Assuming the heater I picked out is good for the $20 it is, I'm now looking at swamp coolers.
This looks pretty fly... http://www.amazon.com/KuulAire-PACKA.../dp/B003AO4680
Ja oder nein?
how big of a greenhouse are we talking here?
And it gets to be 100f outside in the summer, and it's in the sun? That cooler will not be enough my friend. I fear you need to step it up to something with a 8" blower or so... Like the mmb8... http://www.air-n-water.com/product/mmb8.htm I have a mmb10 for my 8x10. I have an mmb8 as my emergency back up... and it can't even keep up with my 8x10. the 220sq ft. the one you're looking at says- is misleading if you ask me, the one I linked is rated for 500 sq. ft. and look at the difference in them. Note: this has no controller... so it's on and off until you add a thermostat set up.
If I had the extra hundred to spend on that evaporative cooler you linked to, I would in a heartbeat. Is there another model for around $200+/- that your would recommend? I'll definitely consider the Adobe Air MMB8 though, I just need a cheaper backup plan if I decide not to go with the MMB8.
Plus, AFAIK the mmb series is gone ever since adobe air sold their company... the new "master cool" stuff is actually kinda crappy it seems. :-\ If opening the door is enough in your environment (not an option here ) then just about anything could help/should be enough for a bit of additional cooling. Also keep in mind, a lot of those ones like you are looking at must be hand filled... so you may want to look at one before you buy to see if it has room to add a float to. I would probably stay away from the computer controlled stuff- just because of the greenhouse environment. I'll see if I can look around for a cheaper option.
Oh, and I don't know if evaporative coolers are popular where you are as they are here.. but check craigslist- I have bought 2 from there that people barely used in their garage for really cheap... the mmb8 and mmb10...
Do you have any suggestions as far as the thermostat goes? Is there a simple one I can just plug the heater cord and the cooler cord into and set it to the temperature range I want?
Well, keep in mind that the cooler is discontinued. I purchased a few sets of replacement pads for mine wile they were still around. I never checked online for them though. I used the masterstat for the cooler... 110 at lowes. cheaper here: http://www.ebay.com/itm/MasterStat-E...item3373b00f58 if you are decent with wiring or have someone that can help.
For "cheap" (and i've never used them) there are these outlet things preset to temps.. like this: http://www.charleysgreenhouse.com/in...2=414&cid3=-99 and others a bit higher range. see some selections here: http://www.charleysgreenhouse.com/in...er.y=0&mtype=3
I'll check around at OSH, Lowes and Home Depot for thermostats and see what I can do as far as that goes. I wish there was a controller that had outlets I could just plug my heater and cooler into and set the temperature range.
There are plug in styles in the charley's link i gave you... lowes/hd definitely don't have them. I'll look around if i get a chance for other coolers.