Getting Started with Thermostat

howdy,
i total newbie arduino , need advice on ideas in regard of idea.
i built thermostat home hvac using arduino.
the requirements are:
wifi access set temperature
temperature sensor in different room thermostat
usage of 24v power supply standard honeywell thermostat uses
lcd display , push buttons set temperature @ unit
outside temperature sensor (as want set inside temp in relationship outside temp)

basically should nest, sensor in different room , outside sensor.

i googled, found solution airq http://dev.airqnetworks.com/

to honest not kind of projects beginners do!!!

that sounds project well-experienced electronics engineer. not mean can not done.

you need learn different parts of dealing arduino such as:

1.using thermistor/temperature sensor , you'd learn following tutorial here:
http://oomlout.com/a/products/ardx
click on circ-10
now practice project need arduino presume u got , following parts:
breadboard
jumper wires
circuit layout found here -> http://www.ardx.org/src/circ/circ10-3dexploded-445.png
temp sensor part # tp36
once you've done project in dealing temp sensors.

2.using voltage regulators.
shown here -> http://www.youtube.com/watch?v=4sr4uvw--le
except in case want 7809 or other variants can turn 24 volts 9 volts can feed arduino.
or simpler solution use stand alone power adaptor arduino ranging between 7 12 volts.

3.monitor , controls this:
http://www.youtube.com/watch?v=zubjobhcjye
http://www.amazon.com/sainsmart-display-arduino-mega2560-mega1280/dp/b007myzf9s/ref=sr_1_3?ie=utf8&qid=1372047998&sr=8-3&keywords=arduino+screen+shield

i dunno wifi cause have not tried yet.

good luck.

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