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A white Viessmann Vitodens 100-W B1GA 19kW heat gas boiler on a green gradient background, with "Fully Fitted" and "£0 Deposit" in yellow bubbles. Text below describes the product.

Viessmann Vitodens 100-W B1GA 19kW Heat Gas Boiler

£3,194.00

Efficient heat only boiler for medium homes, with robust performance and flexible installation.

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10 in stock

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The Viessmann Vitodens 100-W B1GA 19kW Heat Gas Boiler is a condensing heat only boiler for medium-sized homes with up to 12 radiators, requiring a hot water cylinder and feed/expansion tank. It delivers a 19kW central heating output and a 94% seasonal efficiency rating (ErP A-rated). Its size (700x400x350mm, 33kg) supports cupboard installation with no side clearance needed. Equipped with the Inox-Radial stainless steel heat exchanger, a MatriX-Plus burner with Lambda Pro Control for automatic gas adjustment (natural gas, LPG, or 20% hydrogen blends), and an LCD touchscreen, it ensures reliable operation. Quiet Mark approved, it offers flexible flueing, weather compensation, and OpenTherm compatibility for smart control. It comes with a 10-year warranty, extendable to 12 years with a Viessmann-accredited installer, ideal for traditional systems with moderate heating needs.

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Specification
Power Output (Heating)19 kW
Power Output (Hot Water)Dependent on Cylinder
Boiler Depth285 mm
Boiler Height600 mm
Boiler Width375 mm
Weight23 kg
BrandViessmann
ColourWhite
Boiler TypeHeat Only
Fuel TypeNatural Gas or LPG
Heat Exchanger MaterialStainless Steel (Inox-Radial)
Energy Efficiency RatingA (ErP)
Display TypeLED Touchscreen
Fitting RequirementsMust be Fitted by Gas Safe Registered Engineer
Mounting System SuppliedWall-Mounting Bracket Supplied
Indoor/Outdoor UsageIndoor
Connector TypeStandard Hydraulic Connections
Manufacturer Guarantee5 Year Warranty (Extendable to 12 Years with Viessmann Trained Installer)
Model Name/NoVitodens 100-W B1GA 19kW
Pack Size1
Parent ColourWhite
Pieces in Pack/Case1 Boiler
Product TypeGas Heat Only Boiler
Range NameVitodens 100-W
Flue LengthUp to 12 m (60/100 mm)
Modulation Range1:10
Noise Level45 dB(A) (Estimated)
Annual Energy Consumption92% Efficiency (Estimated)
Temperature CoefficientNot Applicable
CertificationsErP A-Rated, Gas Safe Compliant, 20% Hydrogen Blend Ready

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