to the greenhouse environment either by pipes that are smooth or finned or by unit heat exchangers equipped with fans.

     

    Overhead Heating Systems


    Overhead Heating Systems can provide the additional heat required for winter months.  Such systems are compatible with hanging basket areas, snowmelt systems, and mono- or duo-rail systems. 

    Pipe/Rail Heating Systems maintain uniform temperatures and positively affect the microclimate of plants. Air movement caused by the warmer pipe/rail reduces the humidity around the plant. Such systems are suitable for vegetable production systems.

    Underbench Heating Systems maintain uniform temperatures and positively affect the microclimate of plants. Air movement caused by the warmer underbench pipe reduces the humidity around the plant. Such systems are suitable for plants grown on benches, fixed tables, rolling, or transportable tables.

    Unit Heaters, which use forced air, may be gas or oil fired. These heaters are better suited for smaller greenhouses. The use of poly tubes to distribute heat more evenly minimizes temperature fluctuation. 


       

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