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Overview
Worcester Bosch Greenstar 21i System ErP boiler Liquid Petroleum Gas from the Plumbing World Greenstar system ErP boiler collection is part of the market-leading Worcester Bosch Greenstar System ErP Boiler range of energy-saving condensing gas-fired boilers. The Worcester 21i System ErP boiler can cut heating and hot water bills by between 15 to 20 percentage and the Worcester Bosch Greenstar 21i boiler is also up to 30 percentage cheaper to run than an older boiler.
- Larger condensate siphon to prevent risk of freezing condensate
- ErP A rated for heating
- Fully compatible with Worcester plug in controls
- Low energy modulating pump
- Expansion tank pre installed in boiler
- 7 years guarantee as standard extended to 8 years when installed with any Greenstar system Filter
Technical specification
Years Guaranteed7Width400 mmSolar CompatibleYesNox Class5Noise Level49 dBMaximum Vertical Flue 125mm15 mMaximum Vertical Flue 100mm6.4 mMaximum Horizontal Flue 125mm13 mMaximum Horizontal Flue 100mm6.4 mHeight710 mmHeat Output21 kWFuel TypeLPGERP RatingADepth330 mmCH Condensing Max Output21.6 kWBoiler TypeSystemRange DescriptionGreenstar i SystemManufacturer Model No7733600037Brand NameWorcester Bosch
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