The Main Eco Compact 25kW Combi Boiler is a compact, lightweight and efficient gas combination boiler designed to provide reliable central heating and domestic hot water from a single appliance. Now part of the Baxi family, the Main Eco Compact retains the established Main design, installation characteristics and performance.

This package includes a compatible horizontal flue, making it a convenient choice for suitable boiler replacement and new installation projects. The boiler has a compact 700mm × 390mm × 285mm footprint and a lift weight of approximately 29.5kg, making it particularly suitable for cupboard-fit installations.

The Vaillant ecoTEC pro 24kW Combi Boiler is a compact, high-efficiency combination boiler designed to provide reliable central heating and domestic hot water from a single appliance. Supplied with a Vaillant horizontal flue, this package is a practical solution for replacement boiler installations where a horizontal flue configuration is required.

The ecoTEC pro 24 combines heating and hot water in one compact unit, making it well suited to homes where space is limited. Vaillant specifications list dimensions of 720 × 440 × 338mm, an A-rated ErP efficiency rating, and a domestic hot water flow rate of up to 9.6 litres per minute at ΔT 35K.

The Vaillant ecoTEC pro 28kW Combi Boiler is a compact, efficient combination boiler designed to provide reliable central heating and domestic hot water from a single appliance. Supplied with a Vaillant horizontal flue, this package is a convenient option for suitable replacement or new boiler installations.

With an A-rated ErP efficiency rating, stainless-steel heat exchanger and an integrated 8-litre expansion vessel, the ecoTEC pro 28 is designed for dependable everyday performance. Vaillant specifies a domestic hot water flow rate of 11.1 litres per minute at ΔT 35K and a maximum horizontal flue length of 12 metres for 60/100 flue, subject to the manufacturer’s installation requirements and any reductions for bends.