Worcester Bosch Greenstar 25Si Compact Combi Gas Boiler
Typical Price (inc VAT)
£1,075
Typical installation Cost (inc VAT)*
£500 - £1000
Sundries (Filter, Flue, etc)
£300
Total Cost
£1,875 - £2,375
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| Make | Worcester Bosch |
| Model | Greenstar 25Si Compact Combi Gas Boiler |
| Is Condensing | Condensing |
| Efficiency Rating | 94% |
| Band Rating | A Rated |
| LPG Compatible | Yes |
| Standard Warranty | Up to 10 Years |
| Central Heating Max. Output | 24 kW |
| Mounting | Wall mounted |
| Flow Rate | 10.2 l/min |
| Typical Price (inc VAT) | £1,075 |
| Typical installation Cost (inc VAT)* | £500 - £1000 |
| Sundries (Filter, Flue, etc) | £300 |
| Total Cost | £1,875 - £2,375 |
| ERP Rating | A HEAT A WATER |
| Hot Water Max. Output | 25 kW |
* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.
Get a quote to install this boiler
Need a repair instead? Get a repair quote
Product Description
The Worcester Bosch Greenstar 25Si Compact is an efficient gas boiler designed for wall-mounted installation in properties with a single bathroom.
How efficient is the Greenstar 25Si Compact?
A seasonal space heating efficiency rating of 94% and ErP A-rating makes this a highly efficient boiler that could help to lower your heating bills.
Is the output rating suitable for my home?
As a combi boiler, the Greenstar 25Si has a central heating output of 24 kW and domestic hot water output of 25 kW. As a result, it's well suited to properties with up to 10 radiators and 1 bathroom.
Are any other options available in the Greenstar Si Compact range?
Should you need a higher domestic hot water output to meet your needs then the 30Si has a 30 kW output rating.
Is a combi boiler suitable for my home?
The Greenstar 25Si Compact is the perfect heating system for properties with 1 bathroom. As a combi, they're ideal for properties with limited space as there's no need for any tanks or cylinders.
How long is the warranty period?
After the installation of a Greenstar 25Si Compact, you will be covered by Worcester Bosch for a period of up to 10 years.
What are the key features of the Greenstar 25Si Compact?
Key features of this compact heating system include boiler frost protection, user-friendly controls and a low energy pump to reduce electricity consumption.
How big is the Greenstar 25Si Compact?
Measurements of only 690 x 390 x 280mm (HxWxD) make this a very compact boiler that can be installed within a kitchen cupboard.
The Worcester Bosch Greenstar 25Si Compact is an efficient gas boiler designed for wall-mounted installation in properties with a single bathroom.
How efficient is the Greenstar 25Si Compact?
A seasonal space heating efficiency rating of 94% and ErP A-rating makes this a highly efficient boiler that could help to lower your heating bills.
Is the output rating suitable for my home?
As a combi boiler, the Greenstar 25Si has a central heating output of 24 kW and domestic hot water output of 25 kW. As a result, it's well suited to properties with up to 10 radiators and 1 bathroom.
Are any other options available in the Greenstar Si Compact range?
Should you need a higher domestic hot water output to meet your needs then the 30Si has a 30 kW output rating.
Is a combi boiler suitable for my home?
The Greenstar 25Si Compact is the perfect heating system for properties with 1 bathroom. As a combi, they're ideal for properties with limited space as there's no need for any tanks or cylinders.
How long is the warranty period?
After the installation of a Greenstar 25Si Compact, you will be covered by Worcester Bosch for a period of up to 10 years.
What are the key features of the Greenstar 25Si Compact?
Key features of this compact heating system include boiler frost protection, user-friendly controls and a low energy pump to reduce electricity consumption.
How big is the Greenstar 25Si Compact?
Measurements of only 690 x 390 x 280mm (HxWxD) make this a very compact boiler that can be installed within a kitchen cupboard.
Get a quote to install this boiler
Need a repair instead? Get a repair quote
