Why choose Maden Eco?
Maden Eco have been a family run business for nearly 20 years with experience throughout technologies, such as solar, wind and biomass, as well as having a construction department. Maden Eco have installed more than 130 domestic PV systems which are all running very efficiently and many over generating from what we first estimated. We offer a free site survey before providing the most relevant advice, and we’ll also give you a no obligation quote without charge.
If woodfuel is such a great idea, why are we not using more of it already?
Wood was indeed British people’s primary heating and cooking fuel for thousands of years. However, woodfuel fell into short supply as the population grew to tens of millions and most of Britain’s forests and woodland were removed. Coal, which was plentiful, took over as the primary fuel, later to be joined – and partially supplanted – by natural gas. Gas is popular because it is clean to handle and transport, clean burning, and very convenient, requiring little or none of the daily attention usually associated with solid fuels.
We are now in a situation where we are not using all the wood we are growing, we are increasing our forest area again, and modern technology is making woodfuel competitive with oil and LPG on cleanliness and convenience.
Does burning wood cause air pollution?
It could, but the use of clean wood from existing woodlands by small to medium-scale heating systems produces relatively low levels of emissions.
In addition, provided the fuel has been adequately dried to get its moisture content down to a specified level, and it is burned in equipment for which it is specified, woodfuel emissions will comply with the air quality standards required in our cities.
So before buying wood-burning equipment you should check with the supplier or your local Council’s environmental health department that its specifications meet local air-quality requirements.
Similarly, you should also be sure to buy your woodfuel from a reputable supplier who guarantees that the fuel’s moisture content complies with the industry standard and your equipment’s specification.
Maden Eco continue to work with the environmental authorities in each country on measures to ensure that the risk of air pollution from woodfuel is minimised.
What are wood chips?
Biomass is made up of wood chips, small pieces of logs or wood waste passed through a chipping machine, which turns them into 3mm pieces, also known as G30.
How much space do I need to store wood chips?
Wood chips need around three times the storage space of wood pellets;
Wood Chips = 250KG/m3
Wood Pellets = 650KG/m3
What is the cost wood chips?
Bought in wood chips are £120 per tonne. If you have your own supply of logs, you can have them contract chipped on site for around £50 per tonne. A contract chipper charges roughly £150 per hour during which time they can chip 15 tonnes. This means your entire annual supply of biomass fuel can be chipped in half a day, straight into your fuel store.
What are wood pellets?
Wood pellets are a type of biomass fuel, made from compacted sawdust or other waste from sawmilling and manufacturing.
What quantity of wood pellets do I need in comparison to oil?
1 Litre of oil = 2 Kg of wood pellets.
What is the cost of wood pellets for biomass?
The cost per tonne for wood pellets is typically £180 – £220.
What kind of logs can I burn in a biomass boiler?
Logs should be dry, free from coatings and preservatives and come from sustainable sources. They should be seasoned for 1-2 years before burning, to ensure as low a moisture content as possible – 20% for use in a biomass boiler. Otherwise, energy is lost in burning off excess moisture, rather than providing heat.
How long do logs take to dry?
Hard woods will take longer to season (2 years) than soft woods (1 year) and the ideal size is 500cm in length and 12-15cm in thickness.
Can you burn plastic, garden waste or coal in a biomass boiler?
No, not under any circumstances!
How often do biomass fuels stores need filling?
This would depend on how often the biomass boiler is used and the heat load requirements. The fuel store should be built to a size so that they only need to be refilled 3-4 times a year.
What storage facilities are needed for biomass fuel?
We can supply a range of solutions from bespoke wood chip and wood pellet fuel stores, to prefabricated systems with integrated storage solutions fitted as part of the biomass boiler. For further information please have a look at our biocabins page.
Get in touch
If these biomass heating FAQs didn’t answer your questions please don’t hesitate to contact us, we’d be happy to help.