The Greenstar Highflow 440 boiler is a large floor standing condensing combination boiler, a part of a market leading energy-saving Worcester combi series. It can deliver 20 litres of domestic hot water per minute, making the appliance ideally suited for use in medium to large sized family homes, incorporating up to two bathrooms.
Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat A highly efficient use of energy which also reduces carbon dioxide in the atmosphere.
Pick up only NO DELIVERY - you must make arrangements to pick item up.
*Requires LPG Conversion Kit
Key Features:
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30kW DHW (domestic hot water) output, delivering 20 litres/minute flow rate
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Seasonal Efficiency of Domestic Boilers in the UK(SEDBUK) A-rated efficiency ENVIRONMENT FRIENDLY
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Suitable for larger family homes with multiple bathrooms
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Multi-directional fluing
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Optional plug-in twin channel programmer
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Hot water and central heating temperature controls, consumer comfort and flexibility
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2 year** warranty with 10 year** warranty on primary heat exchanger
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The Greenstar Highflow 440 has an advantage called "modulating"-control of both domestic hot water and central heating which, in combination with separate consumer controls, temperatures can be adjusted seperatly to suit your requirements.
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The Greenstar Highflow 440 also delivers hot water full mains pressure so it may be possible to incorporate a high pressure shower in your home so need for a separate shower pump.
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LPG boiler available
Specification:
| Title | Value |
| Hot/cold water connections |
15mm compression |
| Height (mm) |
850 |
| Width (mm) |
600 |
| Depth (mm) |
600 |
| DHW flow rate @ 35°C rise |
20 |
| Condensate disposal pump |
Yes |
| Gas connection |
22mm compression |
| Pressure relief valve |
15 |
| Heating flow and return connections |
22mm compression |
| Condensate connection |
22mm plastic pipe |
| Primary water content |
51 (litres) |
| NOx classification |
Class 5 |
| Floor mounted pre-plumbing jig |
Yes |
| Fault diagnostic display |
Digital |
| Plug-in timers |
Yes (optional) |
| Night set back module |
Yes (optional) |
| Optimising room temperature controller |
Yes (optional) |
| Weight - dry (kg) |
112 |
| SEDBUK value %/band - natural gas |
91%/Band A |
| SEDBUK value %/band - LPG |
92.2%/Band A |
| Min. domestic inlet pressure for max. DHW flow rate (bar) |
1.5 |
| Min. domestic inlet pressure to operate the appliance (bar) |
0.5 |
| Max. domestic inlet pressure (bar) |
10 |
| Output to central heating kW |
7.5 - 29.2 |
| Output to central heating (Btu) |
(25,590 - 99,630) |
| Filling Link |
Yes |
| Max. vertical flue (mm) (100mm dia.) inc. terminal |
6,400 |
| Max. horizontal flue (mm) (100mm dia.) |
15,000 |
| Max. vertical flue (mm) (125mm dia.) inc. terminal |
4,000 |
| Max. horizontal flue (mm) (125mm dia.) |
13,000 |
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