Smaller, quieter, easier
Purpose-built for UK homes and UK weather, the all new and compact CS5800i air to water heat pump brings a more responsible and efficient way to keep you warm, wherever you live.
Why choose the CS5800i
Quiet quality
Our quietest heat pump ever and Quiet Mark certified, the CS5800i is as quiet as can be
Stylish design
The sleek, compact, outdoor unit has been perfectly designed to look good in your garden
Performance
Lower carbon emissions, a higher flow temperature and better home comfort all year round
Control your heating
There’s a choice of digital thermostats to suit your needs, with the option to control your heating via the Bosch HomeCom Easy app.
If you choose to use the app, our team can monitor your heat pump remotely, at your request.
Find out more
Is my home suitable for a heat pump?
Lead the way to greener heating and find out if your home is right for a heat pump, by using our simple checker.
Homeowner advice
We've got top tips and advice on things to consider and the steps to take to getting your new heat pump installed.