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R2K 55

R2K 55.jpg

Model: R2K 55 Wall-Hung Multi-Use Heating only or Combi-Tankless Boiler

Series: Combi-Tech

The R2K 55 is an Energy Star rated condensing wall-hung multi-use boiler from the Combi-Tech series. With an industry-leading 96% AFUE rating, this boiler with its unique stainless steel heat exchanger can be used for hydronic heating only or both hydronic heating and on demand domestic hot water in a single package. The 10-1 modulation feature ensures low NOx emissions, while the built-in circulator pump, expansion tank, and air bleeders make installation easy. The DHW flow rate of this boiler is 7.11 GPM at a 54°F rise (5 GPM at a 77°F rise). The boiler is equipped with the Digitech® user-friendly interface, complete with outdoor rest, and can be vented using 2" PVC, CPVC, or Polypropylene up to 60' per vent run (120' total). The R2K 55 has an anti-freeze function protection and a valve pack. It is available in natural gas or propane and is wifi compatible. This boiler is made in Italy and has a maximum BTU/h of 187,667.


Key Features:


· Industry-leading 96% AFUE rating!

· Condensing wall hung combi/ tankless boiler

· Revolutionary Combi-Tech® stainless steel heat exchanger

· Hydronic heating and on-demand hot water in one package

· 10-1 modulation – low NOx emissions

· 187,667 BTU/h

· DHW flow rate – 7.11 GPM @ 54°F rise (5 GPM @ 77°F rise)

· Built-in circulator pump, expansion tank, and air bleeders

· Digitech® user-friendly interface c/w outdoor rest

· 2" PVC, CPVC, and Polypropylene vent capable of up to 60' per vent run (120' TOTAL)

· Intelligence meets simplicity – service-friendly design

· Anti-freeze function protection

· Valve pack

· Available in natural gas or propane

· Wi-Fi compatible

· Made in Italy

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