[NepNut]

Hi Dr Soon,

Thanks for your feedback on your cool house. Glad to know it's up and running, there'll be kinks to work out since it's still fairly new but I'm sure you will get some encouraging results after a few months except maybe for the electricity bill...

Actually, the advantages about evaporative cooling pad are (as far as I understand)

1) lower temperature to about 10-13C from the outside surrounding temperature.
2) increase and maintain humidity (up to 80%) without the use of any humidifier.

Since most H/L or intermediate species needs similar requirement (temperature difference of ~10C and high humidity), so it's possible to do it in L/L without spending too much $$$ on electricity since the main operating requirement for a evaporative green house is mainly dependent on the exhaust fans and water pump.

All this is basically what I understand from my reasearch and I have no practical knowledge how it operate and any other unforseen disadvantage during real word application. However, looking at the results (from EP and recently from Thailand) I'm optimistic that this method is viable for those that interested in growing H/L and intermediate nep species in L/L tropical weather.

The limitation for this green house is probably for growing those ultra H/L species. As you mentioned, some intermediates and H/L species or hybrids already manage to grow OK in L/L tropical weather....However the ultimate test is to see whether those neps will flower under such condition, maybe an evaporative green house will make it possible.....

I'm planning to use such technique (evap cooling) but I still need feedbacks from fellow members who have experience running such setup.