If you have flashed your Shelly 2.5 with ESPHome, make sure to configure GPIO16. Otherwise, the pin will be short-circuited and cause the unit to heat up significantly, creating a potential fire hazard!
ESPHome Firmware for Shelly (Toggle Relay when no connection to WIFI or HA) - ESPHome - Home Assistant Community
Yet another Exploding Shelly post. : r/homeautomation
(old posts, page 34)
Shelly 1PM caught fire. any reliable replacements for 16A relay that works well with HA and has power monitoring? : r/homeassistant
Support for Shelly 2.5 · Issue #5592 · arendst/Tasmota · GitHub
Setting up Emporia Vue 2 with ESPHome · GitHub
Temperature Shelly 2.5 very hot · Issue #333 · mongoose-os-apps/shelly-homekit · GitHub
Shelly 2.5 getting hot to touch (63°C external case) - should I be worried? - Hardware - Home Assistant Community
Tagged ESPHome Simply Explained
Shelly 2.5 getting hot to touch (63°C external case) - should I be worried? - Hardware - Home Assistant Community