Can be vented
  with CPVC pipe!
  Extruded Aluminum Heat Exchanger
  The XPak utilizes an extruded, single tube design made of
  6063-T1 aluminum alloy for the heat exchanger. The pressure vessel is rated for 45PSIG and is ASME stamped and National Board registered. With over 250,000 units sold throughout Europe, you can
  depend on many years of trouble free operation. Thats what makes this boiler a Raypak!
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            Raypak is proud to introduce the all new XPak Modulating, Condensing Wall Hung Boiler in model sizes 85 and 120.. The XPak achieves 92.6% thermal efficiency at full fire. Certified for
            CPVC, Polypropylene and SS venting. Direct vent ready, install as concentric vent or twin penetration for total job site flexibility. Combustible clearance requirement is 1" right and
            left side, 24" access area needed for front and 12" for the top. Bottom water, gas and electrical connections, top mounted flue gas and intake air connections.  | 
      
| Energy Star requirements. Zero governor gas valve with negative pressure gas regulator allows for greater |