How much does it cost to run a bath?

OzZie

OzZie

OzZie

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Just a debate me and my dad were discussing :)

He says it costs a couple of quid per bath, but i reckon it must be lower than that considering some people have a bath every day. :confused:

Anyone know the average price to run say an average sized bath? (ie half-full or thereabouts) If it helps the new boiler was like £2000 if that will make any difference. :)
 
well for me its cheap i spend £300 a year on oil (oil central heating) and i have a shower every day and my wife has a full to the top bath every day
 
paul_64l said:
well for me its cheap i spend £300 a year on oil (oil central heating) and i have a shower every day and my wife has a full to the top bath every day
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I imagine these days a shower is more expensive to run than the bath anyway. My last shower on low belted out 14 litres of water per minute and about 18 on full whack.

Yet having a bath I never emptied the 120 liter tank. Likely your new boiler is a condensing boiler so is pretty economical and a bath I reckon would cost about 25p in heating. Cant see it costing much more than that.
 
Ahh dam we did this in one of our lectures at university, Basic Scientific Principle for us Geologists who can't count (me)

We took an average sized bath, the cost of gas per kw/h how many kw of energy required to heat specific quantity of water from a certain temperature to a certain temperature, factored in the efficiency of the boiler, and came out with a figure.

Between a dozen teams, we had answers ranging from 5p - 80p most of the answers were in the region of 20 - 40p iirc.

The rang of answers was due to varying amounts of water, gas rates, and temperature of the water.
 
Due to have a bath tonight, so I'll do before and after figures on my meter, and you can take it from there. :)
 
basmic said:
Due to have a bath tonight, so I'll do before and after figures on my meter, and you can take it from there. :)
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You make it sound like it's something you don't do often :D
 
Jonny69 said:
You make it sound like it's something you don't do often :D
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Cheeky son of a gun! Just my first decent night to have a drink and chill in the bath at the same time. :cool::)

22:00 - 2547.091
22:15 - 2547.733 - bath approx 2/3 full of water, from the hot tap only.

Cost to run a bath, including standing charge for 15 minutes: £0.19

This is using hot water straight from a combi boiler, with hot water setting at about 80%.
 
OzZie said:
Anyone know the average price to run say an average sized bath? (ie half-full or thereabouts) If it helps the new boiler was like £2000 if that will make any difference. :)
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£2000 for a new boiler? they saw you coming. just done a 5 bedroom victorian house, over specced the boiler to make sure it heats the place easily, can run two showers at once (added an ensuite) and have the spare capacity to still use the hot water taps etc. that was a top spec Alpha boiler, and it's huge. that boiler was only around £1000.
 
GeX said:
£2000 for a new boiler? they saw you coming. just done a 5 bedroom victorian house, over specced the boiler to make sure it heats the place easily, can run two showers at once (added an ensuite) and have the spare capacity to still use the hot water taps etc. that was a top spec Alpha boiler, and it's huge. that boiler was only around £1000.
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Maybe he means plus installation costs as well as materials?
 
basmic said:
Cheeky son of a gun! Just my first decent night to have a drink and chill in the bath at the same time. :cool::)

22:00 - 2547.091
22:15 - 2547.733 - bath approx 2/3 full of water, from the hot tap only.

Cost to run a bath, including standing charge for 15 minutes: £0.19

This is using hot water straight from a combi boiler, with hot water setting at about 80%.
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Yes but the total cost of the bath isn't 19p is it - what about the cost of heating the water.
 
Now i can tell you exactly as we have a prepay meter. Before i ran the bath ( with noting else using the gas at the time ) we had £21.19 credit. After filling the bath to about 60% full with hot water we had £21.01 left. My combi boiler heats the water as required and dosent have a store of it.

The cost to run a bath at my house is 18p :p
 
dirtydog said:
Yes but the total cost of the bath isn't 19p is it - what about the cost of heating the water.
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That was my gas meter reading, so was therefore the cost of heating the water.

Not sure about how much it would cost for the the water, but who cares...mine's on tap, unmetered. :cool:
 
basmic said:
That was my gas meter reading, so was therefore the cost of heating the water.

Not sure about how much it would cost for the the water, but who cares...mine's on tap, unmetered. :cool:
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Same here.. :D

That's an interesting experiment Basmic.. I still think that 19p sounds a bit much. May I asked how you calculated the cost? The reason i ask is that for a family of 4 we have a lot of baths and we have a massive corner bath too. We get through 80 gas units a every two months.
 
Admiral Huddy said:
Same here.. :D

That's an interesting experiment Basmic.. I still think that 19p sounds a bit much. May I asked how you calculated the cost? The reason i ask is that for a family of 4 we have a lot of baths and we have a massive corner bath too. We get through 80 gas units a every two months.
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Basically read the meter before and after running the bath, and punched the meter readings into my spreadsheet where I hold all my meter readings. The said spreadsheet calcutes the standing charge and cost per kWh, including the calorification value.

Cost per kWh: £0.02597
Daily standing charge: £0.12075

Of course, it's not a straight £0.12075 added on the total value.

I work out how many days have passed between the readings, multiply the days (ie: 0.5 (half a day), 7.5 (a week) by the standing charge to get my total standing charge cost.

Put it another way - I removed the standing charge calculation, and the cost was still £0.19. :p

That enough detail for you? ;)
 
Ok interesting direct comparison here just off the back of a fagpacket

On Basmic's figures that's 6.42 units to run a bath, on my gas rate that's 6.42 x £0.03 = £0.19, I'm on a water rate which equates to about £0.88 per day so it makes it hard to calculate the cost of the water.

A 5 minute shower as a comparison: 24KW combi boiler say it's working flat out. That's 24KWH x 5minutes = 2 units, 2 units x 3p per unit = 6p for a shower. Cheap! It's probably less than that because like Baso's boiler mine is on the 80% setting.

So if that was an 8KW premium electric shower at 10p per electric unit that would cost... 6.6p
 
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