Attic Heat Harvester
Attic Heat Harvesting Ltd supply a kit comprising of most of the parts required for the attic heat harvesting system, the kit comprises of seven items, 4 are cables which are available in a variety of lengths to suit your home.
Attic Heat Harvester main system components
To find out how to determine what cable lengths you need see the Installation Instructions.
Please add the items you require to your basket below - normally you would select the following 7 items before checking out.
Prior to ordering will you please contact us to get the most up to date delivery information. Thank you.
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| Part Number AHDTC230 |
Description Differential temperature controller 230vac |
Price £215 |
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| Part Number AHF23045CMP |
Description Motorized main air valve - 300 mm diameter |
Price £154 |
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| Part Number AHF23045CMP |
Description Unit 230vac 450mm + Cone + mounting Plate |
Price £142 |
Room temperature sensor cable options | |||
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| Part Number | Description | Price | |
| AHRTS010M | Room temperature sensor with 1m (3ft) cable | £10.00 | |
| AHRTS030M | Room temperature sensor with 3m (10ft) cable | £10.50 | |
| AHRTS075M | Room temperature sensor with 7.5m (24ft) cable | £11.00 | |
Attic temperature sensor cable options | |||
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| Part Number | Description | Price | |
| AHATS075M | Attic temperature sensor with 7.5m (24ft) cable | £11.00 | |
| AHATS100M | Attic temperature sensor with 10m (33ft) cable | £13.00 | |
| AHATS150M | Attic temperature sensor with 15m (49ft) cable | £14.50 | |
| AHATS200M | Attic temperature sensor with 20m (65ft) cable | £16.00 | |
Main air valve cable options | |||
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| Part Number | Description | Price | |
| AHAVCAB050M | 3 core air valve cable 5m (16ft) | £4.00 | |
| AHAVCAB100M | 3 core air valve cable 10m (33ft) | £8.00 | |
Fan power cable options | |||
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| Part Number | Description | Price | |
| AHFPCAB050M | 3 core fan power cable 5m, (16ft) | £5.00 | |
| AHFPCAB075M | 3 core fan power cable 7.5m,(24ft) | £7.00 | |
| AHFPCAB100M | 3 core fan power cable 10m, (33ft) | £9.00 | AHFPCAB150M | 3 core fan power cable 15m (49ft) | £13.00 |
Please Note
You will need additional items to install the system, these include:
a) 300 or 305mm diameter x 5m or 10m insulated flexible ducting - this can be obtained at a competitive price from ebay.
b) 315mm jubilee clamps (hoze clamps) to clamp the ducting to the motor and air valve - these can be obtained at a competitive price from ebay.
c) Something to support the flexible ducting in the attic, for example, pieces of wood to be attached to the rafters that
have loops of webbing fitted to them that pass underneath the ducting and where needed and strips of wood that can easily
bend to keep the ducting fairly straight - see photo below.
The picture shows a clear duct in the attic supported by webbing that is attached to vertical strips of wood that are themselves attached to roof joists. There is a bend at the right end of the duct which is constrained to being a gentle curve by a flexible piece of wood that bends. The straight portion of the duct is supported by straight pieces of wood.
The attic temperature sensor is positioned at the end of a white cable at the open duct end near the top left corner of the photo. The attic temperature monitor can be seen to the right of the open duct end.
d) One or two ceiling air vents, depending whether you wish to have an air return vent, that suit your home decor.
e) If the room that is to be heated is quite air tight, or if you wish to somewhat direct the heated air to other parts of your home, wall air vents that preferrably can be closed to stop drafts when required or a backdraught shutter.
f) A 5 amp fused switched unit to match your existing switches, and a back box.
g) A length of electrical cable to connect the mains supply to the switch unit.
h) A short length of electrical cable to connect the mains supply from the switch unit to the Differential Temperature Controller.
i) Sundry screws.
Below are some of the products you will need, that are not supplied in the kit:
a) 300mm diameter insulated flexible ducting |
d) Ceiling air vents |
e) Backdraught Shutter |
e) Wall air vents |
f) 5 amp fused switch unit |