BAXI 836 36kW Combi Boiler with Horizontal Flue + Filter

The BAXI 836 36kW Combi Boiler with Horizontal Flue + Filter is a premium heating package designed to provide outstanding central heating and powerful mains-pressure hot water for larger homes with higher demand. Supplied with a horizontal flue kit and an Adey MagnaClean Micro2 magnetic system filter, this complete solution delivers excellent efficiency, enhanced system protection, and long-term reliability in one convenient package.

As part of the flagship BAXI 800 Combi 2 range, the BAXI 836 features a durable stainless steel heat exchanger, intelligent condensing technology, OpenTherm compatibility, and a compact cupboard-fit design. Built for both installers and homeowners, it combines simple installation, energy-efficient operation, and dependable performance for years of reliable heating and hot water.

Key Features

• 36kW Natural Gas Combination (Combi) Boiler
• Includes Horizontal Flue Kit
• Includes Adey MagnaClean Micro2 Magnetic System Filter
• Fuel Type: Natural Gas (manual LPG conversion possible)
• Instant mains-pressure hot water
• No separate hot water cylinder required
• ErP A Rated for heating and hot water
• High-efficiency condensing technology
• Stainless steel heat exchanger
• Brass hydraulic components
• Compact cupboard-fit design
• Fits inside a 290mm deep kitchen cupboard
• OpenTherm compatible
• Compatible with Baxi uSense 2 Smart Thermostat
• Remote control via the My Baxi App
• Pre-heated condensate trap for improved winter protection
• 10-Year manufacturer's warranty (subject to registration and terms)

Ideal for Larger Homes

The BAXI 836 36kW Combi Boiler is ideal for larger homes with one or two bathrooms where higher domestic hot water demand is expected. It provides both central heating and domestic hot water directly from the mains, eliminating the need for a separate hot water cylinder while delivering excellent water pressure and everyday convenience.

Powerful Heating & Instant Hot Water

Delivering 36kW domestic hot water output and an impressive 15.0 litres per minute flow rate (Δ35°C), the BAXI 836 comfortably supplies hot water to showers, baths, and taps while maintaining efficient central heating performance.

Its advanced condensing technology helps maximise seasonal efficiency, reducing fuel consumption and lowering household energy costs without compromising comfort.

Compact Design & Easy Installation

Despite its powerful output, the BAXI 836 maintains a compact cupboard-fit design, making it suitable for installation in kitchens, utility rooms, and other locations where space is limited.

Dimensions

• Height: 700mm
• Width: 395mm
• Depth: 285mm

The included horizontal flue kit and Adey MagnaClean Micro2 magnetic filter provide a complete installation package while helping protect the heating system from sludge and magnetic debris.

Advanced Energy Efficiency

Rated ErP A for both heating and hot water efficiency, the BAXI 836 combines intelligent condensing technology with a premium stainless steel heat exchanger to maximise performance while reducing energy consumption.

The included Adey MagnaClean Micro2 filter continuously removes magnetite and system debris, helping maintain efficiency, protect vital boiler components, and extend the life of the heating system.

Smart Heating Control Compatibility

The BAXI 836 is compatible with OpenTherm controls and the Baxi uSense 2 Smart Thermostat, allowing homeowners to manage heating remotely via the My Baxi App while improving efficiency and comfort through intelligent boiler modulation.

Reliable Performance & Easy Maintenance

Built with a stainless steel heat exchanger, durable brass hydraulic components, digital diagnostics, and a pre-heated condensate trap, the BAXI 836 is engineered for dependable long-term performance in all seasons. Its installer-friendly design provides excellent front access for quick servicing and maintenance.

Warranty & Peace of Mind

The BAXI 836 36kW Combi Boiler with Horizontal Flue + Filter includes a 10-Year manufacturer's warranty (subject to registration, annual servicing, and warranty terms), providing homeowners with long-term confidence and dependable after-sales support.

Why Choose the BAXI 836 36kW Combi Boiler with Horizontal Flue + Filter?

• Complete boiler, horizontal flue, and magnetic filter package
• Powerful 36kW combi boiler
• Natural Gas compatible (manual LPG conversion possible)
• 15.0 L/min domestic hot water flow rate
• Includes Adey MagnaClean Micro2 magnetic system filter
• Stainless steel heat exchanger
• Compact cupboard-fit design
• OpenTherm & Baxi uSense 2 compatible
• Remote control via the My Baxi App
• 10-Year manufacturer's warranty