Exploring Viessmann 35kW boiler reviews reveals a range of powerful gas condensing units like the Vitodens 050-W and 100-W, tailored for medium to larger UK homes needing robust heating and hot water without compromising on space or sustainability.
Viessmann 35kW Boiler Review: At a Glance
| Aspect | Details |
| Boiler Type | Combi (gas condensing, wall-hung) |
| Outputs Available | 35kW (e.g., Vitodens 050-W, 100-W models) |
| Efficiency | Up to 98% (ErP A-rated) |
| Hot Water Flow Rate | Up to 14 l/min |
| Dimensions | Compact (e.g., 707 x 400 x 350 mm for 050-W); lightweight around 36kg |
| Warranty | 5-7 years standard (extendable to 10-12 years with installer registration and filter) |
| Estimated Supply Cost | £700–£1,200 |
| Estimated Installed Cost | £2,000–£5,000 (includes fitting and extras) |
| Running Costs | £800–£1,200 annually for a 3-4 bedroom home, with savings from high modulation |
| Maintenance & Servicing | Annual Gas Safe check; durable components reduce frequency of issues |
| Trustpilot (Brand) | 4.4/5 from over 5,300 reviews |
| Which? (Brand) | 81% score; Best Buy for efficiency and reliability |
| Best Suited For | Medium-large homes, 2-4 bedrooms, 1-2 bathrooms |
| Key Features | MatriX-Plus burner, Inox-Radial heat exchanger, ViCare app, weather compensation, hydrogen-ready |
Viessmann’s 35kW boilers, such as the Vitodens 050-W combi, deliver high performance for properties with multiple bathrooms, blending compact design with top-tier German engineering for reliable daily use. This table provides a snapshot of key attributes to guide your initial understanding.
Pros and Cons
Pros:
- Top-tier efficiency for significant bill reductions.
- Compact and quiet, ideal for family living.
- Durable stainless steel components for long life.
- Smart app control for easy remote management.
- Extendable warranties provide strong reassurance.
Cons:
- Higher initial outlay than budget brands.
- May require specialist installers in some areas.
- Less widespread service network than UK giants.
Efficiency
Efficiency peaks at up to 98% in Viessmann 35kW models through advanced condensing tech and the MatriX-Plus burner, which adapts to gas quality for optimal combustion and minimal waste. This high rating helps slash fuel consumption in UK households with steady demands, supporting lower carbon footprints.
Specs
Specs for 35kW units like the Vitodens 050-W include a modulation range down to 1:10 for precise control, supporting up to 20 radiators with flow rates ideal for family use. The compact footprint fits neatly in kitchens or utilities, with durable stainless steel construction ensuring longevity in varied installations.
Features and Technology
Features and technology highlight the Inox-Radial heat exchanger for corrosion resistance and the ViCare app for remote diagnostics and scheduling. Weather compensation adjusts output automatically, while low-emission burners meet eco regs, making it a smart choice for modern energy management.
Cost of the Unit
Cost of the unit starts at around £700 for basic 35kW combis, rising to £1,200 for feature-rich variants, offering premium build at a competitive mid-range price point.
Cost with Installation
Cost with installation adds £1,200–£3,800 for Gas Safe professional work, factoring in flue, controls, and any system adaptations, resulting in totals from £2,000 to £5,000 based on home complexity.
Running Costs
Running costs benefit from 98% efficiency, potentially saving £250–£450 yearly over older models in a three-bedroom setup, influenced by insulation and app-optimised usage for consistent savings.
Which? and Trustpilot Ratings
Which? and Trustpilot ratings affirm Viessmann’s quality, with an 81% Which? score and Best Buy status for reliability; Trustpilot’s 4.4/5 from over 5,300 users praises quiet operation and efficiency, though some note service variability.
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Is the Viessmann 35kW Boiler Right for You?
The Viessmann 35kW boiler suits demanding heating setups with its power and smarts. Consider these points to determine fit.
Choose the Viessmann 35kW boiler if…
- Your home has 2-4 bedrooms with consistent hot water needs.
- Space-saving compact design fits your installation constraints.
- Premium efficiency and app features align with your eco goals.
- Extended guarantees appeal for landlord peace of mind.
Don’t choose the Viessmann 35kW boiler if…
- Budget prioritises cheaper entry-level alternatives.
- Your property has low demands better suited to smaller outputs.
- Widespread local servicing is essential in remote areas.
Need a New Boiler Quote?
Unlock efficient heating for your home—request a new boiler quote from Boilers 2 Go. Our experts provide customised advice and competitive choices without obligation.
FAQs
How Does the MatriX-Plus Burner Adapt to Gas Variations?
The MatriX-Plus burner self-adjusts to fluctuating gas quality using Lambda Pro control, maintaining optimal combustion for consistent performance.
What Hybrid Capabilities Does the 35kW Offer?
It integrates with heat pumps or solar via optional modules, enabling low-carbon hybrids that boost overall system efficiency.
Can the 35kW Handle Underfloor Heating Effectively?
Its wide modulation range supports low-temperature flows for underfloor systems, providing even warmth without overworking the unit.
What Diagnostic Tools Aid Troubleshooting?
ViCare app sends real-time alerts for issues like pressure drops, allowing proactive fixes before breakdowns occur.
How Resistant Is the Inox-Radial Exchanger to Hard Water?
The stainless steel design features a self-cleaning effect from condensate, minimising scale in hard water regions like the Southeast.
I’m Penny North, a home energy heating expert. My mission is to demystify new boilers and complex heating systems to help you achieve a warm, cosy home with lower energy bills and a smaller environmental footprint.