Reducing the toxicity and amount of emission pollutants coming from brick kilns is also an expected benefit to implementing energy efficient technology. 2.1: Boat-to-rotary kiln upgrade. Roughly estimated GHG emission reductions: 0.03 MtCO2eq/year for 8 rotary kiln replacing same amount of boat kilns. Each rotary efficient kiln is estimated at USD 200,000 cost. In monetary terms, savings represent USD 1.57 million in avoid wood biomass cost each year, at an average value of USD 40.61/ton. 2.2: Modified boat-torotary kiln upgrade. Roughly estimated GHG emission reductions: 0.01 MtCO2e/year for 6 rotary kiln replacing same amount of modified boat kilns. Each rotary efficient kiln is estimated at USD 200,000 cost.