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Riva Combi Boiler & DHW Heater 84.7% EFI

The Biasi Riva boilers are factory shipped with all primary system components installed and contained within the boiler, making installation of these units fast and simple. All Riva boilers are ASME and CSA certified to ensure the utmost safety and quality.



Riva Combi


Natural Gas or Propane

Btu Input

49,500 - 122,800

Btu Output

37,000 - 101,000

Flue Size

3" Biasi Riva  Vent


165 lbs








Internal 16 Gallon

DHW Flow

3.3 gpm @ 65deg rise

Safety Features
Frost protection system
- Self diagnostic control system
- Safety flow switch to prevent thermal
shock in the event of low or no water in the heating system
- Internal high limit temperature control

- Blocked flue safety pressure switch

- Circulator protection if boiler is idle for 24 hours

So Easy to Install and Maintain

Within the white enameled casing of the RIVA are a perfectly matched piped and wired set of components including expansion tanks (Heat & DHW), circulator, vents, valves and controls which operate in complete silence. Minimal exposed external boiler piping or boiler components are required to install the boiler. And since the RIVA is wall mounted, access to major components is at chest level for ease of installation and service.


- Warranty: 2 years complete,

10 years Heat Exchanger

Technical Advantages

- ASME certified heat exchanger

- CSA certified
- Natural gas or Propane compatible
- Gas valve modulation in both central
heating and domestic hot water modes
- All parts internalized
- Electronic spark ignition
- Direct Vent or Roof Vent

separate or concentric systems available

- Wall-Mounted

Documentation   Biasi Riva Combi Documentation
NG & LP On Demand Boilers   Natural Gas & Propane Wall Hung Demand Boilers
Indoor Boilers   Indoor Propane, Natural Gas, Fuel Oil & Wood Boilers
Contact Information

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No Utility Bills Inc. All rights reserved. Last modified: 04/18/15