2800w Electric Phoenix Greenhouse Heater - PHX.

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Most Recent Customer Reviews (5 out of 5)

great product recieved on time well packed and does what it says on the tin

Reviewed By MR B from WOLVERHAMPTON Review Date 15 April 2013

(5 out of 5)

This very smart piece of equipment has kept my greenhouse at a steady temperature since January, so my plants from seedlings are in perfect health. Well worth having if you are a keen gardener. Good controls with a good selection of settings.

Reviewed By Colin from Christchurch Review Date 07 March 2013

(5 out of 5)

Brilliant, should have bought one years ago. I reckon within 2 years it will have paid for itself in fuel savings. In addition because I have more control of the temperature my plants are much better quality too. Buy one now.

Reviewed By Brian from Bradford Review Date 19 February 2013

(5 out of 5)

Received the item very quickly it was well packaged and not damaged in any way. We have not as yet started using the item as we do not expect to start growing our seeds for a couple of weeks. I sent off the guarantee which states that it is guaranteed for 2 years but on other website the manufacturers guarantee runs for 3 years so I am not sure which applies. I bought the item from garden4less as it was the same item was being sold on other websites for a lot more Thank you

Reviewed By Collette from Croydon Review Date 03 January 2013

(5 out of 5)

I guess I've had 4 or more greenhouse heaters over the years, but this is far & away the best of them. It is more expensive than the alternatives, but worth every extra penny. I adjusted the 1.8kW output until finding the temperature I wanted and it has been operating continuously since, but I did not expect it to produce the performance it has; since installation the temperature readings on my max/min thermometer have ranged from the optimum to around 8 degrees over, but that increase was due to a sunnier spell when the 'Phoenix' was circulating only unheated air. It is extremely well designed of sturdy construction - should I say typically German?

Reviewed By Derek Goddard from Bromley, Kent Review Date 27 December 2012

(5 out of 5)

fantastic heater just what i was looking for service was first class and i am very very happy with my bio green phoenix.it's up and running in my greenhouse thank very much for your service.

Reviewed By david from doncaster Review Date 22 November 2012

(5 out of 5)

Great heater has had plenty of work since i got it.Temps -8 to cope with did a great job,would recomend heater.Greenhouse is 12ftx8ft on 1800 setting as recomeded.

Reviewed By William from PENICUIK Review Date 07 November 2012

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Heating a greenhouse, the problem

To keep a greenhouse frost-free, the temperature must remain above 0ºC 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, 6ºC, then the greenhouse has to be heated up to 8ºC if it is not to fall below the frost-free limit of +2ºC before the heating switches on again automatically.

The Phoenix heater avoids the unnecessary heating up by keeping the switching differential to a minimum. This results in significant energy savings.

This is why we, as greenhouse specialists, have developed the Phoenix heater, which offers important advantages: High ventilation rate of up to 400m_/h. 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 0.5ºC. 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 at about 3.5 times higher than with conventional fan heaters. There are three reasons for this:
1.Because the air is always circulating rapidly, the input temperature can be low, below 45ºC. 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 Ð these are the features that make this fan a durable, long term investment.

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