cost of using a dehumidifier
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lovelyjubbly
Posts: 219 Forumite
in Energy
Just one more calculation please?
how much would it cost to run a dehumidifier?
the rate is 230w
my night rate is 5.89inc vat which I get for 7 hours
my day rate is 22.51 for the remaining 17 hours
what would the cost be for 24 hours?
the reason I ask is that I read somewhere (it may have been on here) that it would be cheaper to use a dehumidifier to keep a little used room aired, than to turn a heater on for say an hour a day, so I am trying to compare the price, if I did use it, I would probably only use it on the night rate, but would be interested to find out how much it would cost for 24 hours.
how much would it cost to run a dehumidifier?
the rate is 230w
my night rate is 5.89inc vat which I get for 7 hours
my day rate is 22.51 for the remaining 17 hours
what would the cost be for 24 hours?
the reason I ask is that I read somewhere (it may have been on here) that it would be cheaper to use a dehumidifier to keep a little used room aired, than to turn a heater on for say an hour a day, so I am trying to compare the price, if I did use it, I would probably only use it on the night rate, but would be interested to find out how much it would cost for 24 hours.
look after the pennies and the pounds look after themselves.
0
Comments

Number of watts / 1000 x unit price x hours
Day = 38p (17 hrs)
Night = 4p (7 hrs)0 
brysiewysie wrote: »Number of watts / 1000 x unit price x hours
Day = 38p (17 hrs)
Night = 4p (7 hrs)
?????
17hours x 230w = 3.91 kWh x 22.51p = 88p
7hours x 230w = 1.61 kWh x 5.89p = 9.5p
So about £1 a day.
That is assuming that
1. It is 230 watts and not 230 volts!
2. That it doesn't have a thermostat  I have one that cuts in and out as the required humidity is reached.
3. That you will be paying at tier 1 prices for the whole 17 hours every quarter.0 
Thanks brysiewysie and Cardew for your prompt replies
the dehumidifier is definately 230w
the leaflet actually says:
power comsumption 230w (at 30C  70C)
I dont think it has a thermostat, but has two speed settings
I think it might be usefull to just use it at night on the cheap rate as around 10p a night sounds very reasonablelook after the pennies and the pounds look after themselves.0 
?????
17hours x 230w = 3.91 kWh x 22.51p = 88p
7hours x 230w = 1.61 kWh x 5.89p = 9.5p
So about £1 a day.
That is assuming that
1. It is 230 watts and not 230 volts!
2. That it doesn't have a thermostat  I have one that cuts in and out as the required humidity is reached.
3. That you will be paying at tier 1 prices for the whole 17 hours every quarter.
Formula was right, damned calculator must be faulty!
0
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