SIMPLY THE BEST STOVE FAN ON THE MARKET !!!!!

 BEWARE OF OTHER SELLERS SELLING OLD STOCK THIS IS THE 2024 REVISION MARK 10 ,NEW STOCK ONLY JUST COME IN 


THE DIFFERENCE IS THE FAN SPINS MUCH QUICKER THAN THE OLDER VERSIONS THUS GETTING MORE HEAT DISPERSAL

Generates its own electricity

These fans generate their own electricity using the heat from a stove. The fan acts like a large heat sink, drawing heat from the stove up through the aluminium base. Half way up the base is a peltier cooler. The temperature difference between the bottom and top of the base causes the peltier cooler to produce low voltage electricity. This powers the electric fan which blows warm air around the room. Suitable for an Aga or wood/oil burning stove. 

What are the advantages of using it?
Stoves are good a radiating the heat, but can sometimes leave parts of the room cold while, closer to the stove is lovely and warm. You may find yourself sitting closer to the stove just to keep warm. Theecofan helps to reduce this problem by blowing warm air around the room. The ecofan is a best seller in narrow boats where one end of the boat can be hot (by the stove) and the other end cold. 

Note: The fan will run slowly on a hot radiator or on top of a hot cup of tea/coffee, which makes it ideal for class room demonstrations. 

The Peltier-Seebeck effect
The peltier cooler in this fan uses the Peltier-Seebeck effect. In 1821, Thomas Johann Seebeck discovered that a solid metal bar that had a large temperature difference between the two ends produced an electric current. In 1834 Jean Peltier took this discovery further by observing that two different metals or semiconductors that are connected in a particular way (Peltier junctions) could act as a heat pump if electricity was passed across them. In other words heat would be pumped from one side to the other, creating one cool side and one hot side. Peltier coolers are often called thermo-electric coolers (TEC). 

  • Generates its own electricity using the heat of the stove

  • Fan outputs 120CFM to help circulate warm air throughout the         room        

  • Fan speed varies automatically with the stove temperature

  • Ultra quiet

  • One year warranty

  • For optimum performance, place on a stove 400-650 F (340 C)

  • Base size 102mm (W) x 76mm (D)

  • Blade size 208 Diameter

  • Overall size at largest point 212mm(H)x 208mm(W)x 123mm(D)

 

our experiments we used the Heat Powered Stove Fan (pictured above) This is a 23 x 20.5cm fan in a satin black finish which is designed to sit on top of the stove 


The fan stand comprises two parts - the base which heats up on the stove, and the top which has fins so that it cools quickly. A peltier module is sandwiched between the top and the base and generates electricity when there is a temperature differencebetween the top and base. This electricity powers the motor which drives the fan.

It is almost impossible to conduct true scientific experiments in a real world situation with this type of fan. It is impossible to completely thermally isolate a room from the rest of the house while the rest of the house is being heated (or not being heated), and while the temperature outside is changing. It is also extremely difficult to maintain the stove at a constant temperature - therefore, while it is possible to run the stove with and without the fan and collect data, it is difficult to say for sure whether the room heated up more quickly or whether less fuel was used to heat the room to a certain temperature when the fan is used compared to when it is not.

The Experiment

We decided to run the following experiment. Using a 4kW rated multi-fuel stove in a room which is 3m x 4m x 2.8m (high) we set up an accurate digital temperature logger at a height of 1.2 metres at the wall opposite the stove (3.2m from the stove). This would then record the temperature felt by people sitting in their usual position on the sofa. We would perform this experiment in the evening as the outside temperature was going down, and leave all other heating off in the house so we know its temperature was falling too.

We would then get the stove burning with the stove fan not in place, and fill it with wood. We would watch the temperature rise as the stove got hotter and hotter and circulated hot air around the room. Then later as the fuel in the stove is partially consumed and the stove starts to cool, when the temperature measured at the thermometer starts to level off or drop, we would then put the fan on top of the stove. If the fan works we would expect to see a spike upwards in temperature, and if so, since the outdoor ambient temperature is going down, the stove is cooling, and the rest of the house is cooling, we would know that the effect was due solely to our stove fan.



The makers of the stove promise that the fan will 'maximise energy from the stove and reduce fuel consumption'. The key thing to remember is that the amount of heat which comes out of the stove when the fan is running is unchanged. The difference is that people in the room feel more of the benefit of the heat from the stove before the hot air rises above them and warms up the ceiling. If people feel warmer then they will add less fuel to the fire less frequently, and if the room heats up faster, they may not resort to secondary heating in the room such as radiators. It certainly looks like this fan makes a real positive difference.

Additional Experimentation

In further (not so rigorous) testing we found the following:

The fan has more of an effect on the room temperature when it is positioned at the back of the stove rather than at the front.

The effect of the fan (i.e. the temperature increase at height of 1.2 metres) is greater the closer you are to the stove - probably because if you are far from the stove much of the hot air it drives towards you rises above your head before it gets to you.

The fan spins faster when used on a free standing stove compared to a stove positioned inside a fire place. This is because hot air gets trapped in a fireplace which reduces the temperature differential across the peltier module and so less electricity is generated and the fan spins slower.
Tip from Valiant: As the air is removed from the enclosed space [of a fireplace] the fan will spin more quickly, therefore it is always best to have the fan in situ when the stove is lit.

It hurts when you pick up the fan forgetting that it is hot. When you subsequently drop it, it will chip a slate hearth while being undamaged itself, so it is certainly robust.

Even sitting in front of the fire you cannot hear the fan turning over the sound of the fuel burning, so it is to all intents and purposes silent in operation

                                                                                                     

The twin blades are made from anodised aluminium so they won't rust. They are available in black, gold or nickel. With its ultra quiet operation you wont know its there.

The overall height of the fan is 21.2cm

The blade size is 20cm

If you have any questions please feel free to ask

We offer a 14 day money back guarantee but the item and box must be retuned in the original condition . Regrettably we cannot refund the return postage .