Here is the deal I have my wood boiler, I am playing with dampers on flue, burning coal and soon to have a 575 gallon storage tank online. I am looking for ways to keep and eye on whats doing what. Right now i am using a outdoor wireless thermometer w a probe to keep track of boiler temp. (without going out to look at boiler) I put it in the return as it will only go to 140 deg. then it reads offline. But I know if it is offline line my supply temp. is around 170 deg. (my target temp) or higher?? but I would like a setup to where I could see my boiler temps (supply/return and maybe my tank temps and possibly what is doing what? If I could make it using probes and some sort of control panel would be COOL!! but I am open to any suggestions. Thanks for the site and all you guys who help out it is quite fun to read and learn stuff!!