Viessmann’s comprehensive range offers individual solutions and efficient systems for many application areas. This includes a complete line of high-efficiency oil and gas-fired boilers, solar thermal systems, and control technology.
Whether the project is new construction or retrofit, single-family home, or district heating networks, Viessmann has an ideal heating solution. From individual system components to fully integrated systems – all products are future-proof and economical.
High-efficiency domestic hot water (DHW) and space heating are now combined in the new Vitodens 100-W, B1KA Combi boiler. Say goodbye to your DHW tank and experience reliable hot water all day long with an outstanding flow rate of up to 3.7 GPM†, plus added cost savings with the energy-saving on-demand indirect-fired design. Installation is easy with the new B1KA-35 B1KA-125 Combi boiler as the brazed-plate stainless steel heat exchanger, pressure bypass valve, DHW temperature, and flow sensors, 3-speed pump and 3-way diverting valve are built-in to form one compact, lightweight, space-saving unit.
TWith its outstanding design price/performance ratio, the Vitodens 100 B1KA-35 is the perfect mix of performance and value. Its compact design, zero clearance to combustibles, and extremely quiet operation make the Vitodens 100 B1KA-35 an ideal choice even in the smallest spaces. Plus, with a residential lifetime warranty, you can be sure your investment will deliver long-lasting performance year after year.
Stainless steel is the best choice for long-term reliability. That’s why the Vitodens 100 B1KA-35 is equipped with a stainless steel Inox-Radial heat exchanger and MatriX cylinder burner. Developed and manufactured by Viessmann, these high-quality stainless steel components maximize performance and reliability. Plus, the “self-cleaning” heat exchanger contributes to the boiler’s long service life and dependable performance.
The Vitodens 100 B1KA-35 offers the right solution for every demand – from multiple venting options to fuel flexibility (NG or LP) right out of the box. Plus, installation, service, and maintenance are designed to be fast and easy with all pipe connections located at the bottom and serviceable components easily accessible from the front.
The Vitodens Series is a very affordable top-of-the-line high-efficiency boiler. The reputation of Viessmann boilers is known and respected all around the world. It is no coincidence that most people think of Viessmann when asked about the best boiler in the world.
- ModelB1HA125
- Fuel TypeNatural Gas
- Combustion TypeCondensing
- Vent TypeDirect Vent
- Modulating/StagingModulating
- Mount TypeWall
- Minimum Altitude0 Feet
- Maximum Altitude10000 Feet
- Includes PumpYes
- AFUE95%
- Maximum Input Capacity125000 BTU
- Minimum Input Capacity21000 BTU
- DOE Heating Capacity116000 BTU
- Net I=B=R Capacity101000 BTU
- Ultra Low NOx EmissionsNo
- Voltage115 Volts
- Phase1
- Frequency60 Hz
- Flue Connection Size2 Inches
- Gas Connection Size3/4 Inch
- Supply Connection1 Inch
- Return Connection1 Inch
- Product Height30 1/8 Inches
- Product Width15 3/4 Inches
- Product Depth79.4 Pounds
- Product Weight88 Pounds
- CSA ListedYes
- ASME CertifiedYes
- Energy Star ListedYes
- AHRI CertifiedYes
- AHRI Reference Number10594297
$99
