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Mako

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  1. Also check out the Starlight range from Dahua if your budget doesn't stretch to thermals.
  2. Check topcctv.co.za. Register as a dealer. Talk to them directly, preferably Montague gardens branch. I started out with a Flir unit from a wrecked MBenz, added a video server and it's been detecting criminals for ten years now. Everyone told me it wouldn't last.
  3. Dahua make nice thermal cameras as well as a hybrid which combines a starlight image with the thermal image and makes it easier for unskilled guards to interpret the scene. I made my first CCTV thermal camera up using the Flir unit from a Mercedes and a video server. It's been in a hidden location for a few years now and detects humans at up to 300 meters if used properly. I also have some flir cameras and we clearly pick up humans at 500 meters. I have three types in service.
  4. I'm trying to help my sister to get her laundry more energy efficient. We've sorted out her electricity spikes which catapult her into very high tariffs (800 amps available) and we are now looking at hot water. PV solar is on hold for now (salesman had convinced her she would save hundreds of thousands) as most of the energy is consumed at night and the unit charge is under R1.00/unit off peak. (this is in George) Water is currently heated by a donkey boiler and stored in a 800L bath type tank which I have just insulated along with the circulation and delivery piping. (this has been unins
  5. I have two shipping containers next to each other. The tops are silver. My six panels are adjustable for tilt only and face WNW (no choice). Excellent for ventilation and maintenance as I step off a balcony which is level with the container tops. The silver top of the 'next door' container reflects onto the panels in the winter months and definitely makes a difference. Summertime reflection is wasted because of the low tilt angle.
  6. Does this happen with batteries commonly used in PV installations? ICV's could approach the critical point where a cell voltage reversal would occur, causing all other cells to charge that cell causing near instantaneous hydrogen gassing and explosion.
  7. Good ventilation will not prevent an internal explosion however it will remove free hydrogen which would contribute to the noise.
  8. That looks like an internal battery fault that ignited the hydrogen inside that battery. If it was build up at the ceiling the ceiling would be gone.
  9. I've been given a Solaire GTI, It looks like a rebranded Danfoss and not on the COCT approved list as far as I can see. Does anyone know much about them? I may test it once I have the extra panels up to replace my 500 watt micro GTI setup (I'm a micro IPP). The current 500 watt setup is to offset my base 500-600 watts which powers some community PC's and wireless links.
  10. Thanks for the input so far Chris and Plonkster. East West isn't going to happen mainly because the plans are done / submitted, also the house overlooks the lagoon and orientation on the sloping plot is fixed. Mrs. Friend has decided ;-) The way it's laid out now will also provide a walkway along the base of each pitch for easy cleaning of the panels.
  11. Asking for a friend in Langebaan. The plans for a new house have been drawn. Two roof pitches facing NW for panels. The question is around future proofing in terms of the electrical wiring. What should be done to ease a later solar install at the distribution board?
  12. IMO 20% bio blend can be used in any diesel. In fact it's an excellent lubricity additive for low sulphur diesel. Common rail diesels have exceptionally high injector tip temperatures and there is a good chance of coking / polymerization in the injector leading to failure if percentages higher than 50/50 are used. In other vehicles post injection to clean diesel particulate filters restricts the use of higher bio percentages. (Late injection [Piston low down in the bore] of low volatility bio gets onto the cylinder walls and finds its way into the crankcase oil) Water in bio is the bigges
  13. Generally glow plugs stay on (tell tale light off) for some time once an engine starts to reduce emissions. VW's typically only activate glow plugs once the ambient temperatures drop below 9C but they always activate for around 2 minutes on low engine loads when starting. DI motors start more easily than IDI and normally without needing glow plug activation.
  14. Just curious, is yours a Lister / Listeroid and is it IDI or DI?
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