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Viessmann Vitodens 100-W Open Vent Boiler

Viessmann Vitodens 100-W Open Vent boiler prices start from £935 (VAT incl) without installation costs

The Viessmann Vitodens 100-W Open Vent boiler is a wall mounted gas fired condensing boiler.   It comes in sizes 13KW, 16KW, 19KW, 26KW, and 35KW depending on the size and requirements of your property. It has a standard 5 year parts and labour warranty which is subject to terms and conditions. The Vitodens 100-W boiler can be purchased for an average price £935 (source:Which & PlumbNation) inclusive of VAT.

The  boiler is 97% energy efficient (The SEDBUK rated).  These efficiency cost savings are driven from making use of Viessmann’s unique corrosion-resistant stainless steel Inox-Radial heat exchanger.  For peace of mind, this component has an additional 10 year warranty attached to it.

The Vitoden 100-W also has a large user-friendly display unit.  With a simple upgrade you can make use of Viessmann’s intelligent weather compensation option.  This detects outside weather changes and automatically adjusts the flow temperature of the boiler.  This functionality will serve you well on a cold winters night.  It will also allow you to save on energy bills.

Vitodens 100-W Open Vent Overview

ModelTypeDimensionsMaximum Flow RateOutputEfficiency RatingTypical Price
Vitodens 100-W Open Vent 19kW WB1BHeat OnlyH – 600 mm
W – 375 mm
D – 285 mm
N/A19 kWA 90% and above£794
Vitodens 100w open vent 13kw wb1bHeat OnlyH – 600 mm
W – 375 mm
D – 285 mm
N/A13 kWA 90% and above£797
Vitodens 100-W Open Vent 26kW WB1BHeat OnlyH – 600 mm
W – 375 mm
D – 285 mm
N/A26 kWA 90% and above£950
Vitodens 100-W Open Vent 35kW WB1BHeat OnlyH – 600 mm
W – 375 mm
D – 285 mm
N/A35 kWA 90% and above£1358
Key Features & Benefits
Inox-Radial heat exchanger and cylinder burner made from stainless steelImproves Performance
SEDBUK A RatingLower gas bills
10 year warranty on Inox-Radial heat exchangerPeace of Mind
Various Kw Heating Output – 13kw, 16kw, 19kw, 26kwFor different sized homes
Very Quiet BoilerCan be installed in living areas
Weather compensation option availableHelps manage costs and comfort
LPG conversion availableWhere natural gas is unavailable
Cuts Energy BillsFuel efficient
Large user displayEase of use
Compact sizeEasy Storage
Which Rating 76%Based on reliability, Satisfaction & ease of repair
Standard 5 year parts and labour warrantyPeace of Mind

What we think of the Vitodens 100-W Open Vent Boiler

Viessmann’s Vitodens 100-W Open Vent is a solid performing boiler.  In a Which? survey, the boiler received a 5 star reliability rating. So once it installed, you won’t need to have to call the boiler engineer out any time soon.  Overall, Which? gave the boiler a 76% performance rating.   The boiler is reliable, efficient and a worthy investment.

Getting a Competitive Boiler Quote

It’s always best practice to get a boiler quota from both a national and local boiler installer.  Make you compare costs and payment terms.  Also, don’t forget to ask ask after care service.  Lastly, ensure that your installer is Gas Safe Registered and that the installation quote is fixed.

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