Worcester Bosch Greenstar 15i System Boiler Natural Gas ErP, Solar distributor, zerohomebills.com, ZERO home bills, solaranna, solaranna.co.uk, solaranna.com, 0bills.com, zero bills, free energy reduce your bills, eliminate home bills, energy independence, renewable energy, off-grid, wind energy, solar energy, renewable shop, solar shop, off-grid shop, tired of your home temperature due to your bills, weather sensors, temperature sensors, looking for a better weather in your home, sonnenshop, photovoltaic shop, renewable shop, off-grid shop, battery storage, energy storage, boilers, gas boilers, combi boilers, system boilers, biomass boilers, led lighting, e-vehicles, e-mobility, heat pumps, air source heat pumps, ground source heat pumps, solar panels, solar panel, solar inverter, monocrystalline panels, polycrystalline panels, smart solar panels, flexible solar panels, battery chargers, charge controllers, hybrid inverters fireplaces, stoves, wood stoves, cooking stoves, kitchen stoves, multi fuel stoves, solar thermal, solar thermal panels, solar kits, solar packages, wind and sun, wind&sun, wind energy, wind turbines, wind inverters, green architecture, green buildings, green homes, zero bills homes, zero bill homes, best prices in renewable, best prices in solar, best prices in battery storage, domestic hot water, best prices in boilers, best prices in stoves, best prices in wind turbines, lit-ion batteries, off-grid batteries, off-grid energy, off-grid power, rural electrification, Africa energy, usa renewable, usa solar energy, usa wind energy, uk solar, solar London, solar installers usa, solar installers London, solar usa, wholesale solar, wholesale wind, Photovoltaik Großhandel, Solaranlagen, Speicherlösungen, Photovoltaik-Produkte, Solarmodule, PV Großhändler: Solarmodule, Speichersysteme, Wechselrichter, Montagegestelle, Leistungsoptimierer, Solarmarkt, Solar markt, solaranna, zerohomebills.com, 0bills.com, zeroutilitybills.com, zero utility bills, no utility bills, eliminate utility bills, eliminate your bills, renewable news, solar news, battery storage news, energy storage news, off-grid news, wind and sun, solar components, solar thermal components, battery storage components, renewable components, solar accessories, battery storage accessories, photovoltaik online shop, photovoltaik onlineshop, photovoltaik online kaufen, photovoltaik, photovoltaik shops, photovoltaikanlage bestellen, photovoltaik shop, photovoltaikanlagen shop, solar, speicher, schletter, systems, victron, montagesystem, energy, flachdach,photovoltaik, smart, fronius, pvall, cello, anlage, ableiter, citel, monox, dachhaken, solar, speicher, schletter, systems, flachdach, montagesysteme, energy, fronius, pvall,photovoltaik, photovoltaikall, anlage, wechselrichter, statt, online, zubehör,komplettanlagen, solarmodule, SMA, victron, SolarEdge, enphase, StoreEdge, Kostal, BenQ, AUO, Solis, Fronius, Jinko Solar, JA Solar, Panasonic, Samsung, Daikin, Wamsler, solar-log, Canadian Solar, Trina Solar, tesvolt, BYD, LG Chem, LG, Panasonic, Samsung, Huawei, GE Lighting, Philips, Osram, battery chargers, charge controllers, Wind and Sun, Windandsun, wholesalesolar, whole sale solar, retail solar, solar shop, retail solar shop, renewable retailer, solar retailer

Worcester Bosch Greenstar 15i System Boiler Natural Gas ErP

15kW ErP Condensing System Boiler

The Worcester Greenstar i System is Worcester’s most popular wall-mounted system boiler. With outputs up to 24kW, the boilers are suitable for a wide range of homes.

The appliance comes with a steel wall-mounting jig that not only allows pipes to go behind the boiler but also the ability to pre-pipe all of the pipework before the boiler is placed on the wall.

The boiler can be used with our range of high efficiency Greenstore cylinders.

  • Wall mounting jig providing pre-plumbing and rear piping as standard
  • Low lift weight
  • Single sided front case
  • Pre-wired mains cable
  • Plug & play accessories including optional facia mounted controls and internal diverter valve kits
  • Simple boiler controls with clear information display and one button commissioning mode
  • Benchmark menu in boiler
  • On-board operational information and diagnostics
  • CondenseSure style syphon inside – risk of condensate pipe freezing eliminated

Worcester Diverter Valve Kit required to operate all optional Worcester controls.

ErP Directive Compliant

  • A rated efficiency (SAP 2005 seasonal efficiency)
  • Combined drain and condensate within the boiler
  • Low energy pump now as standard
  • Larger siphonic trap
  • Earth bonding strip fitted to hydraulic assembly as standard
  • Fully condensing in both central heating and domestic hot water modes
  • Keep hot facility – instantly available hot water
  • Extremely small standby electrical output of 3.5W
  • Wall mounting frame allows pipework to be hidden from view
  • In-built keyless filling link as standard
  • Low NOx and CO2 emissions
  • Up to 10 Year Guarantee*


Send an inquiry
Insert name
Insert mail
Insert message


Worcester Bosch Greenstar 15i System Boiler Natural Gas ErP

 If you have any technical queries about this product or wish to report any issues with the information on this page then please use the Contact Form to contact us.


Technical Details

Greenstar 9i System Greenstar 12i System Greenstar 15i System Greenstar 18i System Greenstar 21i System Greenstar 24i System
Part number 7 733 600 011 7 733 600 010 7 733 600 009 7 733 600 008 7 733 600 007 7 733 600 006
ErP Efficiency Rating
ErP Data Sheet ErP Data Sheet ErP Data Sheet ErP Data Sheet ErP Data Sheet ErP Data Sheet ErP Data Sheet
Solar Compatible  Yes  Yes  Yes  Yes  Yes  Yes
Wave Compatible *  Yes  Yes  Yes  Yes  Yes  Yes
Control Options  Yes  Yes  Yes  Yes  Yes  Yes
Dimensions (mm) height x width x depth 710 x 400 x 330 710 x 400 x 330 710 x 400 x 330 710 x 400 x 330 710 x 400 x 330 710 x 400 x 330
Clearances (mm) above, sides, below and front 30, 5, 200, 600 30, 5, 200, 600 30, 5, 200, 600 30, 5, 200, 600 30, 5, 200, 600 30, 5, 200, 600
Maximum horizontal flue (mm) 4600 4600 4600 4600 4600 4600
Maximum vertical flue (mm) 6400 6400 6400 6400 6400 6400
Ingress protection rating IP20 IP20 IP20 IP20 IP20 IP20
Wall mounting jig supplied  Yes  Yes  Yes  Yes  Yes  Yes
Central heating output (kW) 9 12 15 18 21 24
Minimum inlet pressure (bar) N/A N/A N/A N/A N/A N/A
NOx emissions (mg/kWh) 36 45 42 50 49 49
Lift weight (kg) 30.9 30.9 30.9 30.9 30.9 30.9

*With installation of optional built-in diverter valve

**The Condensesure Siphon has been proven to be effective at preventing frozen condensate at -15°C for a sustained period of 48 hours. 32mm pipework must be used and should not exceed 3 metre


worcester bosch logo 1

Worcester, Bosch Group (commonly referred to as Worcester or Worcester-Bosch) is a United Kingdom based domestic heating and hot water products manufacturer. The company was founded in 1962 by Cecil Duckworth as Worcester Engineering Co Ltd in Worcester, England. After changing its name to Worcester Heat Systems Ltd, in 1992 the company was acquired by Robert Bosch GmbH, adopting the new name of Worcester, Bosch Group.

The headquarters is based in Warndon. The company employs more than 2,000 people across the headquarters and manufacturing plants in Worcester and Clay Cross, Derbyshire, including a network of over 300 service engineers and over 80 technically trained field sales managers. Join our ZERO Home Bills CommunityBEST Products from the BEST Brands at the BEST Prices on ZEROhomebills.com by Solaranna. 

BUY NOW the Worcester Bosch Greenstar 15i System Boiler Natural Gas ErP!

Additional information

Weight 30.9 kg
Dimensions 71 × 33 × 40 cm
Product Category

Boilers, Gas Boilers, HEATING AND COOLING, System Boilers


Bosch, Worcester Bosch

Rated Power (W/kW)

15 kW

There are no reviews yet.

Add your review