Because when you turn on the cold tap on you reduce the pressure on the cold feed to the water heater and it turns it off (a bit like tricking it into thinking the hot tap has been turned off) and turns the gas supply off. I'd guess you have an older type heater that uses a diaphragm to open the gas valve. It should be an straight forward job for your gas fitter.
To ensure your home has a reliable and efficient system for providing instantaneous hot water, consider installing a tankless water heater. These units heat water on demand, providing hot water quickly and efficiently without the need for a storage tank. Additionally, regular maintenance and proper insulation of hot water pipes can help improve the system's performance and energy efficiency.
I once had a caravan fitted with an instantaneous water heater.
dry ice and water enjoy
By locating the thermostat and turning it down
To prevent the water turning into ice
pull the spark plug out and start turning the engine over and watch the water fly!
Well start by turning on the electricity, then turn on main water valves, turn on all sink, tub, toilet faucets and let water run until air is bled from system. Check system for leaks. Should be good to go after flushing toilets to remove anti-freeze from the bowls.
If it is copper pipe, the walls of it will start pitting and turning green and white and then eventually start spitting water out.
Yes. Lava will cool in water, though it might not be instantaneous.
Installing an instantaneous hot water heater in your home can provide benefits such as energy efficiency, cost savings on utility bills, continuous hot water supply, and space-saving design.
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The instantaneous speed of water molecules in a bucket of water would vary due to the random motion and collisions between molecules. On average, the speed of water molecules at room temperature is around 500 m/s.