The air temperature that exists within a greenhouse is absolutely critical to plant growth. It is also an essential component to disease control and the survival of the plant life within the growth structure, in general.
Regardless of the season, the sun has the capability of providing a large amount of the heat requirements of the greenhouse during the daytime. However, when the day is overcast or when night falls, supplemental heating is a requirement during the times of the year that are cooler. Most greenhouse owners utilize unit heaters that utilize various types of gases, such as propane, natural gas and heating oil. A gas greenhouse unit is considered to be one of the most popular heating units for growth facilities because they have a low capital and extremely low installation cost. In addition to this, the gas heater units are considered to be exceptionally reliable.
Gas heaters are commonly referred to as “Direct-Fired” units. These systems require gas. When the gas is burned, it blows the end product that is created by combustion into the region of the structure that requires heat. Many greenhouse owners purposely elect to utilize these systems because one of the by-products associated with the combustion is carbon dioxide. As a cultivator knows, a combination of warm air and carbon dioxide is highly beneficial for plant growth and survival. In addition to the production of carbon dioxide, these heating units have a high level of thermal efficiency.
The products associated with the combustion of the heating unit are not exhausted outside of the structure. As a result, the thermal efficiency is not at all reduced. If you elect to purchase a gas greenhouse heater, you will also find that the installation is simple and inexpensive.
Due to the fact that gas greenhouse heaters do, in fact, produce carbon dioxide, one of the first measures that you should take during installation is to install carbon dioxide sensors. These sensors will prove to be exceptionally beneficial in preventing an overdose of the substance into the air. While small amounts of carbon dioxide are productive to plant growth, large amounts may prove to be detrimental. You should also determine whether or not you require a vented or unvented gas greenhouse unit. The vented gas heater is the most traditional unit. It transfers the heat from the combustion chamber into the air. This transfer is completed through a heat exchanger. Once in the air, it passes into a flue pipe that exhausts the created gases outside of the growth facility. The modern, unvented unit takes all of the combustion materials and then pushes them into the greenhouse. These are among the most popular because nearly all of the fuel used to create the heat from the unit is placed inside of the greenhouse.
When installing a gas greenhouse heater, the next step that should be taken is to decide whether or not the greenhouse will require combustion based air inlets.
Today, most greenhouses that are composed of plastic are constructed in an extremely tight manner. As a result, the infiltration rates are exceptionally low. This means that very little cool air has the capability of leaking into the growth structure. While this is beneficial in that little of the warm air produced from gas greenhouse heaters escapes, it could be troublesome because it also indicates that the structure could receive very little fresh air. If you would like to ensure that your crops are receiving a solid level of fresh air at regular intervals, it is important to ensure that you place inlet openings throughout the establishment.
A vent system that delivers fresh air should be placed within one foot of the unit where combustion associated with the heating occurs. In addition to this, you should make certain that a power damper is placed on the inlet so that it only goes into an open position when the greenhouse heater is in operation mode.
When installing a gas greenhouse heater, the next consideration that should be made relates to the distribution of the heated air within the structure.
If the distribution area is placed in an ideal location, it has the capability of decreasing the total amount of energy that the greenhouse houses. Additionally, it has the capability of optimizing the overall growth of the crops within the structure and how much those crops are capable of yielding. You should ensure that you place hydronic based floor heaters because cultivating crops on the floor of a greenhouse has the ability to save you up to 30% on your total heating costs. If you reside in a very cold region, it may be best to ensure that additional under-bench heating units are utilized that forces heat out into the structure. These are beneficial because many heaters are unable to keep up that are placed on the floors of the structures during winter months. These under-bench heaters have the capability to pick up the slack without increasing your heating costs.
As you can see, there are numerous factors to consider when installing and utilizing a gas greenhouse heater. While it is important to install the heater according to the manufacturer’s instructions, you must also take other factors into consideration to ensure that your growth facility receives the most appropriate amount of heat. When installing your gas heater, be certain to consider whether your greenhouse will benefit from a vented or unvented unit. It is important to install a carbon dioxide monitor. You should also ensure that you place combustion inlets throughout the greenhouse.
Lastly, it is also essential to ensure that heat is being transferred to the most energy efficient location of your growth facility. By following these simple steps, you are sure to reap the highest level of benefits from your gas greenhouse heater.