We make custom built blowers as per the customer specifications. Volume & pressure of these Air combustors are at 20oC. Our standard models are listed below kindly contact us for blowers other than listed below. This results in recycling of waste heat back to the furnace and saves about 12-15% of fuel oil. Normally the PAYBACK PERIOD OF INSTALLING ENCON RECUPERATOR IS ABOUT 5-7 MONTHS. Medium Pressure Model H.P. C.F.M NM3/HR. PRESSURE ENCON 28/3 3 300 510 28” w.g. ENCON 28/5 5 550 930 28” w.g. ENCON 28/7.5 7.5 850 1450 28” w.g. ENCON 28/10 10 1200 2040 28” w.g. ENCON 28/15 15 1700 2890 28” w.g. ENCON 28/20 20 2200 3740 28” w.g. ENCON 28/25 25 3000 5100 28” w.g. ENCON 28/30 30 3500 5950 28” w.g. ENCON 28/40 40 4800 7900 28” w.g. High Pressure Model H.P. C.F.M NM3/HR. PRESSURE ENCON 40/5 5 400 680 40” w.g. ENCON 40/7.5 7.5 600 1020 40” w.g. ENCON 40/10 10 800 1360 40” w.g. ENCON 40/15 15 1200 2040 40” w.g. ENCON 40/20 20 1600 2720 40” w.g. ENCON 40/25 25 2000 3400 40” w.g. ENCON 40/30 30 2400 4080 40” w.g. ENCON 40/40 40 3200 5200 40” w.g. All the units are mounted on a stable steel frame and have inlet & outlet connections