Vitodens 10-W Combi Boiler B1KA 35, 125–Space Heating & On-Demand DHW

Reliable, high-quality DHW day after day

High-Efficiency domestic hot water (DHW) and space heating are now combined in the new Vitodens 100-W, B1KA Combi boiler, you can say goodbye to your DHW tank. This Combi boiler provides nothing but reliable, high-quality DHW day after day.

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  • All the benefits of a Vitodens 100 boiler, plus built-in on-demand domestic hot water.
  • DHW at the snap of your fingers all day long! Up to 3.6 GPM at a 63 F Deg maximum temperature rise with Vitodens 100 W B1KA 125
  • Optimized load matching with up to 7:1 turndown ratio
  • Energy-efficient and low-cost due to on-demand indirect-fired DHW production.
  • Reduced energy waste with fully-modulating input from boiler.
  • Space-saving and lightweight wall-mount design. More compact than any other hot water heater.
  • Quality you can count on! Stainless steel heat exchanger, built-in pressure bypass and 150 Psig working pressure rating.
  • Reliable and even DHW supply with built-in DHW temperature and flow sensors.

Warranty Information

Viessmann Limited Warranty (residential application only)–two years on covered components.

Spring Home one year labor warranty.

NOTE: Please refer to manufacturer and Spring Home Warranty Terms and Conditions for details.