67 % Gas Reduction for Warm Water with a Chat Bot

I noticed the saving calculation was only availible in German. 

Here the same graphs in English:

We did a measurement on consumption before, while and after Installation of certain methods.

You may see here three columns:

1. Before instalation with the warm water pump 24/7 (original configuration)

2. After installation of a simple Timer (40% Reduction)

3. After installation of a Chat Bot (67% Reduction)

I programmed a very simple Software in Arduino with a Telegram Bot.

Each user in our appartment can switch on the warmwater whenever he/she needs warm water. This may be needed for showering, washing dishes,....

This Switching on is done with your personal mobile and the Chat App Telegram Chat App

You may have a look how this Chat app looks here.

The User can select with short cut buttons how long the waterpump is running and when it is switched off automatically.

You May find the complete SW here:

https://github.com/Uspizig/Heiziabot/tree/main/Software

To enable the Warmwater circulation a simple Sonoff Switch is used.

This Wifi Switches can be programmed with Arduino IDE very simply

You may find this cheap on ebay, aliexpress, Amazon

This Hardware is ideal fo a small and reliable Switch to control our currently 24/7 running warmwater circulation pump