A comment
The apartment inherited, it was without a central hot water supply. My husband and I immediately decided to purchase a new gas water heater, in order to avoid problems. Of all, I liked the flow column from the VEKTOR brand, model JSD 20-W.
The column is very convenient to use, it has an electronic device that automatically turns on the ignition, after you turn the hot water tap. Electric ignition from two batteries works, they have to be changed no more than once every six months.
This model of the column is equipped with a digital indicator, thanks to which you can control and adjust the water temperature in the right direction.
The column weighs 10 kg, its dimensions: 60X34.5X18.5 cm.
Of the shortcomings, it was only noticed that the column worked poorly with a weak pressure of water, or it released boiling water from the tap, even if the temperature was at a minimum
pros
Electric ignition, digital indicator of water heating, winter / summer switch, price.
Minuses
With low pressure it does not work well