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Why Wood Pellet Quality Is Important

Premium Quality Wood Pellets

Pellets burn at a very high, constant heat and can, if not of the required size and quality for your appliance, lead to loss of efficiency and potential clogging of the burner pot. This is particularly important on smaller boilers and stoves used in domestic properties as the tolerances involved are much smaller. Larger industrial size pellet boilers do not suffer as much from this problem and can therefore use lower quality pellets without experiencing the same issues.

One thing you can be assured of with Woodpellets2u, is that to us premium quality really does matter. As such we source our virgin wood pellets from ENplus A1 certified suppliers such as Verdo. Verdo have adopted the European ENPlus quality standard for production and supply of wood pellets. Woodpellets2u wood pellets are, therefore, manufactured using state of the art machinery, from the finest quality raw materials and go through stringent testing procedures to meet and surpass the ENPlus standards required for clean, efficient burning in your boiler or stove.

The ENPlus standard is tried and tested. Wood Pellets have long been established in Europe, with some countries now having more domestic households burning wood pellets than heating oil. Our counterparts in Europe manage quality of wood pellets through the ENPlus standard, satisfying the boiler manufacturer and consumer demands for the finest quality fuel. This standard has been recognised throughout Europe as the benchmark for the highest quality wood pellet and is now being adopted in the UK.

What are the Important Quality Areas you should look for in a pellet?

Low Ash Content

The lower the ash content the cleaner the pellet will burn and the more efficiently your boiler will function. Increased Ash levels also means more cleaning and maintenance required with your boiler. High levels of ash could signify greater levels of bark, moisture or other contaminates in your wood pellet. In order to meet ENPlus standards and be assured of the pellets suitability for use on smaller appliances, wood pellets should have an ash content of 0.7% or less.

High Ash Melting Temperature

A damaging effect to any boiler is what is known as clinker - the incombustible lumps of residue that are left behind after burning. This residue is not only a nuisance but can lead to damage to the burner pot, meaning regular replacement. Ensuring that your pellet has an Ash Melting Temperature above 1200°C reduces clinker build up, improving the life and efficiency of your boiler.

Consistent Wood Pellet Diameter

Having a pellet of consistent diameter is important, as wood pellet boilers are designed and commissioned to accept a pellet of a specific diameter. Smaller domestic appliances take a 6mm diameter pellet, whilst larger industrial size boilers take 8mm pellets. Using the wrong size pellet in your appliance will severely alter combustion conditions, resulting in a loss of efficiency and an increase in emissions.
To ensure we supply you with consistent diameter pellets we have adopted a number of quality control procedures in our manufacturing and delivery processes. Firstly our pellets are manufactured to a uniform 6mm diameter on state of the art pellet mills. Secondly the pellets are screened to remove any pellets more than 40mm in length. Thirdly, the wood pellets are tested for durability so they do not break down during transport. And finally, our new fleet of specifically designed delivery tankers will make sure your pellet is delivered into your store with minimum stress and breakage.

8mm diameter pellets are also available but these are only suitable for large or industrial sized boilers.

Low Wood Pellet Dust:

High levels of dust will block your feed system and result in your boiler or stove running with poor efficiency. Our wood pellets go through a de-dusting process before being bagged or loaded into our delivery vehicles. We also carry on our delivery tankers a vacuum system, eliminating any dust whilst the pellet is being delivered into your store. To comply with ENPlus standards wood pellets should contain 1% or less of dust.

Low Moisture Content

You wouldn't expect a fire to last very long if you threw water on it, but that is exactly what you are doing if you use wood pellets with a high moisture content of greater than 10%. The lower the level of moisture in your wood pellets, the higher the heat output per kg and the more efficiently your boiler will operate. To comply with ENPlus standards wood pellets should have a moisture content of 10% or less.

High Heat Output (kW/h)

We measure the heat output of our pellets in Kilowatt Hours (kW/h). This is a standard measure used across many different forms of heating fuels and allows you to compare one against another. Woodpellets2u pellets comply with ENPlus standards, emitting 4800 kW/h of heat per tonne of fuel burnt. You can use this measure to estimate the amount of fuel you might require in a typical year and therefore your costs.

Supplier Quality - If you have a problem

Woodpellets2u prides itself on supplying the highest quality wood pellets that comply fully with the European ENPlus quality standard. This ensures trouble free and efficient operation of your boiler or stove at all times. Furthermore, our wood pellets have been independently tested and approved for use on their boilers by leading boiler manufacturers Hoval, HDG, Solar Focus and Windhager UK.

To make sure we offer only the highest quality pellets every time we have stringent quality control and testing procedures in place throughout the manufacturing and delivery process. Batch sampling means that we can trace every delivery of pellets back to source, helping us to isolate any problems and deal with them quickly and with minimum disruption to customers.

Finally, make sure that when you are talking to a supplier of wood pellets they can answer the following questions about quality:

  1. Do their pellets meet ENPlus standards? (If they do they should be able to tell you what these standards are).
  2. What is the Ash and Moisture content of their pellets?
  3. What is the Ash Melting Temperature of their pellets?
  4. What is the dust level of their pellets?
  5. What quality control and testing procedures do they have in place?
  6. If ordering loose pellets - Will they be delivered by a specifically designed tanker vehicle that is purpose built for the job?