I got my Johnson Controls thermostat from Pro Exotics a couple of years ago and am very happy with it. The price was good and the service was excellent. I have also seen them on the RBI website for a good price and have had great experiences with RBI as well. Pro Exotics wires theirs to a 6 outlet power strip as does RBI. RBI does have an option to have it wired to a single outlet power cord which is nice when using it with a room heater. Either way is fine, just personal preference.
As for the wattage. I did have trouble with mine tripping the breaker on the power strip when I first got it. Once I started running the heater on the medium setting, however, I had no issues. I have a pretty small herp room and I live in FL so the medium setting is plenty to keep the room warm even on the coldest days.
I don't know about the different A419s. Could just be the difference between night drop capable or not. Overall, I am very happy with mine. Hope this helps.
Rob
>>buy a jonson controls thermostat.
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>>Q. 1. What model do I need? I am pretty sure I need the A419 but there are a few different A419s.
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>>Q. 2. I am running a 1500w oil filled heater, so givin' that the Jonson is rated to exactly 1500w is it safe to assume that it would not be a good idea to run the heater on hi? Should I run the heater at medium (1,000w)? Right now I am stuck to running it on low because my herpstat can't handle any higher than that which is why I am getting the Jonson. So...Hi? or Med?
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>>And Q. 3. Where might I find a good price on this unit?
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>>Thanks