I am working on heating my snake room and plan to put either a ranco or helix heating system to control my heat. The problem I am having is that I need some way to hook up the one space heater that I have so that it drops to mid 70s in the evening and mid 80s during the day. I knwo helix makes the night drop function for their helix, but I have read that its better to use the on/off type thermostat for a space/room heater rather then the helix. What do you guys think. I was thinking of buying two rancos and hooking them both up to timers but I couldn't figure out how to plug one heater into two rancos. Tell me what you guys think. Thanks everyone!!
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Paul Farmer
F & B Reptiles
pj_farmer@hotmail.com
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Need some help with heating and temperature control
pj_farmer
Sep 25, 2003 08:41 AM
Replies (1)
markg
Sep 25, 2003 07:52 PM
You have one heater with one wire to be switched: the hot wire.
You run two wires from this, one through the switched contact of the 70 deg Ranco and one through the 80 deg Ranco. So you have two T-stats in parallel, sort of. If any one T-stat is "ON" the heater is on.
Obviously the 80 deg Ranco will override the 70 deg Ranco. But, not of you use the output of a timer (a switched HOT line) to feed the input contact of the 80 Ranco. So now, the 80 deg Ranco controls the temp until its output is switched OFF by the timer.
Doing what I described means you must feed the power supply in the 80 deg Ranco with AC all the time, but the switched contact is fed by the AC from the timer.
I wish I could show you in a diagram. Much easier to understand.
