Future-flexible heating

The quickest and simplest way to embrace year-round, lower-carbon comfort^ – the CS5800i Hybrid Heat Pump.

Check your suitability

Why choose the Compress 5800i Hybrid Heat Pump?

Cost-efficient

Cost-efficient

Optimises between heat pump and boiler based on fuel prices.

Reliable

Reliable

All the efficiency of a heat pump with a boiler to back it up.

Easy

Easy^^

Enjoy a simple set-up by adding to your new or existing boiler.^

Features and benefits

5800 hybrid heat pump outdoor5800 hybrid unit5800 set up

Flexible

Hybrid unit fits internally into a cupboard or onto an outside wall.

Intelligent

Switches between boiler and heat pump for maximum efficiency.

Space-saving

Compact heating with no buffer tank or system changes needed.

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Configure your system

Your installer will help you configure the best set up for your home.

Download the guide

Control your heating

Your hybrid system has two control options, with a choice of non-connected and connected wired solutions to suit your needs.

A non-connected system controller that offers a seamless experience.

Installer with homeowners

Is my home suitable for a hybrid?

Find out if your home is right for a hybrid system, by using our simple checker below. 

Homeowner advice

Homeowner advice

We've got top tips and advice on things to consider and the steps to take to getting your new heat pump or hybrid system installed.

^New or existing Greenstar 8000, Greenstar 4000 and Greenstar CDi Compact range (up to 36kW)

^A hybrid heat pump system when running emits less carbon dioxide compared to only using a gas or oil boiler.

^^New or existing Greenstar Combi 8000, 8000+, 4000, 2000, 1000, CDi Compact, CDi Classic, Si Compact and i ErP.