3kW Arkansas Greenhouse Heater - 3kW Arkansas Greenhouse Heater

• 2 Heat Outputs - 1.5kW or 3kW 
• Powerful fan for even heat distribution
• Highly accurate Energy-saving thermostat 0-26degC
• Quiet smooth motor
• Really Strong Steel casing
• IPX4 Splashproof & CE Tested
• Now with improved thermostat sensitivity for even greater control
• IN STOCK at our UK warehouse for immediate despatch
• This heater is ideal for a 10x8 Greenhouse, but can also provide frost-protection for greenhouses up to 10x12 in size

2 Year Manufacturer's Warranty

To keep a greenhouse frost-free, the temperature must remain above 0°C even in the corners. If the current of air does not reach there, then the temperature on the heater has to be set really high.

However, then a large proportion of the warmth goes up into the gable of the greenhouse, where it is not needed, while the corners may still dip down to minus temperatures.

This is an unsatisfactory state of affairs, because heating energy is being wasted. In addition, there may be a significant temperature difference between when the heater switches on and off, especially with cheaper thermostats.

This means that if the thermostat has a switching differential of, for example, 6°C, then the greenhouse has to be heated up to 8°C if it is not to fall below the frost-free limit of +2°C before the heating switches on again automatically.

The Arkansas heater avoids the unnecessary heating up by keeping the switching differential to a minimum by using a highly accurate thermostat. This results in significant energy savings.

This is why Bio Green, as greenhouse specialists, have developed the Arkansas heater, which offers important advantages: High ventilation rate of up to 135m/hr. In normal circumstances, the current of air covers the entire greenhouse, (if the machine is correctly positioned). This means that the temperature difference inside the greenhouse remains small. Fungal attacks and mould formation are prevented.

Use of a high-quality thermostat with a control accuracy of ± 0.3 to 0.5°C. This keeps the temperature remarkably constant and avoids the expensive high temperature peaks.

Why have fans with a high ventilation rate?

The ventilation rate is set higher than conventional fan heaters. There are three reasons for this:

1. Because the air is always circulating rapidly, the input temperature can be low, below 45°C. This means there is no drying of the air or of foliage even close to where the air is coming in.
2. Because of the high ventilation rate, all the air is circulated. An even temperature is achieved throughout the greenhouse and the dreaded high temperature differences (hot at the top and cold at the bottom) are prevented.
3. This keeps the heating within a reasonable temperature range and reduces drops in temperature due to heat loss to the outside.

The fan setting

By using the fan setting, all the air in the greenhouse can be circulated even in the summer season. With the windows open and the fan on, the greenhouse can be cooled down. Air circulation in the summer is also necessary for the pollination of many flowers.

The fan

Can be left on for long periods without using much energy. Low-maintenance ball bearings, metal blades, a built-in thermostat, extra anti-corrosion protection and an earth wire - these are the features that make this fan a durable, long term investment.

The safety device

As well as the thermostat, the heater has another temperature controller which switches off the heating coil if there is a fault. This may happen if the outlets become blocked for example by dirt or fallen debris.