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RBI Torus condensing watertube boilers and water heaters now feature 10:1 turndown, further optimizing performance efficiency. Torus utilizes a pressure-driven air/fuel mixing system to reliably provide up to 10:1 turndown without the negative effects often seen in high turndown systems. This unique pressure-driven system has no moving parts and eliminates common nuisance failures including ignition lockouts. Torus compact high-performance units are available in sizes ranging from 1250 to 4000 MBH with AHRI Certified efficiencies of up to 97.5% on Boilers and 98% on water heaters.
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