Heating for professional greenhouses
Greenhouse heating is essential during the winter months to provide the necessary warmth for the proper development of seedlings, plants and seedlings.
To maximize yield and minimize losses, particularly due to frost, it’s a good idea to rent or buy a greenhouse heater.
It should be fitted with a thermostat that allows you to obtain the desired temperature in the greenhouse and, above all, to switch on the heating when a certain threshold is reached.
During the ice age (usually in May), lack of heating in the greenhouse can lead to a total loss of production.
For professionals, a few guidelines for choosing your greenhouse heating system
First, calculate the volume of the greenhouse (W x L x H). Then look at the geographical zone in which the greenhouse is located (find the minimum temperature). Take Bordeaux, for example, located in zone B at an altitude of 42 m, with minimum temperatures of -4°C. So to calculate, we need to take the desired inside temperature in the greenhouse and subtract it from the minimum outside temperature. – Determine the insulation coefficient called K. For greenhouses in general, we’ll take a coefficient of between 3 and 4.
The formula is as follows:
P = Volume x DELTA T x K This gives us the number of kW required, so we can determine the heating capacity to be installed.
Which fuel to choose?
Oil-fired heaters, commonly known as hot-air cannons, are the most widely used heaters for greenhouses.
Mobile, this heater can be placed outside the greenhouse, with the diffusion sheath inside.
Connected to a tank or running on its own built-in reservoir, this heater can operate completely independently.
When the temperature falls below that set on the thermostat, the heater switches on automatically.
If you opt for oil-fired heating (hot-air cannon), installation will be easy.
This product is handy, robust and functional.
The heater can also be installed indoors, taking care to evacuate burnt gases outside.
If you heat your greenhouse with electric heaters.
(electric unit heaters), it is often necessary to have a three-phase power supply and adjusted power ratings.
You can hire a generator to match your power requirements.
You can also install electric radiant heaters that hang over the plants to be heated. In terms of price, however, this is not the most economical solution.
POLYPOLES your local partner
Polypoles has 7 branches to be as close as possible to its customers and reduce delivery costs.
We offer both sales and rental of appropriate, high-quality equipment adapted to the power required.
In fact, we have a permanent stock of verified and tested products (for rental) whatever the power required.
Our sales team is qualified to provide you with a free thermal assessment and offer you a cost-effective solution.
If you wish, our technical team can also provide a turnkey installation.
We can also take care of delivery.
If you have any questions or would like a quote, please contact us!
