Welcome to this Hometree review of the Worcester Bosch Greenstar 25Si, a compact, gas-fired combi boiler.
This model is ideal for smaller properties like apartments and flats, and will serve a home with one bathroom well.
Despite being small, it delivers a strong flow rate of 8.9 litres of hot water, and with a central heating output of 24 kilowatts, this boiler is able to power up to 10 radiators.
Let’s take a quick look at what makes this boiler a great choice and whether it’s suitable for your home.
Firstly, Worcester Bosch is the UK’s number one trusted brand for boilers. Their quality means they can be a bit more expensive than, say, a Glow-worm or a Baxi boiler, but engineers and consumers continue to give Worcester Bosch
the highest rating for their boilers.
When turning fuel into heat, this boiler is A-rated for energy efficiency. You will also use less electricity with this model as the boiler has a low-energy pump included. If you are replacing an old boiler with this model, you will see an immediate reduction in your carbon emissionsfootprint and a reduction in your energy bill as a result.
The 25Si has been designed to make installation and setup easy and it comes with a 5-year manufacturer’s warranty as standard. You will need to make sure you get an annual service of this boiler to keep the warranty intact.
There is a user-friendly LCD display on the boiler so you can see at a glance if the boiler is on, working and what temperature it is set to. It also displays any problems that might arise. OurHometree engineers recommend that you get a smart thermostat fitted with your new boiler as it gives you more control over when to put your heating on and off and temperature settings to keep you warm and toasty.
This type of boiler will give you instant hot water anytime you need it.
Are there any negatives? If you have a larger home with more than one bathroom, you will need to look at other options, and if you are looking for a boiler that is compatible with solar panels, this is not the one for you.
The manufacturer states that this boiler can fit into a small cupboard. You need a space of 690mm x 390mm x 280mm – if this boiler doesn’t fit, you may need to look at other models.