Power

• Average kWh per Day: 10.512

These graphs were made with a few pointers from Paul Mutton. It seems that the power graph is quite accurate too. Over a calendar month, the real meter reading was just 1.8% higher. Not bad!

Temperature

This temperature graph was generated using the following:

• PC with USB, I'm using a Viglen MPC-L as it's really low powered but fully functional
• USB 8-Channel Data Acquisition Board purchased from FTDI
• DS18B20 1-Wire Sensor purchased from Home Chip
• CAT5 data cable to connect the sensors to the board
• A bit of perl code to access the USB device
• RRDTool to grenerate the graphs

Boiler Change

The boiler was plumbed completely incorrectly and the results of replumbing the system were amazing