Viessmann Vitodens 100-W B1HA/B1KA Combi Boiler Technical Data Manual

Technical data manual for the Viessmann Vitodens 100-W B1HA and B1KA wall-mounted gas-fired condensing boilers, detailing specifications, dimensions, and…


Viessmann Vitodens 100-W B1HA/B1KA Combi Boiler Technical Data Manual - cover page
Brand
Viessmann
Category
Other
Document type
Datasheet
Language
English
Pages
32
File format
PDF
File size
1015 KB
Published
15 October, 2026
Updated
15 October, 2026
MD5 checksum
A88447F169334B12B9CBF3B176DD5BD3

About this manual

This document serves as a technical data manual for the Viessmann Vitodens 100-W B1HA series and B1KA combi boiler. It describes a wall-mounted, gas-fired condensing boiler designed for on-demand domestic hot water and space heating. Key features include a modulating stainless steel MatriX cylinder burner, a stainless steel Inox-Radial heat exchanger, and an outstanding efficiency of 95.0% A.F.U.E. The B1KA model specifically includes an on-demand hot water unit with a built-in diverting valve and a Grundfos 3-speed pump.

What's inside

  • Product Information
  • Specifications
  • Boiler Dimensions
  • Minimum Clearances
  • Technical Data
  • Venting Options
  • Standard Equipment
  • Heating Capacity
  • Flue Gas Data
  • Noise Level

Specifications

Efficiency (A.F.U.E.)95.0%
Heating Input Range21 to 125 MBH (6.2 to 36.6 kW)
Heat Exchanger MaterialStainless steel Inox-Radial
Boiler Weight79.4 lbs (36 kg)
Max. Operating Pressure45 psig (3 bar)
Boiler Water Content1.02 USG (3.88 L)
Max. Gas Supply Pressure14 "w.c.

Frequently asked questions

What is the efficiency rating of the Vitodens 100-W B1HA/B1KA boilers?

The boilers have an outstanding efficiency of 95.0% A.F.U.E. on all models.

What are the heating input ranges for the B1HA and B1KA models?

The heating input ranges from 21 to 125 MBH (6.2 to 36.6 kW).

Does the B1KA model include a built-in hot water unit?

Yes, the B1KA comes equipped with an on demand hot water unit providing reliable hot water without a DHW tank.

What is the maximum operating pressure for the boiler?

The maximum operating pressure at 210ºF (99ºC) is 45 psig (3 bar).

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