i beg to differ, atleast i think to differ...haha
i will try this using a 400w hps with heavy ventilation and tell you the temps, give me a day or 2 i have some new seedlings in the room and i dont want to be fumbling around, with my luck id drop something on them
yeah i keep coming back to the hps myself, i'm just trying to give the t5ho a chance, the one benefit i theorize is the fact that the area is only 3ft by 3ft which would give the t5ho's an upper hand on the heat side but i dont know, what do you all think?
ok i searched some more, here is a rated SPST relay you can use
http://www.grainger.com/Grainger/items/1YCF9
and here is a DPDT that you can use
http://www.grainger.com/Grainger/items/1EJG8
well lets see, your heating and cooling unit is 240v, does it have sockets to plug in appliances or are you saying it runs off 240? if the case is the latter than you have a couple options, the simplest which is NOT recommended is to wire up the contacts from the thermo to have sockets the...
is that a question or a suggestion? the pole and throw arrangement are dependent on which style of thermo/humidistat controller you have available,
now say your scenario is like this, you have a both controllers with 24vac control and the environment units are all 120/240vac you could use a DPDT
thank you very much for finding a picture for me, i may just have to goto the electric supply house and ask them to let me look inside one, i'm gathering info for a diy tutorial i will be doing.
thanks for the help though
update...
sorry for being away for so long this project is soon to be on the road,
some changes have been made though, i will be making the humidistat by the method described above but the thermostat has been changed.
i found a more extensive method for making the thermostat, heres the link to...