Plumbing

Is my hot water supply man enough for a power shower

Anonymous user 09/03/2024 - 2.58 PM

As part of a bathroom renovation I wish to upgrade my shower. I currently have an electric shower which has served me well but is too weak in winter due to the incoming mains temperature and too hot in the height of summer even at the lowest power/max flow. I want to get a powerful shower of the type you experience in a hotel - the type that nearly takes your skin off! I have a standard gravity water system with a 140l vented hot tank (with immersion heater built in that we have rarely used) in the upstairs airing cupboard and a cold storage tank in the loft. I realise I can go for either a mixer shower with pumped water supplies or go for the simpler power shower unit with the pump built in. My overriding concern is I have three teenage kids, who would probably drain the hot water in minutes. There are times when we all have showers one after the other. How can I gauge if my HW tank is big enough, if my boiler can replenish it quickly enough or if I'm going to need to upgrade the system? Is there a power shower unit that also heats the water like an electric to get the best of both worlds?