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.
1 According to AutomaticBurnerBoiler.com, replacing an old oil-fired boiler can cost from around $7,000 to $11,000, depending on what the client wants to use as a replacement for the boiler.2  Generally, oil boilers that are 15 to 20 years old already have a low efficiency rating. According to AutomaticBurnerBoiler.com, replacing an old oil-fired boiler can cost from around $7,000 to $11,000, depending on what the client wants to use as a replacement for the boiler.