Main 30kW Combi Boiler with Horizontal Flue

The Main 30kW Combi Boiler with Horizontal Flue is a complete heating package designed to deliver powerful central heating and reliable mains-pressure hot water for medium to larger homes. Supplied with a horizontal flue kit, this compact and energy-efficient combi boiler provides everything required for a straightforward installation while offering excellent everyday performance and outstanding value.

Manufactured by Main Heating, part of the Baxi group, the Main Eco Compact 30 combines proven condensing technology with a durable stainless steel heat exchanger and brass hydraulic components. Its cupboard-fit dimensions and lightweight design make it an ideal replacement boiler for homes where installation space is limited.

Key Features

• 30kW Combination (Combi) Gas Boiler
• Includes Horizontal Flue Kit
• Fuel Type: Natural Gas
• Instant mains-pressure hot water
• No hot water cylinder required
• ErP A Rated efficiency
• High-efficiency condensing technology
• Stainless steel heat exchanger
• Brass hydraulic components
• Compact cupboard-fit design
• Lightweight installation (29kg lift weight)
• Front-facing pressure gauge
• Compatible with Baxi OpenTherm RF controls
• 5-Year manufacturer's warranty (subject to registration)
• Manufactured by Main Heating, part of the Baxi group

Ideal for Medium to Larger Homes

The Main 30kW Combi Boiler is designed for medium to larger homes with one or two bathrooms. As a combi boiler, it provides both central heating and domestic hot water directly from the mains, eliminating the need for a separate hot water cylinder or cold water storage tank.

Its compact dimensions make it suitable for installation in kitchen cupboards, utility rooms, and other areas where space is limited.

Powerful Heating & Instant Hot Water

With a 30kW central heating output and a domestic hot water flow rate of up to 12.2 litres per minute (Δ35°C), the Main Eco Compact 30 delivers dependable hot water for everyday household use while maintaining efficient central heating performance.

Its modern condensing technology helps maximise efficiency, reduce fuel consumption, and lower household energy bills.

Compact Design & Easy Installation

Designed to simplify installation, the Main Eco Compact 30 features a lightweight construction and installer-friendly layout.

Dimensions

• Height: 700mm
• Width: 390mm
• Depth: 285mm

The included horizontal flue kit makes this package a convenient solution for both replacement and new heating installations.

Energy Efficient Performance

The Main Eco Compact 30 combines proven condensing technology with a stainless steel heat exchanger to deliver reliable performance and excellent seasonal efficiency.

Its ErP A Rating helps homeowners reduce energy usage while maintaining consistent heating and hot water throughout the year.

Smart Heating Control Compatibility

Compatible with Baxi OpenTherm RF controls, the Main Eco Compact 30 supports more precise temperature management, improved comfort, and greater energy efficiency when paired with compatible smart thermostats.

Reliable Performance & Easy Maintenance

Built with durable stainless steel and brass hydraulic components, the Main Eco Compact 30 is engineered for long-lasting reliability.

Its front-facing pressure gauge and accessible internal layout make routine servicing and maintenance straightforward for heating engineers.

Warranty & Peace of Mind

The Main 30kW Combi Boiler includes a 5-year manufacturer's warranty (subject to registration and installation terms), providing homeowners with added confidence and long-term peace of mind.

Why Choose the Main 30kW Combi Boiler with Horizontal Flue?

• Complete boiler and horizontal flue package
• Powerful 30kW combi boiler
• Instant mains-pressure hot water
• 12.2 L/min hot water flow rate
• Stainless steel heat exchanger
• Compact cupboard-fit design
• Lightweight installation
• OpenTherm compatible
• No hot water cylinder required
• 5-Year manufacturer's warranty