Hello: You might want to take a look at a recent post by
stargazer (06-08-2010). He has this link which gives you step-by-step instructions for installing a thermostat he purchased from Rona I believe.
This is the website:
http://virtualgarage.wikispaces.com/...tal+Thermostat ( I think I have it right)
If you need help finding his post, send me a PM and I will assist you.