There is a corner of France in Burgundy where the thermometer near -20 ° c in winter, the houses have lava roofs, walls one meter thick and where it is good to heat!
Jeanne & Emmanuel live in a peaceful house in the midst of this sometimes hostile climate. One day, a Saturday, when one of them wished to take a shower, what was not his surprise to be under a jet of cold water. Horror! The heater was not working anymore!
The expertise of the boiler allowed to quickly conclude that there was more fuel. What to do ? Distributors are closed and do not deliver until Tuesday! The patience and hardiness of the couple was tested but they held good! They swore, however, never to run out of fuel! Alas he found no simple, agile and connected gauge on the market.
They decided to create it!