The thing called a biomass boiler is a unit that will burn things such as, logs and things that are made up of tree and plant type material. Modern biomass burners will not leave much ash left as they operate very efficiently as a burner. They come mostly with an feeder that operates automatically, meaning that the hopper probably only needs to be filled once a day and then left alone. Roehampton Plumbers can advise about biomass.Are they green?:The simple answer is yes, as our trees and plants absorb carbon dioxide throughout their lives. Therefore burning them will just release back the level that they would have produced had they just simply died and rotted. That means that there is no increase in CO2. Well, there is actually there is a slight net increase, as you need to process the wood and transport it to your home. On the whole their carbon footprint is quite small. A Roehampton Plumber understands carbon footprints. Biomass on average is around 14 times bulkier than oil, which means storage can be a problem. Therefore in order to heat your home for the same amount of time you need 14 times the area for storing. The biomass burner can cause a size problem, well rather, the hopper being the bulky culprit. The biomass option is quite good alternative but will not be a very good long term commitment for all of us. Having said that, someone with land that has access to a sustainable woodland or any arable by-products would be silly not to consider biomass as an alternative source of fuel production. There are grants available and a biomass boiler will, in the long term most certainly pay for itself, and of course with the added bonus that you wont be adding carbon dioxide to the atmosphere, allowing your ecological conscience a break.