Having adequate heating in your greenhouse or greenhouses is crucial if you want to grow plants all year round or extend the growing season. Even in the coldest months, you can make sure that your plants stay warm and healthy with the correct heating system. This post will examine five distinct greenhouse heating solutions and go over each one’s benefits, drawbacks, and suitability for different applications.
Let’s start by talking about one of the oldest techniques, which is heating with a wood stove or furnace. Small to medium-sized greenhouses can reliably receive heat from this centuries-old technique. Since wood is a renewable resource, heating with it is an environmentally friendly choice. But it needs routine upkeep, like clearing out ash and making sure there’s always firewood available.
The next option is propane heating, which is a preferred option for many owners of greenhouses. The temperature in a greenhouse can be swiftly raised with propane heaters, which are efficient. Additionally, they are not too difficult to install and maintain. However, some growers may want to take into account the fact that the price of propane can change based on market conditions and geographic location.
Electric heating may be the best choice for individuals seeking a more environmentally friendly solution. Electric heaters are friendly to the environment because they are clean and emit no emissions. They are also simple to operate, making it possible to precisely control the temperature. But compared to other heating techniques, they can be more costly to run, particularly in places with high electricity costs.
Using a geothermal system for heating is an additional choice to think about. The greenhouse is heated by geothermal heating, which makes use of the natural heat that the earth stores. Geothermal systems can be more expensive to install initially, but they provide considerable long-term energy savings. Furthermore, stable temperatures necessary for plant growth are provided by geothermal heating, which is dependable and consistent.
The last method is solar heating, which heats the greenhouse by using the sun’s energy. Systems for solar heating can be as basic as passive ones or as sophisticated as active ones with heat storage tanks and solar collectors. Although solar heating is renewable and can save energy expenses, it might not work as well in areas with little sunlight or in overcast conditions.
In conclusion, there are a variety of heating options for greenhouses, each with pros and cons of its own. You can select the heating system that works best for your greenhouse operation by considering the requirements of your plants, your financial situation, and your environmental objectives.
- Option #1 – water heating system
- Option #2 – heat the room with air
- Option #3 – infrared heating of plants
- Option #4 – Electric heating of the soil
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Option #1 – water heating system
The most popular option is a liquid heating system, with water or antifreeze (less frequently) used as the coolant. The even distribution of heat and consequently the active growth of plants are two of this solution’s main benefits.
The water system operates on a very basic principle: the circulation pump pushes heated coolant from the heating boiler through the pipeline, where it "supplies" heat and soil via convectors or radiators.
The arrangement of pipes in multiple tiers ensures optimal heating of the entire volume of the room. Above "laid" beneath a greenhouse’s cover. The middle is completed in the spaces between the rows, close to the exterior walls, and along the internal stands of the frame. The bottom one is situated at ground level. It is required to install a soil heating system; the pipe laying step should start at a minimum depth of 40 cm.
Convectors with a compact design and high efficiency can be used in place of radiators when installing a water heating system in a greenhouse.
An existing boiler installed in the home can be used safely as a heat generator; a gas boiler is the most reliable and cost-effective option. Good power equipment can easily meet the requirements of a "evergreen structure" as well as housing. It is preferable to buy a single-circuit boiler for heating plants if the heating of the structure was not planned at all during the house’s design. In the boiler room, a separate heat generator makes the most sense because certain conditions in the winter garden or greenhouse can cause equipment to break suddenly.
Increased humidity is a boiler’s biggest enemy in these circumstances.If the greenhouse is independent, the boiler’s heated coolant should be used to build a well-insulated heating main. At least 1.5 meters of depth should be reached during construction, with the insulated pipeline placed inside a concrete channel that has been filled with expanded clay and treated to make it waterproof. Water heating in winter gardens and greenhouses exhibits exceptional efficiency, even in areas with extremely severe climates. Among the disadvantages of the liquid system, it is important to highlight the installation’s complexity and the necessity of buying a significant amount of auxiliary equipment.
In this article, we"ll explore five different heating options for greenhouses and garden houses, providing a comprehensive review to help you choose the best one for your needs. Whether you"re a seasoned gardener or just starting out, finding the right heating method is crucial for maintaining optimal growing conditions year-round. From traditional options like gas and electric heaters to more innovative solutions such as geothermal heating and solar heating, we"ll delve into the pros and cons of each method, considering factors like cost, efficiency, environmental impact, and suitability for different climates. By the end of this review, you"ll have a clear understanding of the various heating options available and be better equipped to make an informed decision for your greenhouse or garden house heating needs.
Option #2 – heat the room with air
If you reside in an area with a moderate climate, you may want to think about installing air conditioning. An air heater (liquid fuel or gas) and flexible and hard air ducts are the primary components of such a system. Recirculation fans are in charge of moving the heated air around the building. The furnace or other equipment already present in the house can heat the winter garden that is next to it.
If money permits, you can buy a "air-air" heat pump to use as the system’s heat source. TN are superior to other heat generators in a number of ways, including adequate efficiency, simplicity of installation, high automation, and a variety of operating modes.
Low inertia and high efficiency—after just 40 minutes, the greenhouse’s air temperature rises by 15 degrees—are two of the system’s main benefits. Even with open transformers, the phenomenon is evident.
The capacity of air heating to swiftly raise the room’s temperature to the necessary levels is one of its characteristics. It is true that it is advised to "combine" it with other systems due to its insufficient power.
Option #3 – infrared heating of plants
Infrared heaters, both gas and electric, are widely used. IR foaming differs from convective heating primarily in that heat is transferred to plants rather than air. Many temperature zones for growing plants with different climate requirements can be easily arranged in the greenhouse thanks to infrared units.
Electric infrared heaters are a fairly appealing option because of their compact design and incredibly easy installation. However, because electricity is so expensive, their operation generally "flies into a penny." Use such equipment to heat a large greenhouse; it will be a complete disaster.
Option #4 – Electric heating of the soil
Compared to setting up other heating systems, electric soil heating enables the greenhouse to start up a little faster. Additionally, it has the following benefits:
- uniform heating of the entire area of the structure;
- minimum installation costs;
- small labor costs for system maintenance;
- relative economy;
- Elementary control.
This is actually a type of analog for "warm sexes," which are frequently placed in residential settings. To arrange it, arrange a layer of waterproof thermal insulation, add a layer of 5 cm sand on top, place a cable with a minimum step of 12 cm, and add another layer of sand.Finally, place a protective pike grid on top of the sand.
In order to prevent plant roots from drying out, the resistive cable used for soil electric heating should have a maximum power of 15 W/m.
| Heating Option | Description |
| Solar Heating | Uses sunlight to warm the greenhouse through panels or pipes. |
| Electric Heating | Utilizes electricity to generate heat, often through heaters or heat mats. |
| Wood Stove Heating | Burns wood to produce heat, providing a traditional and rustic option. |
| Propane Heating | Relies on propane gas to create warmth, offering consistent heating. |
| Geothermal Heating | Draws heat from the earth"s natural warmth, offering energy-efficient heating. |
Selecting the best option for heating your garden or greenhouse is important for your plants as well as your pocketbook. We’ve looked at five distinct heating techniques in this post, each with advantages and disadvantages.
First of all, conventional techniques provide convenience and dependability, such as gas and electric heaters. They can swiftly increase the greenhouse’s temperature, ensuring that your plants are comfortable even on chilly nights. They can be costly to operate, though, particularly if you’re heating a big space or energy costs are high.
Alternatively, a more environmentally friendly choice is biomass heating, like that found in wood or pellet stoves. In addition to using renewable resources, they produce fewer greenhouse gases than fossil fuels. But they need more physical labor for upkeep and fueling, so they might not be for everyone.
Geothermal heating presents a promising option for those looking for creative solutions. Geothermal systems are capable of delivering steady warmth all year round by utilizing the heat that naturally exists on Earth. Even though the initial installation cost might be higher, the long-term energy bill savings might make this investment worthwhile.
Using solar energy to heat your greenhouse is another environmentally friendly option. Solar technology is becoming more efficient and more reasonably priced than it has ever been thanks to developments like solar panels and thermal collectors. You’ll also gain from a decreased dependency on traditional energy sources.
Lastly, any heating system can benefit from passive heating techniques like thermal mass and insulation. You don’t have to rely entirely on active heating techniques to minimize heat loss and maintain a steady temperature in your greenhouse by making the most of its design and using heat-retaining materials.
In conclusion, a number of factors, such as your budget, personal preferences, and environmental concerns, will determine which heating option is best for your greenhouse. Your plants will have a healthy environment all year round whether you choose to use conventional heaters, environmentally friendly substitutes, or a mix of the two. Efficiency and sustainability should be given top priority.
