I have an old inefficient house with a new weather compensated condensing boiler. I am struggling to get the heating curves right as some rooms are too hot and others too cold. My suspicions are that some rooms are under heated (too small/inefficient radiators) while others are too warm.
So I can understand what is happening better, I would like to be able to log the temperature in three or preferably four locations concurrently so I can get an average across the house. I should then be able to see which areas need additional heat sources and which areas could be trimmed back.
Does anyone know of a relatively cheap multi-location temperature measuring and logging product?
Looks like you are new here, do you have SmartThings hub, any smart devices? Some z-wave motion sensors have temperature sensors built in, like these $23 ones at Monoprice. With some of those and a SmartApp (& a hub) you could log the data (for example, I use this: Google Sheets)
If you are just looking for stand-alone products, a quick search at Amazon turned up with some $19 devices you can plug into USB to download temperature data. I have no experience with these.
I use the esp8266 NodeMCU units with the DHT-22 sensor, and a simple USB wall wart, total cost per location is about $5. You just have to connect the items together and program it yourself. The Monoprice units are good if you don’t want to fool with any electronics.