Responding to sectarian terrorist attacks and the rise of ISIL, Shia militias have carried out violent reprisals against Sunni civilians. On 10 June Amnesty International reported that a Yazidi militia killed 21 Sunni civilians and abducted another 40 in Jiri and Sibaya villages, Sinjar.
Cost â Biomass versus conventional boilers. Biomass boilers start at about Â£7,000 for a 12kW domestic version â which is sufficient to provide heat and hot water for a 4-bed house.A comparable sized gas boiler will only cost Â£2500 to install. A bigger biomass boiler with an auto-feed hopper may cost closer to Â£12,000.ost â Biomass versus conventional boilers. Biomass boilers start at about Â£7,000 for a 12kW domestic version â which is sufficient to provide heat and hot water for a 4-bed house.
A modern condensing boiler will have an efficiency of around 90 per cent, whereas a non-condensing boiler â even a new one â will only offer about 75 per cent. In a typical semi-detached house, this difference could mean a saving of around Â£150 per year. modern condensing boiler will have an efficiency of around 90 per cent, whereas a non-condensing boiler â even a new one â will only offer about 75 per cent. In a typical semi-detached house, this difference could mean a saving of around Â£150 per year.