Viessmann VR1-91 Boiler Block & Jacket (Needs Burner) (2 Available)


2 units Available, Images are two separate units.

Both Units Located in Framingham

SKU: .431418-FRA-1 Categories: , ,


The Vitorond 100, with its triple-pass heat exchanger, is designed to achieve a high level of efficiency while providing exceptional comfort. Unlike single-pass boilers, the Vitorond 100 guides flue gasses through the heat exchanger three times, allowing the greatest amount of heat extraction to be achieved. This design significantly increases the efficiency of the boiler and results in excellent fuel utilization, reducing emissions and your heating costs.

Maximum heat extraction

And efficiency thanks to the triple-pass heat exchanger.

Long service life

And maximum reliability with extremely durable cast iron heat exchanger.

Clean and efficient combustion

With stainless steel combustion chamber insert.

Flexible installation

No need for a chimney and combustion air supply opening with the direct vent option (VR1 models 91 to 140).

Low maintenance cost

With service-friendly burner and easy-to-clean flue gas passageways.

Quiet operation

With Beckett or Riello burner.

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