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P-K MACH™ Series Boiler

The Patterson-Kelley condensing hot water boiler is certified at 92% efficiency based upon the operating conditions specified for testing under ANSI Z21.13/CSA 4.9. The efficiency for a condensing boiler changes with three key factors: water flow rate, entering water temperature, and firing rate. The efficiencies shown here are based on a water flow rate corresponding to a 20° ?T at high fire, and efficiencies are shown at three firing rates for the entering water temperature indicated. Note that under certain operating conditions the efficiency can be as high as 99%!

• Achieve up to 99% Efficiency
• Full Modulation Burner with 5:1 Turndown
• Designed for Full Condensing Service
• Aluminum Alloy Metallurgy for Superior Corrosion Protection
• Low O2/Co/NOx standard
• Whisper Quiet

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