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Greenstar Heatslave 18/25

Greenstar Heatslave boiler
Greenstar Heatslave boiler

Description

The Greenstar Heatslave combi oil boilers are suitable for installing in a kitchen. They have a pre-heated thermal store which provides you with instant hot water and they’re G3 compliant.

As floor standing boilers they can be installed under a removable worktop, provided there’s enough access for clearance and maintenance.

They are compatible with an optional plug-in time clock.

Image of 5 year guarantee logo5 year boiler guarantee between 1st April and 30th June 2012 (terms and conditions apply). See promo page for details.

Central heating output: 18-25kW
Domestic hot water flow rate: 18 litres per minute at 35 degree temperature rise.

Efficiency

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Features and benefits

  • Best official boiler efficiency rating (SEDBUK band A)
  • 5 year boiler guarantee 1st April - 30th June 2012, terms and conditions apply (standard guarantee: 2 years)
  • 5 year guarantee on primary heat exchanger
  • 10 year guarantee on secondary heat exchanger
  • Pre-heated thermal store – instantly heated hot water
  • Optional fascia mounted programmer
  • Robust quality manufacture

Technical data table

Technical data
Title Value
Height (mm) 855mm
Width (mm) 520mm
Depth (mm) 600mm
Weight 177kg
SEDBUK Value/band 90.1% Band A
Solar compatible No
Minimum diameter flue CF 100mm
Minimum diameter flue RS 80/125mm
Mains cold water inlet 15mm
Domestic hot water outlet 22mm
Primary vent 3/4" inch BSP
Primary cold feed 1 inch BSP
Heating flow and return connections 22mm
Condensate connection 21.5mm polypropylene
Oil connection 10mm
Max. primary static head 30 metres
Maximum flow temperature 55/81°C
Min. primary static head 1 metre
Primary water content 69 litres
NOx class Class 3, 209mg/kWh
Water side resistance 20°C 110 mbar
Exhaust flue gas mass flow 40kg/hr
Control thermostat differential 5°C
Power consumption 240W
Ingress protection rating 20 IP
Flue reset overheat thermostat (cut out) (°C) 110°C
Boiler manual reset overheat thermostat (cut out) 105°C
Boiler high limit thermostat (cut out) (°C) 92
Maximum hearth temperature 100°C
Maximum horizontal flue RS 6,000mm
Maximum vertical flue RS 12,000mm
Power supply 230 AC V 50Hz

Literature

Product guides and brochures
Title/description Part number Order
Greenstar oil boiler brochure

Help on choosing the best oil boiler to heat your home.

8 716 110 393

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Product guide - oil boiler and solar heating

Quick pocket-sized reference for trade professionals on oil boilers and solar water heating.

8 716 116 256

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Product literature
Title/description Part number Order
Greenstar Heatslave 12/18 and 18/25 fascia panel information 8 716 109 857

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Installation and servicing instructions (boilers manufactured from May 2012) 6 720 802 432

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Installation and servicing instructions (boilers manufactured until April 2012) 8 716 106 252

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Product bulletin: new Greenstar Oilfit plume management kit Oil PB 01/2011

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Tech and spec for Greenstar Heatslave 8 716 110 392

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User manual for Greenstar Heatslave 8 716 106 253

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Accessory literature
Title/description Part number Order
Digital twin channel programmer instructions 8 716 105 796

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Tech and spec for heating controls 8 716 115 653

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Flue literature
Title/description Part number Order
Greenstar Oil internal flue kit (80/125mm) and plume management kit instructions 6 720 645 523

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Greenstar Oilfit external balanced flue installation instructions 6 720 646 882

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Greenstar Oilfit flexible flue system installation instructions 8 716 114 290

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