Darionti Ltd. T/A WoodHeat
The Old Creamery - Connonagh - Leap - Co. Cork
Tel/Fax: +353 (0)28 34411
email:

Oats Boiler

Firing

Burning fuel with the AgroTec burner is a very similar process to burning oil. A burner fitted with automatic ash discharge requires little more maintenance than an oil burner. But we do recommend measures such as removing the soot from the boiler.

Fully automatic
  • The burner and the accompanying feed system operate fully automatically. The burner is controlled by the boiler’s thermostat.
  • A preset oxygen function with primary and secondary air supplies ensures the complete combustion of the fuel in a both cost-effective and environmentally friendly manner.
  • The burner can be adjusted for fuels with different energy and moisture contents.
  • The burner’s control unit is pre-programmed so that the on-site engineer can create a basic setting for the fuel that is to be used.
  • The burner is automatically fed with fuel from the external fuel store by a feed system which is tailored to the boiler and burner and controlled by the burner’s control unit.

Recommendations on Fuel Pellets

Raw materials
  • Fuels can be made from different raw materials. The most common material is wood, but there are suitable alternative materials available on the market.
  • The raw materials have different properties which give them both advantages and disadvantages as a pellet fuel. The important factors are the energy value, the ash content, the volatile matter content, the environmental impact and, last but not least, the price.
  • You should choose a fuel which has the lowest cost per unit of energy, taking into account the fuel's function in the burner, the ash content and the environmental impact.
  • The AgroTec burner is primarly designed to be able to burn whole oat kernels.

Oats Not food grade
Weight 600-650 kg/m³
Energy content 4.0 - 4.2 kWh/kg
2.5 ton equivalent to approx.: 10,000 kWh
Moisture content max 12-14%
Ash content / Weight 5-8%

  • Oats are the cheapest way to fuel automatic systems.
  • Oats are just as good as pellets
  • This is the burner for you if you want to cut your heating costs right down. With this product the  type of fuel you choose depends on your individual circumstances:
  • Oats are the natural choice if you can use either your own or locally grown fuel.

Why use oats as fuel?

  • For the financial savings.
  • Energy can be produced locally and provide employment in the surrounding area.
  • Unlike firewood, the fuel is always uniform in size and dry, as well as easy to handle, transport and burn in automatic systems. We are preserving open countryside.

Oat feed system.


Ash and combustion

  • All systems which burn solid fuel, even automatic systems like the AgroLine 20 burner, require maintenance and servicing.
  • The majority of the maintenance varies according to the type and quality of the fuel used. This is illustrated by the following comparison: The quantity of ash in oats is approx.: 5-8% by weight, whilst good quality pellets do not contain more than 0.4-0.5% ash by weight.
  • By choosing a burner and boiler combination including automatic ash discharge, the work is
  • made much easier.
  • The ash can easily be returned to the soil, thus reducing the need for fertiliser. Combustion with biofuel does not increase the amount of carbon dioxide (a greenhouse gas) that is released into the atmosphere.

Oat ash removal.


Advice on biofuel – raw materials

For some time pellets made from chips or bark have been a common biofuel, but the market now offers alternative raw materials such as oats. The important factors are energy value, ash content, the volatile matter content, the environmental impact and, last but not least, the price.You should choose a fuel which has the lowest cost per unit of energy, taking into account the fuel's function in the burner, its ash content and environmental impact.

The AgroLine 20 burner is designed to be able to burn whole oat kernels.

Technical data for AgroLine 20 burner
Feed output, oats 10-20 kW
Combustion efficiency approx.: 90-95%
Voltage 230 VAC
Length from the boiler 450 mm
Height outside the boiler 400 mm
Width outside the boiler 240 mm
Minimum boiler opening Height x width 160×160 mm
Clearance above the combustion pipe in the boiler 100 mm
Chimney requirements Condensing combustion

Control, regulation and monitoring


The AgroLine 20 burner is controlled by the operation thermostat supplied, normally 75-85ºC. The control device supplied for the burner then regulates the operation of the burner itself as well as monitoring its functions. The burner's functions comply with the requirements for P-marking.


 


Download Boiler Technical Details (pdf)




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