Another thought about hot water
Something I was meaning to mention in the previous posting but forgot:
What would happen if a house's hot water system were heavily pressurised then run using thinner pipes? Well, apart from the pipes bursting, of course, but presumably people know how to make pipes that are robust enough?
With a centralised hot-water tank I have to wait a while for the water to run hot whenever I turn a tap on. By the time I want hot water again, the water in the pipework is merely lukewarm.
If the hot water system used a higher pressure and thinner pipes it could achieve the same flow rate with a smaller volume of water in the pipework. This would mean firstly that taps would run hot sooner and secondly that less hot water would go to waste once the tap had been turned off.
Alternatively, how come domestic hot-water pipes aren't lagged? Or has the news that they've started being lagged passed me by?
What would happen if a house's hot water system were heavily pressurised then run using thinner pipes? Well, apart from the pipes bursting, of course, but presumably people know how to make pipes that are robust enough?
With a centralised hot-water tank I have to wait a while for the water to run hot whenever I turn a tap on. By the time I want hot water again, the water in the pipework is merely lukewarm.
If the hot water system used a higher pressure and thinner pipes it could achieve the same flow rate with a smaller volume of water in the pipework. This would mean firstly that taps would run hot sooner and secondly that less hot water would go to waste once the tap had been turned off.
Alternatively, how come domestic hot-water pipes aren't lagged? Or has the news that they've started being lagged passed me by?