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Thermostat that sends X-10 to turn on/off electric heater
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dana7



Joined: 22 Oct 2008
Posts: 2

Posted: Wed Oct 22, 2008 8:02 pm    Post subject: Thermostat that sends X-10 to turn on/off electric heater  

Hello,
I am looking for a thermostat that will send an X-10 code to enable/disable a battery of small electric heaters spread throughout my home. Does such a thermostat exist?

Thanks!
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dana7



Joined: 22 Oct 2008
Posts: 2

Posted: Tue Dec 30, 2008 10:48 pm    Post subject: I guess not!  

OK, I will take three months of silence as a no... so, I guess I will have to build my own.

I can use appliance modules to control 1,500 watt heaters - I have been doing this for years with an x-10 based load management system - so I know the modules can take it. I also confirmed they are approved for this much resistive load with the manufacturer. I generally run the heaters on their low (750 watt) setting anyway.

I have a PIC-based system breadboarded that uses a MCP-9701, three-wire temperature sensor. It senses and controls heat well, and reports the temperature and setpoint on an LCD. I have been working on the x-10 part of it using a TW-523. The code is a bit tricky and if any of you know of any decent routines already written that interface a PIC to TW-523 (I will need two-way communication so I don't step on commands from the load management system) it would save me a month!
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