by JDT

Solar water heating system. 30 x 58mm evacuated tubes, facing south. 180l tank. Sussex, UK. The tank is also heated by a woodstove, oil boiler or by electric immersion heater.

by hayhurst

A 3 square metre evacuated tube solar hot water system mounted on a roof with 20deg inclination and South orientation.

by critters

Monitors the pool and air temperature using an Arduino Pro Mini, ESP8266 WiFi chip, and a couple of DS18B20 temperature sensors. Samples the temperatures every 2 minutes and then transmits the median value from the last 5 readings every 10 minutes.

by kryten2x4b

Temperature monitoring at home and work using RPi and temp sensors