Riva Gas Boiler 

The Biasi Riva is a wall mounted, standard efficiency boiler perfectly suited for systems utilizing traditional baseboard heating elements.  To reduce fuel consumption, the Riva operates “on-demand”, only firing when there is a call of heat or domestic hot water.  This boiler also modulates to perfectly match the heating or domestic load.

Riva Plus Gas Boiler 

The Biasi Riva Plus offers a unique condensing technology that increases the efficiency of the standard Riva to 90% AFUE With the inclusion of a recouperator, the Riva Plus can extract the remaining heat from the boiler’s exhaust gas and transfer that heat into the return water destined for the boiler’s primary heat exchanger.