To maintain adequate temperatures during colder periods and ensure consistent warmth for plant growth.
Types:
● Gas Heaters: Use natural gas or propane to generate heat. Ideal for large greenhouses.
■ Energy Consumption: Typically consumes between 5 to 30 kW.
■ Efficiency: Modern gas heaters can achieve efficiency rates of 80% to 95%.
■ Benefits: Efficient for large greenhouses; provides rapid and effective heating.
● Electric Heaters: Provide direct heat and are suitable for smaller spaces or supplemental heating.
■ Energy Consumption: Generally ranges from 1 to 10 kW.
■ Efficiency: Nearly 100% efficient in converting electricity into heat.
■ Benefits: Ideal for precise temperature control in smaller spaces; easy to install and maintain.
● Hot Water Systems: Circulate heated water through pipes or radiators to warm the greenhouse uniformly.
■ Energy Consumption: Varies around 10 to 50 kW.
■ Efficiency: Can achieve up to 85% efficiency.
■ Benefits: Provides uniform heating; can be combined with solar heating systems to reduce energy costs.