Undecided ... electric only

Energy28

Hi

I am literally going round in circles, based on limited knowledge in this area 

We are electric only (mid terrace, no space for oil, lpg, heat pump) in a town with no mains gas.

We have saved to do our bathroom (ground floor and only bathroom).

We have economy 10 and storage heaters and no shower.

We want a shower but can decide on the following...

Bath with shower above (steel bath?) So we have option and keep costs down 

Walk in shower only 

If we go with a walk in shower our 117ltr tank will only be used  for sink in bathroom and kitchen and we have a dishwasher. The tank would still be heater during the 10 hours off peak. Are there other cheaper options.... under sink direct hot water?

We are with EON E10 22.5p peak and 13p off peak.

Any practical advice gratefully received 

Tia

brewerdave

Assuming that the cold water tank is in the loft ,then there will be enough head to allow a walk in shower on the ground floor , to be gravity fed so that would use hot water from your hot water tank ? I presume you were thinking of an electric shower ? VERY expensive option on day rates.

yelias

Energy28 said:

Hi

I am literally going round in circles, based on limited knowledge in this area 

We are electric only (mid terrace, no space for oil, lpg, heat pump) in a town with no mains gas.

We have saved to do our bathroom (ground floor and only bathroom).

We have economy 10 and storage heaters and no shower.

We want a shower but can decide on the following...

Bath with shower above (steel bath?) So we have option and keep costs down 

Walk in shower only 

If we go with a walk in shower our 117ltr tank will only be used  for sink in bathroom and kitchen and we have a dishwasher. The tank would still be heater during the 10 hours off peak. Are there other cheaper options.... under sink direct hot water?

We are with EON E10 22.5p peak and 13p off peak.

Any practical advice gratefully received 

Tia

How do you plan to heat the hot water for your shower (irrespective of whether or not it is above a steel bath)?

I hope it's not by using electricity at 22.5p /kwh

Have the shower supplied via the hot water tank that will be heated using electricity that currently costs only 13p / kwh.

Energy28

Thank you both for your replies.

The cold water tank is just above it in the loft space in the single story extension. 

Would the hot water cylinder (117ltr) be big enough for 4 people to have showers? Do I need a different kind/ size of hot water cylinder? 

Energy28

brewerdave said:

Assuming that the cold water tank is in the loft ,then there will be enough head to allow a walk in shower on the ground floor , to be gravity fed so that would use hot water from your hot water tank ? I presume you were thinking of an electric shower ? VERY expensive option on day rates.

The cold water tank is just above it in the loft space in the single story extension.  I dont think the water tank would have enough for 4 adults. What other options do I have?

yelias

Energy28 said:

Thank you both for your replies.

The cold water tank is just above it in the loft space in the single story extension. 

Would the hot water cylinder (117ltr) be big enough for 4 people to have showers? Do I need a different kind/ size of hot water cylinder? 

Energy28 said:

brewerdave said:

Assuming that the cold water tank is in the loft ,then there will be enough head to allow a walk in shower on the ground floor , to be gravity fed so that would use hot water from your hot water tank ? I presume you were thinking of an electric shower ? VERY expensive option on day rates.

The cold water tank is just above it in the loft space in the single story extension.  I dont think the water tank would have enough for 4 adults. What other options do I have?

Is the hot water tank (117ltr) currently big enough for 4 people to have baths?
A shower typically use less water than a bath.

Most people have their cold water tank in the loft and their bathroom on the first floor, so effectively the same as you.
But if you are concerned about water pressure, then have you considered fitting a power shower.

Energy28

yelias said:

Energy28 said:

Thank you both for your replies.

The cold water tank is just above it in the loft space in the single story extension. 

Would the hot water cylinder (117ltr) be big enough for 4 people to have showers? Do I need a different kind/ size of hot water cylinder? 

Energy28 said:

brewerdave said:

Assuming that the cold water tank is in the loft ,then there will be enough head to allow a walk in shower on the ground floor , to be gravity fed so that would use hot water from your hot water tank ? I presume you were thinking of an electric shower ? VERY expensive option on day rates.

The cold water tank is just above it in the loft space in the single story extension.  I dont think the water tank would have enough for 4 adults. What other options do I have?

Is the hot water tank (117ltr) be big enough for 4 people to have baths?
A shower typically use less water than a bath.

It was when they were little, but it's just not practical now. 

Gerry1

Back of envelope calculation: 12 litres/minute shower, assume 60% hot water because it'll need to be mixed with cold to avoid scalding, so 7.2 litres/minute of hot water.  For four people, that allows showers of four minutes each, but that's with no allowance for washing up and hand washing.

Sounds like you need a bigger hot tank.  Make sure the floor can withstand the load !

Reed_Richards

Energy28 said:

Would the hot water cylinder (117ltr) be big enough for 4 people to have showers? Do I need a different kind/ size of hot water cylinder? 

There are two types of hot water cylinder, vented and unvented.  In the case of the unvented type the water in the cylinder is pressurised so you don't need to worry about the head of water between the cylinder and the shower outlet.  Do all your cold taps deliver water at mains pressure?

Energy28

Reed_Richards said:

Energy28 said:

Would the hot water cylinder (117ltr) be big enough for 4 people to have showers? Do I need a different kind/ size of hot water cylinder? 

There are two types of hot water cylinder, vented and unvented.  In the case of the unvented type the water in the cylinder is pressurised so you don't need to worry about the head of water between the cylinder and the shower outlet.  Do all your cold taps deliver water at mains pressure?

Yes all high pressure 

Energy28

Gerry1 said:

Back of envelope calculation: 12 litres/minute shower, assume 60% hot water because it'll need to be mixed with cold to avoid scalding, so 7.2 litres/minute of hot water.  For four people, that allows showers of four minutes each, but that's with no allowance for washing up and hand washing.

Sounds like you need a bigger hot tank.  Make sure the floor can withstand the load !

Thanks Gerry.

If I wasn't so close to retiring I'd move.

We looked at air source pumps as a future option, but I just dont get it all. 

I just want to be able to jump in the shower and not have Bill's higher than my current 2k +