Vaillant ecoFIT Sustain 835 (ErP) Combi Boiler Only

Vaillant ecoFIT Sustain 835 (ErP) Combi Boiler

The Vaillant ecoFIT Sustain 835 (ErP) Combi Boiler Only is a practical choice for customers comparing system boilers, offering dependable heating performance for homes with a separate hot water cylinder. If you are reviewing system boiler prices, this Vaillant model gives you a clear option to compare by output, fuel type, controls and installation requirements before choosing the right boiler for your property. The Vaillant ecoFIT Sustain 835 combi boiler is a compact, efficient, and ultra-quiet combination boiler designed to provide both heating and hot water directly from one unit. With no need for a separate hot water cylinder or cold water tank, this combi boiler is an ideal space-saving solution for modern homes. This Quiet Mark-approved boiler is designed for ultra-quiet operation, making it suitable for installation in kitchens, cupboards, or utility rooms. Its compact size and flexible installation options, including top and rear flue connections, allow it to be installed in a wide range of locations to suit your property. The ecoFIT Sustain 835 also features automatic purging assistance and a high-spec aluminium heat exchanger, helping to make installation easier while improving efficiency and performance. With a high-efficiency pump, this boiler helps reduce energy consumption and standby losses while delivering excellent hot water performance, making it ideal for homes with higher hot water demand.

Key Features & Benefits

• Compact and Space-Saving Design
• Quiet Mark Approved for Ultra-Quiet Operation
• Combi Boiler - No Cylinder or Loft Tank Required
• Flexible Installation with Top or Rear Flue Options
• Automatic Purging Assistance for Easier Installation
• High Specification Aluminium Heat Exchanger
• High Efficiency Pump for Reduced Energy Consumption
• A Rated for Heating and Hot Water
• Modern, Attractive Boiler Design
• 2 Year Warranty (Subject to Manufacturer's T&Cs)

Key Specifications

• Product: Vaillant ecoFIT Sustain 835 (ErP) Combi Boiler
• Manufacturer: Vaillant
• MPN: 10020394
• SKU: 70274
• GTIN: 4024074778944
• Product Type: Gas Combi Boiler
• Model: ecoFIT Sustain
• Central Heating Output: 18kW (61,000 BTU)
• Max Domestic Hot Water Output: 35kW
• Domestic Hot Water Flow Rate: 14.1L/min @ 35°C Rise
• ErP Heating Rating: A Rated
• ErP Hot Water Rating: A Rated
• Gross Weight (Including Packaging): 35kg
• Net Weight: 32kg
• Height: 700mm
• Width: 390mm
• Depth: 295mm
• Warranty: 2 Years (Subject to Manufacturer's T&Cs)

What Is a Combi Boiler?

A combi boiler provides both heating and hot water directly from the boiler without the need for a separate hot water cylinder or cold water tank. Hot water is delivered on demand, making combi boilers a space-saving and energy-efficient option for many homes.

FAQs

What size house is the ecoFIT Sustain 835 suitable for?

This combi boiler is typically suitable for medium to large homes with higher hot water demand, such as properties with multiple bathrooms.

Do I need a hot water cylinder with a combi boiler?

No, a combi boiler heats water on demand and does not require a separate hot water cylinder.

Can this boiler be installed in a cupboard?

Yes, the compact size and quiet operation make it suitable for installation in a kitchen cupboard or utility room.

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