On Friday, February 14, 2014 2:46:21 AM UTC, Bill Wright wrote:
polygonum wrote:

Irrelevant, but in some council-run district heating schemes each

dwelling has a device on the wall that measures the room temperature and

this is used to calculate the bill for that dwelling. So the residents

drape bags of frozen peas over the device.


Maybe once, but a modern system would have the same sensor controlling the room temperature frozen peas would activate a sensor low level alarm.
You'd need a heat meter now I think (flow rate sensor and F&R temperature sensors).
Bill