Greenhouse heating system: the most efficient schemes
There are many solutions for heating winter greenhouses, but greenhouse heating system can be built according to different principles. As a result, it can have different implementation costs and be based on different principles of energy supply organization. We offer you two, in our opinion, the most effective heating schemes for greenhouse premises. Each of them has its own characteristics and advantages. In the videos offered, you will find out how turnkey greenhouseand what is price with heating.
Theoretical background: greenhouse heating system - what to start from
Growing crops in a greenhouse in winter means creating special conditions necessary for the development of plants. One of them is the appropriate temperature regime provided by heating. Air heating remains an effective solution in rooms with poorly insulated walls, which, if properly organized, allows using the generated heat with the efficiency of 93%.
The greenhouse heating system must evenly distribute heat from the boiler throughout the room, creating the specified temperature conditions. Typically used for heating:
- water heating - in 60% cases;
- infrared electric heating - in 25% cases;
- air heating - in 10% cases.
Despite practical experience, implying that air heating is the most effective, greenhouse farms are rarely used to organize heating. The reason lies in the misunderstanding that with air heating, there is much less loss, since there are fewer heat transfers. If, when a water coolant is supplied through pipes, it heats up the soil and air, then the warm air masses quickly and evenly mix with the cold air.
Direct heat transfer to air is more economical and less expensive. This is especially evident when organizing an industrial-type greenhouse heating system.
Despite the fact that warm air is quickly distributed throughout the room as a result of the effect of gas diffusion, in large rooms, better distribution can be achieved with the help of fan heaters. In the upper part of the greenhouse, cooled air is sucked back into the system and fed to the boiler for heating. How such a greenhouse heating system is practically organized can be seen in the video.
Solar Vegetarian with Ground Heat Accumulator
We offer you another interesting scheme for heating a greenhouse using solar energy. This system involves heating a water coolant in a solar collector and transferring heat to a ground accumulator. A similar complex can be implemented with forced heating of the soil using boiler... The solution can be combined with air heating. Suggested solution - pellet burners FOCUS.
The video shows the process of building such a vegetarian. This allows you to evaluate this turnkey greenhouse and its price with full heating.