Worcester Greenstar Heatslave 12/18 Technical Information page 3

The Greenstar Heatslave oil-fired
condensing combi boiler series
Greenstar Heatslave combi boilers are designed for use
with sealed primary systems to provide multi-point mains
fed domestic hot water and full central heating. The
appliances are pre-plumbed and pre-wired, and combine a
robust, mild steel heat cell, stainless steel secondary heat
exchanger, circulating pump, motorised valve and
expansion vessel.
An instantaneous supply of hot water is available from the
hot water heat exchanger. On demand hot water priority
directs full boiler output to sustain draw-off temperatures
and ensure rapid recovery after draw-off.
The appliances have been designed for energy efficient
operation, with accurate thermostatic system control.
Simple to use controls for the kitchen models give a
completely independent choice of hot water or central
heating services.
The Greenstar Heatslave series is part of a market-leading
range of energy-saving boilers which is very good news for
the environment and excellent news for specifiers,
developers, installers and consumers alike.
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At least 90% of the oil consumed by a new Greenstar
Heatslave condensing combi boiler is converted into heat
for the heating and/or hot water system, whereas new
non-condensing boilers achieve less than 85% efficiency.
Therefore, compared with a non-condensing combi boiler, a
Greenstar Heatslave can cut heating and hot water bills by
between 5-10%. The Greenstar range of condensing boilers
are all SEDBUK band A rated and deliver this energy-saving
performance by extracting additional latent heat from the
exhaust gases – a highly efficient use of energy which also
significantly reduces carbon dioxide emissions into the
atmosphere.
And to all these major benefits you can add yet more:
superlative Worcester quality and reliability, outputs to
comfortably satisfy the heating and hot water demands of
the larger household with more than one bathroom and
truly exceptional all-round value for money.
The Greenstar Heatslave
range at a glance
12/18 18/25 25/32
Condensing /
• •
SEDBUK A rated
Min 12kW 18kW 25kW
Output kW
Max 18kW 25kW 32kW
DHW flow rate
15l/min** 18l/min* 22l/min*
• •
Floor standing
Dimensions (mm)
520 x 855 x 600 520 x 855 x 600 520 x 855 x 600
(w x h x d)
Conventional CF or
• •
RS room sealed
from one appliance
• •
28 sec kerosene
Oil burner
Bentone Bentone Riello
External 12/18 External 18/25 External 25/32
Condensing /
• •
SEDBUK A rated
Min
12kW 18kW 25kW
Output kW
Max
18kW 25kW 32kW
DHW flow rate 15l/min** 18l/min* 22l/min*
• • •
Floor standing Outdoors Outdoors Outdoors
Dimensions (mm)
640 x 950 x 770 640 x 950 x 770 640 x 950 x 770
(w x h x d)
• •
Balanced flue
• •
28 sec kerosene
Oil burner
Bentone Bentone Riello
*Optimum DHW flow rate
**Restricted DHW flow rate
Features Benefits
Same footprint as Less disturbance during
previous Heatslave boilers boiler replacement
(kitchen models) installations
100% testing of heat Quality assurance
exchangers and burners
Conventional flue and Siting flexibility, product
room sealed balanced availability
flue from one model
(kitchen models)
Circular 'push-fit' Time saving
flue system
Left, right and rear flue Siting flexibility
direction all below
•
worktop height with inline
bends (kitchen models)
Optional fascia Reduced wiring
mounted programmer
•
(kitchen models)
2 year† warranty Peace of mind for the user
(5 years on primary
heat exchanger)
•
Robust quality manufacture Quality assurance
•
Stainless steel secondary High efficiency,
heat exchanger SEDBUK Band A. Durability
Pre-heated thermal store Instantly heated hot water
• SEDBUK A rated Compliant with forthcoming
mandatory building
regulations
Built-in frost protection Minimises the risk of
(external models) freezing
IP45 Ingress protection Resistant to water, dust
(external models) and the external elements
•
Robust green cabinet Blends in with garden,
•
(external models) long life expectancy
†Subject to conditions
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