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B1HE-120

Viessmann 7722773 Vitodens 100-W B1HE-120 120,000 BTU High Efficiency Hyrdronic Boiler

by Viessmann

HardwarePlumbingPlumbing Fittings & Supports

Manufacturer part numberB1HE-120
Plumbing Deals SKUVIESB1HE120
AvailabilityIn stock at Plumbing Deals, as of 18 Oct 2026
$3,921.62 at Plumbing Deals · as of 18 Oct 2026
See current price at Plumbing Deals

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Description

From Plumbing Deals' product listing.

Viessmann 7722773 Vitodens 100‑W B1HE‑120 | 120,000 BTU High‑Efficiency Wall‑Hung Condensing Hydronic Boiler Looking for reliable heat without taking up floor space? The Vitodens 100‑W B1HE‑120 is a heating‑only, wall‑hung gas condensing boiler that’s efficient, quiet, and easy to live with. It runs at 95% AFUE, modulates with a wide 10:1 turndown ratio, and uses an Inox‑Radial stainless steel heat exchanger to help keep performance high season after season. Built‑in WiFi works with ViCare for simple control from your phone. Brand: Viessmann MPN: 7722773 (Vitodens 100‑W B1HE‑120, Heating‑Only) Type: Wall‑Mounted, Gas‑Fired Condensing Hydronic Boiler (Heating‑Only) Fuel: Natural Gas or LP (software conversion) Input Range: 12–120 MBH DOE Heating Capacity: 113 MBH Net AHRI (Water): 98 MBH AFUE: 95% Turndown Ratio: 10:1 Max Operating Pressure: 60 psig Venting (Coaxial): 80/125 mm concentric (5"×3") Venting (Two‑Pipe): 3" or 4" polypropylene/CPVC (equivalent lengths commonly up to ~98 ft for 3" and ~148 ft for 4") Heating Connections: 3/4" NPT (supply/return) Gas Connection: 3/4" NPT Electrical: 120V, 60 Hz Dimensions (W × D × H): ~17.7" × 19.7" × 33.8" Included: 30 psi pressure relief valve, installation fittings, outdoor temperature sensor Warranty: Limited lifetime heat exchanger (residential; see terms) High Efficiency, Lower Fuel Bills At 95% AFUE with a 10:1 turndown ratio, the B1HE‑120 matches output to demand to reduce cycling and help cut gas costs. Heating‑Only, Ideal For Indirect Hot Water Keep space heating and domestic hot water separate. Pair the B1HE‑120 with an indirect tank for abundant hot water and simple controls. Stainless Steel Heat Exchanger The Inox‑Radial stainless‑steel heat exchanger is purpose‑built for condensing operation—resisting corrosion and supporting long service life. Compact, Quiet, Easy To Service A slim, 17.7"‑wide cabinet and front‑access components make tight installs and annual service straightforward. Flexible Fuel & Venting Options Convert between natural gas and LP in software. Choose 80/125 mm concentric or 3"/4" two‑pipe venting to handle longer runs and tricky layouts. Smartphone Control With ViCare Built‑in WiFi connects to the ViCare app so you can view temperatures, set schedules, and receive alerts right from your phone. Technical Data Manual Installation and Service Manual Product Flyer Application Guide