Heating Cables
High quality, ultra reliable heat cables to fast-track seedling growth in your nursery propagation area.
Don’t risk the life of your seedlings and having to spend hours digging up a carefully laid cable because an inferior cable was used that became faulty.
Pure Hydroponics Heating Cables are ideal for all types of ornamental and vegetable seedling propagation.
They can also be used as soil heating cables, or for heating reptile enclosures and underfloor areas.
The Heating Cable comes with a water-resistant thermostat. The Heating cable is then submersed into the bed of fine gravel or coarse river sand. The gravel or sand is then moistened.
The grower plants their cuttings directly into this media or they place trays of cutting or seedlings on top of the media bed and insert the temperature probe into the growing media.
The cable heats up to the required temperature and this heat is radiated into the surrounding media and anything that may be growing in the media or on top of it.
The cables are manufactured to very high standards and have a layer of aluminium armour under the PVC insulation which protects the cable and allows for easier installation.
All cables are factory tested before dispatch and are ultra reliable. It is too risky to spend hours installing a propagation bed only to have to do it all again to replace a faulty heat cable because a cheap, inferior product was used to “save costs”.
The cable is laid out in a wave formation along the width of the table with a 50 – 70mm gap between each wavelength (to protect the cable from damage).
One 230 Volt thermostat can control more than 1 cable at one time.
The Thermostat is a 10 Amp Thermostat with a 120mm long temperature probe.
The cables are unable to be trimmed shorter if there is a surplus length.
A Residual Current Device should be installed on the mains power supply for the safest operation of the cables.
The heating cable is supplied pre-wired into the thermostat and the thermostat has a 2.85m long power supply cable attached to it with a 3 pin plug for easy installation by the grower.
All pricing below includes 1 x Thermostat
Heating Cable Sizes & Prices are as follows:
| Name | Description | Area | Price |
|---|---|---|---|
| 100 Watt | 10 Metre Long Cable | Suits a 0.6 m2 area | $320.00 + GST |
| 200 Watt | 20 Metre Long Cable | Suits a 1.1 m2 area | $360.00 + GST |
| 300 Watt | 30 Metre Long Cable | Suits a 1.7 m2 area | $395.00 + GST |
| 400 Watt | 40 Metre long Cable | Suits a 2.2m2 area | $447.00 + GST |
| 500 Watt | 50 Metre Long Cable | Suits a 2.8m2 area | $499.00 + GST |
| 600 Watt | 60 Metre Long Cable | Suits a 3.3 m2 area | $532.00 + GST |
| 700 Watt | 70 Metre Long Cable | Suits a 3.9 m2 area | $595.00 + GST |
| 800 Watt | 80 Metre Long Cable | Suits a 4.4 m2 area | $635.00 + GST |
| 900 Watt | 90 Metre long Cable | Suits a 5.0m2 area | $645.00 + GST |
| 1000 Watt | 100 Metre Long Cable | Suits a 5.5m2 area | $680.00 + GST |
All pricing includes 1 x Thermostat
Custom sizes and longer cables are also available on request.
Replacement heating cable thermostats are also available for $110.00 + GST.
Allow 2 working days to prepare the cables before dispatch and NZ$20 – $35 courier to most parts of New Zealand due to volumetric weight.
Yes, we can export these high-quality heating cables to Australia within a 3 – 5 working day delivery timeframe on DHL!
Please see DHL courier prices to Australia below:
| Name | Description | Area | DHL Courier Price to Australia |
|---|---|---|---|
| 100 Watt | 10 Metre Long Cable | Suits a 0.6 m2 area | NZ$53.00 |
| 200 Watt | 20 Metre Long Cable | Suits a 1.1 m2 area | NZ$53.00 |
| 300 Watt | 30 Metre Long Cable | Suits a 1.7 m2 area | NZ$67.00 |
| 400 Watt | 40 Metre long Cable | Suits a 2.2m2 area | NZ$67.00 |
| 500 Watt | 50 Metre Long Cable | Suits a 2.8m2 area | NZ$74.50 |
| 600 Watt | 60 Metre Long Cable | Suits a 3.3 m2 area | NZ$74.50 |
| 700 Watt | 70 Metre Long Cable | Suits a 3.9 m2 area | NZ$89.50 |
| 800 Watt | 80 Metre Long Cable | Suits a 4.4 m2 area | NZ$104.50 |
| 900 Watt | 90 Metre long Cable | Suits a 5.0m2 area | NZ$104.50 |
| 1000 Watt | 100 Metre Long Cable | Suits a 5.5m2 area | NZ$120.50 |
The DHL courier price includes customs clearance and door to door delivery in Australia. Australian GST may be charged by Australian customs upon arrival depending on the value of the cable.
Sizing and Layout
To size the cable and how it needs to be arranged do as follows:
Work out the length and width of the propagating bed area.
E.g 1.4m x 800mm = 1.12m2
Therefore a 20 metre long (200 Watt) cable is best.
Then divide the 20 metre cable by 1.4m (length of bed) = 14.28. This means you require 15 runs (wavelengths) of cable.
Then divide the width of the bed by 15 runs = 800mm/15 runs = 53mm / 2 = 26.5mm
Therefore you have 26.5mm gap on the left-hand side of the bed and 14 x 53mm gaps between the runs of cable, and a 26.5mm gap on the right-hand side of the bed.
The red part of the cable must be fully covered by sand (if it is exposed or touches another part of the cable it will melt). The insulated black part of the cable that connects to the thermostat can be exposed.
45mm gaps between the wavelength runs of the cable is the very minimum you can go to.
55 -70mm is ideal.
There must be a minimum of 25mm of sand on the floor plate of the table onto which the cable is laid.
A sheet of polystyrene minimum 25mm thick installed on the base of the table would help to insulate the table and improve heat retention.
Then there must be a minimum of 50mm of sand on top of the cable. The cable must not be exposed at any time.
The sand should be kept moist at all times to help to conduct the heat.
One thermostat can only handle 2 x cables at any one time.
Please talk to Pure Hydroponics for pricing and further information.
