Dehumidifier running costs how much energy does it use gas usa


I often get asked about the running costs and energy efficiency of dehumidifiers, after all, the cost of electricity is rising much faster than inflation. Even with the economy picking up I think that in the coming years and decades people are still going to look to save wherever they can, so it makes sense to do your homework before buying an electrical item, whether it be a television, microwave oven or a dehumidifier. Quick Summary

First of all, the cost of electricity currently is roughly 15 pence per kWh. Then, once a dehumidifier has become established and there’s a steady level of humidity in your home you can expect it to switch itself on for two to four hours per day to maintain your desired level of humidity. The actual length of time it’s switched on for will depend on how you’ve set the humidity level on the machine, the ventilation, the size of your home and the humidity sources in your home.

• Your home feels warmer – but how is this possible? This is due to the reduced moisture (humidity) in the air. Moisture in the air on cool days has a couple of effects, both of which make us feel cooler. Firstly and most simply, the moisture on our skin and clothes from the air takes in heat energy from our bodies and results in evaporative cooling. power outage houston txu This is has the same cooling effect that sweating does on hot days or during exercise.

• Your home requires less energy to heat. As mentioned in the previous point, the specific heat capacity of water is over four times greater than air, which means water takes over four times the energy to heat than air. At 20 degrees Celsius a cubic metre of air can ‘hold’ 18g of water, where the relative humidity would be recorded at 100%. At 45% humidity (ideal for humans) a cubic metre of air will ‘hold’ 8g of water.

A 4-bed house could contain roughly 1000 cubic metres of air. In a UK house the humidity is unlikely to ever hit 100%, so for this calculation we’ll assume 75%. This house would hold an extra 5.4kg of water in the air at 75% rather than the 45% ideal. It takes 0.0063kWh to heat this 5.4kg of water by 1 degree Celcius (trust us). e payment electricity bill bangalore If your heating came on twice per day and needed to heat your home by 2 degrees Celcius each time then this would equate to just over 9kWh per year, which at 15 pence per kWh is about £1.40 per year… So this point isn’t very important in the overall running costs equation.

• Everyone knows that poor ventilation can cause mould, damp, condensation and all the nasties that you buy a dehumidifier to fix and prevent coming back again. Often the way that we combat these effects it to leave the bathroom window open after a shower, leave other windows open to flush out the stale air and leave the ventilation flaps on the windows open, even during winter.

The great thing about owning a dehumidifier long term is that once the initial drying out period is finished, when the machine has extracted all of the excess water from your home, ventilation won’t be as important, as essentially the dehumidifier is doing that for you. This means you can close off those energy-wasting drafts, which will make your home much more energy efficient, warmer and keep your heating bills lower. The US government believes blocking off drafts can result in savings from 5% to 30% per year. The average UK heating bill is now over £600 per year, so saving 5% by being able to reduce ventilation through owning a dehumidifier could save the average person £30 per year.

• Damage to walls through excess water, peeling paint and mould growth, damage to windows through condensation and damage to soft furnishings by being in a humid environment is, along with the potential health benefits of owning a dehumidifier (less mould spores etc.), one of the main reasons for purchasing one. Estimating the annual cost of these damaging effects is very difficult as it will vary wildly depending on the house, however a 5L tin of paint per year at £30 doesn’t seem excessive.

• Before we took the plunge and bought a ‘proper’ dehumidifier, we spent just as much on stop-gap measures such as anti-mould sprays and paints, boxes of zeolite material that capture water vapour and a whole myriad of other products. electricity 4th grade powerpoint We realised that while most of these items helped in the short term, they were really only papering over the cracks and we’d be spending money almost incessantly on these items while we lived in the house. So we decided to bite the bullet and buy a dehumidifier, a once off purchase that ensured we fixed the problem once and for all. Again, for our very rough calculations, let’s say you spend £20 on these per year.

So unsurprisingly, a website that advocates the use of dehumidifiers comes out in favour of dehumidifiers! However, I think if you take a look at the calculations above you’ll see that we aren’t wildly off the true cost of ownership, or at the very least you should now understand that owning a dehumidifier is a pretty sound investment. Take a look at our favourite dehumidifier here.

I’d like to know what you’re wanting the dehumidifier for. Are you wanting it to control the humidity in the whole house or just in the utility? If it’s just the utility then to minimise the amount of energy you’ll use I’d recommend tightly sealing the room of draughts, both from the outside but also the rest of your house as the air there will be more humid and will try to diffuse in, once the dehumidifier is running. Keeping the whole house at the right humidity does bring health benefits though.

It sounds like you’re wanting to both dry clothes and remove the mould and condensation. If you just want to dry the clothes then the dehumidifier will do this over a set period of time and doesn’t need to be on 24/7, although it will not be particularly efficient (and slower) as it’ll likely have a long way to reduce the humidity when it initially gets switched on. However, if you’re wanting to remove the condensation then you’ll need to keep the humidity below the dew-point for the whole day and this will require the machine switched on 24/7. Although, you could get away with just having the machine on overnight as the worst condensation occurs in the morning when it’s coldest outside. electricity transmission vs distribution If you have the right electricity tariff you may also find that your electricity is cheaper overnight too and so this is another bonus with just running it overnight. electricity jeopardy powerpoint If you want to remove the mould and stop it coming back then you’re going to need to run the dehumidifier 24/7 to keep the humidity maintained below 60%RH, which is where the mould can’t grow ( see this article for more).

Remember that while a dehumidifier’s fans are running constantly, the actual dehumidifying process is not once it is ‘bedded in’ to your home (takes a good few days of it being switched on). The machine only dehumidifies when it needs to, so the majority of the time (providing your home is well-insulated) it isn’t using very much energy. This means that it can be surprisingly efficient to run a dehumidifier 24/7, because it doesn’t have to work very hard, compared to turning it on for a few hours every day, which means it has to work very hard for those few hours.

With this in mind, the two best ways to clear the condensation are to either warm the walls/ windows, which isn’t practical, or to reduce the amount of water being ‘held’ in the air (i.e. humidity). To make the air dry enough to not release water on to cold surfaces you need to get the humidity in your son’s room to at least 60% relative humidity and on cold nights the humidity will need to be lower (because the walls/ windows are colder), possibly around 45%RH.

It sounds like you have a manual dehumidifier, with a ‘low’ to ‘high’ dial. Assuming this is a full-sized machine, generally speaking, ‘low’ on these machines means that the dehumidifier will aim for around 80%RH, which is too high for the UK. To get the humidity to 60%, you’re probably going to need to set it to just over ‘medium’ power, and to get it to roughly 45%, on ‘high’.

With regards to leaving the window open, have you got a vented window in the room? If so, check that it’s open and just use that. If you don’t have a vent there, I wouldn’t leave it open, as you’ll simply lose too much of the ‘dry’ air you’re creating in the bedroom to the outside. Assuming the dehumidifier is powerful enough and you’re leaving it switched on 24/7, I would leave the bedroom door open to encourage ventilation.

Again we have been using dehumidifiers for many years in both our homes and I can concur that your cost benefit analysis is very conservative on savings. gas under a dollar Apart from what has been said so far having no musty smells no damage to decor from mould and condensation is a major benefit when arriving at a place that has not been lived in for a while. In my view for asthma sufferers such as myself they are a must have. We have always used Ebacs they are excellent machines albeit more expensive than most. They all have very reliable automated humidistat’s and I would recommend the models have an constant drain pump. For the uninitiated this means with aid of the constant drain kit you can just leave them on and they will work away keeping the humidity just right. You just need to be aware that they don’t work as well at low temperatures below 10 degrees which is not a problem in most homes but it is if the heating is off for some time in which case just turn it off until the heating kicks in or put a timer on the plug.