Gas Showers

Nanako

Cardew wrote: »

As far as I am aware no electric shower is 'pressurised' i.e. is a form of power shower. Even the most powerful electric shower(10.5kW) does not provide sufficient hot water for a 'power shower'.

Umm, the water comes out with some sort of pressure? Rather than merely falling by gravity.

I've seen some "showers" that just diverted water from the bath taps and had no additional pumping mechanism, the water from them literally just falls out of the showerhead with no meaningful pressure at all

Cyberman60

Hi,

I've got a Mira Sport 9.8 KW electric shower. By coincidence I also use Ebico as it's advantageous for low usage as there is no standing charge.

I think I save a lot as I do not have my hot water or heating on much, and the shower heats your water there and then. It's a brilliant shower and very convenient IMO, and of course the heat is adjustable so you can save by showering at a lower temperature. I don't shower every day (I do wash though...LOL) either as I personally don't believe it's good for you as good health needs good bacteria etc.

If you don't have an electric shower then you'll need to install a pump (or have a shower with an integral pump called a power shower) which can be noisy as opposed to my electric shower, and of course heat a lot of water for no reason, and also it's yet another thing that can go wrong.

My shower only cost about 130 quid about 4 years ago and 250 quid to install.

HappyMJ

Nanako wrote: »

I have no frame of reference for this data.

Also, my shower is a Triton T80si

Your shower is an 8.5kWh shower providing up to 8 litres (in my experience about 5 litres) of water heated up by 30 degrees.

Basically you'll use around 3 times more energy at one third the price so it'll cancel itself out but you'll use twice as much water increasing your water bill if you are on a meter.

Cardew

Recommended shower temperature is 41 to 43C. So raising the input water temperature by 30C will be sufficient for much of the year, and 11.3 litres/min is a more than adequate flow.


In winter when inlet water temperature can be less than 5C your flow will be less.


One disadvantage of a combi feeding a shower is that you need to ensure that your roommate doesn't attempt to run hot water while you are in a shower.

Cyberman60

Nanako wrote: »

Umm, the water comes out with some sort of pressure? Rather than merely falling by gravity.

I've seen some "showers" that just diverted water from the bath taps and had no additional pumping mechanism, the water from them literally just falls out of the showerhead with no meaningful pressure at all

On my electric shower the water comes straight from the mains which drives the pressure, methinks. I used to have a basic shower with a simple mixer valve and the pressure was hopeless.

Fruit_and_Nut_Case

Cardew wrote: »

One disadvantage of a combi feeding a shower is that you need to ensure that your roommate doesn't attempt to run hot water while you are in a shower.

This drawback can be avoided by showering together

Cardew

Cyberman60 wrote: »

On a power shower the water comes straight from the mains which drives the pressure, methinks. I use to have a basic shower with a simple mixer valve and the pressure was hopeless.

A power shower uses water from a hot water tank and is pumped at pressure to the shower head.


This gives a good explanation of the types of shower


http://www.which.co.uk/home-and-garden/home-improvements/reviews-ns/best-electric-and-power-shower-brands/how-to-choose-the-best-shower/

lstar337

HappyMJ wrote: »

Your shower is an 8.5kWh shower providing up to 8 litres (in my experience about 5 litres) of water heated up by 30 degrees.

Basically you'll use around 3 times more energy at one third the price so it'll cancel itself out but you'll use twice as much water increasing your water bill if you are on a meter.

Only if she runs it at the full 3x the flow. If it's kept at the same flow rate as the electric heater it'll be a third of the cost.

The cheapest solution if you plan to change is to get a thermostatic mixer tap and replace the taps on your bath. Otherwise you will have to get a plumber in to bring some pipes up, fit the shower and make good the wall. This only works if it is over a bath of course.

It's a fair chunk of outlay, and payback would be quite some time.

Cyberman60

Cardew wrote: »

A power shower uses water from a hot water tank and is pumped at pressure to the shower head.


This gives a good explanation of the types of shower


http://www.which.co.uk/home-and-garden/home-improvements/reviews-ns/best-electric-and-power-shower-brands/how-to-choose-the-best-shower/

Let's put this another way. Mine is an electric shower which drives off of the mains. The shower is very powerful, but it's not a pumped shower. I can't imagine that a more powerful shower would be required than the one I have.

Nanako

I showed this thread to a friend, and he wanted me to post something on his behalf

"i was reading this thread that my friend posted. and i see everyone uses the units wrong. keep in mind that kW is a power (as in, a shower may be 8.5 kW). kWh is energy (literally, 1 kWh is 1 kW, for an hour). flow is in liters per unit of time (for example, liter per second, liter per minute, etc). liter is a volume: if a shower were rated as "8 liter", then that would either be a tank volume, or it would be the entire amount of water that it can ever output. Mostly HappyMJ is guilty of these mistakes