Viessmann Vitodens 200-W 285,000 BTU Gas Fired Wall Mounted Condensing Boiler - B2HA285

Turn Big‑Demand Heating Into Everyday Comfort With The Viessmann Vitodens 200‑W B2HA‑285 | 285,000 BTU Wall‑Hung Condensing Boiler

Upgrading a larger home or light‑commercial space? The Vitodens 200‑W B2HA‑285 is a wall‑mounted, gas‑fired condensing boiler that brings high output and smart control together in a compact footprint. It modulates from 71,000 to 285,000 BTU/h to match real‑world loads, delivers 92% AFUE, and uses Viessmann’s proven Inox‑Radial stainless steel heat exchanger with the MatriX cylinder burner and Lambda Pro combustion management for efficient, clean performance.

• Brand: Viessmann
• MPN: B2HA‑285 (Vitodens 200‑W)
• Type: Wall‑Mounted, Condensing Gas Boiler (Heating‑Only)
• Fuel: Natural Gas or Propane (no conversion kit required; see manual for setup)
• Input Range: 71,000–285,000 BTU/h
• AFUE: 92%
• Modulation Ratio: Up to 6.5:1
• Heat Exchanger: Inox‑Radial Stainless Steel (self‑cleaning design)
• Burner: Stainless Steel MatriX Cylinder Burner with Lambda Pro combustion control
• Controls: Advanced Viessmann control with outdoor reset; large on‑board display
• Smart Connectivity: ViCare app via optional Vitoconnect WiFi module
• Max Operating Pressure: 60 psig
• Venting: Direct‑vent sealed combustion; concentric 100/150 mm (≈4"/6") or two‑pipe systems
• Max Equivalent Vent Length: Up to ~180 ft (layout dependent; see manual)
• Heating Connections: 1‑1/2" NPT supply & return
• Gas Connection: 3/4" or 1" NPT (per installation; see manual)
• Electrical: 120V, 60 Hz
• Dimensions (W × D × H): ~19" × 21" × 43.5"
• Weight: ~194 lb
• Cascade/Common Venting: Cascade up to 8 boilers; common‑vent options available
• Warranty: Limited lifetime heat exchanger (residential; see terms)

High Output, Right‑Sized Efficiency

The B2HA‑285’s wide modulation range—71 to 285 MBH—helps it run steadily through mild shoulder seasons and ramp up for peak winter demand. That means fewer starts and stops, quieter operation, and fuel savings over time.

Stainless Steel Core For Long Service Life

Viessmann’s Inox‑Radial stainless steel heat exchanger paired with the MatriX cylinder burner is engineered for long‑term efficiency. The self‑cleaning heat‑exchanger geometry helps shed condensate and reduce scaling.

Smart, Clean Combustion

The Lambda Pro combustion system automatically adapts to gas quality and vent conditions to maintain efficient, low‑NOx combustion—reducing setup time and keeping performance dialed‑in season after season.

Compact, Installer‑Friendly Design

A slim ~19‑inch‑wide cabinet and front‑access components simplify installs and annual service. With direct‑vent options and vent runs up to ~180 ft (configuration‑dependent), the 200‑W is flexible for retrofits and new builds.

Ready For Indirect Hot Water & Multi‑Boiler Cascades

Pair the heating‑only B2HA‑285 with a Vitocell indirect tank for abundant domestic hot water. For larger loads, you can cascade up to eight Vitodens 200‑W units and common‑vent where permitted.