Vaillant ecoFIT Sustain 835 (ErP) Combi Boiler Only

Vaillant ecoFIT Sustain 835 (ErP) Combi Boiler

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.