It has always been our dream to have the option of showering at our parties. However, it's not a straightforward matter because in an underground club, it's prohibited to use gas, and an electric water heater wouldn't be sufficient to handle the demand when 50 people want to take a shower. The only option is an electric on-demand water heater, but it consumes a significant amount of electricity, which would make it impossible for other essential systems in the club to function, including the 3-phase ventilation system and the 3-phase sewage pump, both of which we need. In the end, we opted for a compromise solution: a lower capacity water heater capable of providing only modestly heated water. So don't expect a luxurious spa experience, but it serves its purpose: if you don't open the tap too much, it can somewhat warm up the water.