PLant schooling 2020. I do not have a green house. As I do not want to use plastic, I am now building warm beds with glass windows, which takes time and will be ready next year. In The meantime I use my stove for germination and put them outside as soon as temperature in the sun is clearly over 20. It worked well this year again (70 tomatoes, same with pumpkins, zuchini and so on).
The water tank is not mine, there is a wall on the southern side that separate me from my neighbor, and this is the warmest place.