elec cost to run a 750w pc?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
- Status
- Not open for further replies.
#1
-
Add bookmark
-
#1
how much does it cost to run a 750w PC? my current pc uses about 200 watts. i’m a little worried the bill might be too high if i get a new PC
#2
-
Add bookmark
-
#2
Keep in mind that a «750 watt power supply» won’t be emitting 750 watts all the time, nor using it.<BR><BR>The only way to know for sure is to measure the new machine’s power consumption, and then look at your electric bill for what they charge you per KWH.
<BR><BR>If electric costs you 10 cents/KWH, then running a 500 watt load for two hours, or a 100 watt load for ten hours, costs you ten cents. <BR><BR>Let’s say your new PC uses 200 MORE watts than the old one. Then running it ten hours a day will cost an extra 20 cents/day, or six dollars a month.
#3
-
Add bookmark
-
#3
If you build your own.
Getting a 80Plus certified power supply probably will keep electricity down.<BR><BR>And if you buy. Most majors have started to offer PC’s with this option also.
#4
-
Add bookmark
-
#4
If you can afford to build a PC that uses 750W, then you won’t care about cost of power as it’ll be a drop in the bucket.
<BR><BR>As DG said, if a PSU is a 750W model, that doesn’t mean that’s what it uses. In actuality, your PC will use about 200-350W if it’s like most others.
#5
-
Add bookmark
-
#5
Its pretty hard to hit 250w even. How many CPUs are you planning on?
#6
-
Add bookmark
-
#6
Step 1.
Get a kill-a-watt.<BR><BR>Step 2. Put your junk in that box, er, no wait, that’s not right. Let’s try again.<BR><BR>Step 2. Plug the kill-a-watt into an outlet and the PC into the kill-a-watt.<BR><BR>Step 3. Read the kill-a-watt and see how much power your computer is actually drawing (again, even on a 750w PSU it is likely to be much, much less.)<BR><BR>Step 3a. For completeness, test it both while idling and while doing something intense in a 3d game/app.<BR><BR>Step 4. Look at your power bill and see what your rates for kilowatt hours are. For me this is typically one number if you stay below a certain threshold and then it increases if you go above that limit.<BR><BR>Step 5. Take the number provided by step 3, convert to kilowatt hours if necessary and multiply by the rate in step 4.<BR><BR>Most *typical* PCs take about as much juice as 2-4 traditional 60 watt light bulbs, more if you’re using a CRT monitor and include that in the equation.
#7
-
Add bookmark
-
#7
<BLOCKQUOTE><div>quote:</div><div>Originally posted by eluder:<BR>If you can afford to build a PC that uses 750W, then you won’t care about cost of power as it’ll be a drop in the bucket. </div></BLOCKQUOTE>To support this, I recently built a PC that pulled ~400W at idle and ~600W peak.
It had a 950W PSU with 4 350W modules (they derate the modules in a redundant configuration). It cost the customer $18K, weighed in at ~120 pounds, and the cooling fans put out enough air to be felt 6′ away. Unless I’m VERY mistaken, you probably won’t be drawing this much power on a continuous basis.
#8
-
Add bookmark
-
#8
<BLOCKQUOTE><div>quote:</div><div>Unless I’m VERY mistaken, you probably won’t be drawing this much power on a continuous basis.
</div></BLOCKQUOTE>I’d be very mistaken as well then.<BR><BR>As part of normal production here we build systems far beyond what most enthusiasts would ever build, and most of those don’t crack even 700W sustained at peak loads with 17 or 25 HDDs cranking away at 100% writes and all four processor cores plus all four RAID processors pegged…
#9
-
Add bookmark
-
#9
Quad-Core C2D + X1950XTX CrossFire = 400W From The Wall<BR><BR>Since the PSU used it about 80% efficient, that’s about 320W being delivered by the supply.
..<BR><BR>You can draw your own conclusions as to the power supply industries trend towards 1000W supplies.<BR><BR>The best way to minimize costs is to get a quality supply <I>of a reasonable capacity</I>, with high efficiency, and with Active Power Factor Correction.
#10
-
Add bookmark
-
#10
That’s the thing— a dual-video card setup with a quad-core CPU is not quite the absolute highest power draw system you could propose, but it’s damn close.
It’s still far short of 750w. You could easily provision a ~500w PSU for that type of setup for ~$100.00 and still get a high quality unit.<BR><BR>An AMD 4×4 system is known for being tremendously power-inefficient—the current king of wasting electricity. You could set up a system like that with Quad-SLI or a pair of 8800GTSes— I’m not sure which would draw more power, but both setups draw a lot. That would be at or near the maximum power draw possible for a desktop system, and I doubt it’d break 750w.<BR><BR>People point to drives as being a factor for larger power supplies. You can add drives and add power demands in a linear fashion. They’re obviously a consideration, but… other than at spin-up, they’re very low power consumption. Filling up a case with a hard drive in every slot possible would be a power draw, but that would be dwarfed by a single high-end video card.
- Status
-
Not open for further replies.
How Much Electricity and Power a 750 Watt Space Heater Uses? – BiTraib
by Paul E
Small spaces such as you find in an RV or a small room under 150 sq. ft can require a low-power electric space heater to keep you warm during the cold winter nights if there is supplementary heating.
If you have decided on the 750 watt space heater and plan to leave it running throughout the night then you might be concerned about its impact on your energy bill.
Also, it helps to know its current draw so that you can size the wiring and circuit breaker well enough to avoid tripping the breaker and damaging the outlets
So, in this post, I cover the energy consumption of the 750 watt heater, how much it is likely to cost you, share tips to help reduce the bill and provide guidance on recommended wiring and circuit breaker information so that you can use it reliably and safely.
Does a 750 Watt Space Heater Use a Lot of Electricity?
The 750 watt space heater is one of the smaller space heaters and compared to the larger wattage heaters, does not consume a lot of electricity.
The actual consumption (kWh) depends on how the heater is used, i.e. how many hours of usage, power levels used, and how well it is maintained.
For example, leaving the heater on throughout the night though necessary increases the electricity consumption substantially than if it is on for a few hours.
How Much Electricity the 750 Watt Space Heater Consumes?
The energy consumption (kWh) depends on the number of hours of usage per day and whether it is set to a high or low mode.
Assuming that the heater is used for 8 hours a day when set to high, its energy consumption over 24 hours is 6,000 watt-hours or 6 kWh.
Over 30 days, its monthly energy consumption is 180 kWh.
How Much It Costs you to Run the 750 watt Heater?
Assuming the heater is used for 8 hours per day when set to maximum temperature with an energy cost of 12 cents per kWh.
The daily cost of running the heater is only USD 0.72 from (750 watts x 8 hours) /1000 x USD 0.12. Assuming maximum power for 8 hours a day at 12 cents per kWh.
The cost of running the heater per hour is only USD 0.09 from (750 watts x 1 hour) /1000 x USD 0.12. Assuming maximum power for 8 hours a day at 12 cents per kWh.
The monthly cost of operating the heater is USD 21.6 from (750 watts x 8 hours x 30 days) /1000 x USD 0.12. Assuming maximum power for 8 hours a day at 12 cents per kWh.
Tips to Reduce the Electricity Costs of Running a 750 Watt Space Heater
If you have an energy source with limited capacity such as a backup battery or simply want to keep your energy costs low then you can:
- Use the eco mode or a lower energy setting mode on the space heater if you do not need maximum power from the heater.
When set to low, the space heater uses a fraction of the energy, usually 50% or 375 watts.
Some space heaters have a thermostat that cycles on and off power when the temperature falls below the set temperature which helps to regulate and further conserve energy.
- Maintain the heater operating efficiency by regularly cleaning the space heater to remove dust and other materials that can reduce the heating efficincy of the space heater.
Several manufacturers recommend vacuuming the heater to remove dust or the use of compressed air to blow out any dust.
Alternatively, you can also use a blower. Check the owner manual for your heater on how to safely clean the heater.
How Much Power a 750 Watt Space Heater Uses?
A 750 watt space heater uses as much as 750 watts of energy when set to the maximum or high setting.
If set to the low or eco setting ( for the models that have the feature), the space heater can use as low as 375 watts.
How Many Amps a 750 Watt Space Heater Draws
To supply the 750 watts of power, the space heater draws approximately 6 amps of current at 110/120V.
If the heater is rated 208, 240V, the current draw will be lower at about 3 amps.
At the eco setting of 375 watts, the current draw of the 750 watts, 110/120V heater reduces to about 3 amps.
Which Electrical Circuit to Plug the Heater ?
You can plug the heater in a regular 13 or 15 amp outlet or receptacle connected to a shared or dedicated 15 or 20 amp breaker provided the maximum current rating of the breaker and wiring is not exceeded.
Should the circuit breaker trip, consider running the heater in eco mode or running the heater alone on the electrical circuit.
Should You Plug the Space Heater Into an Extension Cord?
No, you should plug the heater into a 110V outlet or receptacle instead of an extension cord.
The heater draws a sizeable current that might be higher than the current handling capacity of extension causing damage possibly a fire.
Only plug the heater into an extension cord if you are sure that it is able to supply the rated current draw of the heater.
What Size of Wire to Use with a 750 watt Space Heater?
Use 14 AWG wire pr larger (size) with the 750 watts, 110V/120V, or 240V space heater. This size of wire is sufficient to handle the 6 amps drawn at 110V/120V or 3 amps at 240V by the heater.
Final word
The 750 watt space heater can have monthly electricity consumption of about USD 21.6 depending on hours of usage and power level set to.
The estimated peak power draw of the electric heater is 750 W.
To reduce energy consumption, change the usage mode to eco mode. If set to eco mode, the power draw can be as low as 50% or 375 watts.
You can also improve its heating efficiency and save energy by regularly cleaning the heater to remove dust.
how is it calculated and how to choose a vacuum cleaner by suction power?
A vacuum cleaner is one of the most necessary household appliances that everyone has to buy at least once in their life. Many housewives dream of a stylish modern vacuum cleaner.
So that it does not disappoint you when cleaning, you should focus not only on price and design, but also on technical characteristics, the main of which is power.
Do not be greedy and chase records: a powerful vacuum cleaner purchased without looking can surprise you unpleasantly when the electricity bills come. Let’s together choose the best option that will ensure cleanliness in the house and save electricity.
Vacuum cleaner power and cleaning efficiency
When choosing a vacuum cleaner, you need to pay attention to two parameters of power: useful, with which air is sucked in, and consumed from the mains.
Important to know!
For marketing purposes, the power consumption is written on the body of the vacuum cleaner, since this parameter always looks more solid. In fact, a vacuum cleaner can consume a large amount of electricity and at the same time weakly suck in air. For suction power, please refer to the enclosed instructions or data sheet of the vacuum cleaner.
You can also use the information on the websites of manufacturers or sellers.
Power consumption is usually between 1500-2500 W, useful or suction power is 350-500 W. For standard cleaning of a small apartment, a vacuum cleaner with a suction power of 350-400 watts is usually enough. Allergy sufferers, for whom the quality of cleaning is especially important, are recommended vacuum cleaners with maximum useful power. But be prepared in this case for the rapid wear of your carpet.
The concept of useful power includes two indicators:
- maximum net power. Achieved in the first seconds after turning on the vacuum cleaner if the dust container is empty;
- average effective useful power. Characterizes the operation of the vacuum cleaner during the entire cleaning. The air suction power decreases as the dust box becomes full and dirty. Therefore, the average effective power is usually 30% lower than the maximum.
A modern vacuum cleaner is a complex device and its suction power is affected by a number of factors:
- engine. This is the most important part. Engine efficiency is typically 25–35%. That is, with a power consumption of 1500 W, you can count on an engine power of 375–525 W. This power is theoretically enough for any type of cleaning, but do not forget about other nuances that reduce useful power;
- vacuum cleaner type. Dust bag or container — depending on what the vacuum cleaners are equipped with, with the same power consumption, they can show different suction power;
- types and number of filters. The more complex the filters and the more of them, the lower the suction power. A vacuum cleaner with two large-pored filters will show a better visible result than a vacuum cleaner with five fine-pored ones, which have more air resistance. But he will cope only with coarse dust, and will remain powerless in front of plant pollen, microorganisms and other allergens.
What can not be said about modern vacuum cleaners with a cyclone filtration system: they not only make life easier for allergy sufferers, but also show continuously high suction power due to airflow acceleration technology; - vacuum cleaner build quality. With the same engine power, a well-assembled vacuum cleaner with carefully matched parts shows a higher useful power.
How do you determine the power you need?
So, we figured out what the power of a vacuum cleaner is and what it depends on. Now let’s see how to «use» it:
- 350 W — suction power sufficient for dry cleaning of linoleum, parquet, tiles and other smooth surfaces. If you don’t have carpets and don’t plan on cleaning upholstered furniture, an inexpensive, low-power vacuum cleaner will do;
- 400 W — suction power to successfully clean carpet and cope with large amounts of dust and wool if there are animals in the house;
- 450 W or more — Suction power sufficient to clean carpets, long pile carpets, upholstered furniture.
The most convenient option is a vacuum cleaner with a suction power regulator that allows you to clean any surface with optimal energy consumption. The regulator can be mechanical or digital. Vacuum cleaners with digital adjustment are significantly more expensive.
Please note!
Upright vacuum cleaners that look good in interiors and are battery powered usually have low suction power. For a large apartment where family and pets live, upright vacuum cleaners can only be recommended for daily cleaning. The same can be said about robotic vacuum cleaners. The exception is the latest developments of leading manufacturers, where the quality of cleaning is affected not only by suction power, but also by nozzles, the design of the vacuum cleaner and filters.
How to choose a vacuum cleaner by suction power? Summing up
It is quite easy to choose a vacuum cleaner in terms of suction power: the larger the area and the more difficult the cleaning, the greater the required value.
If financial possibilities allow, all other things being equal, you should always choose the most powerful vacuum cleaner with a regulator: it will definitely not let you down. In addition, no manufacturer will design a device with obviously cheap assembly and accessories if it has a powerful high-quality engine.
Let’s imagine that you have decided on the type of cleaning — dry or wet — and the useful power of the vacuum cleaner you need for your tasks. You walk into a store, lined up with beautiful vacuum cleaners, and the only thing you see is the wattage labeled on the case.
First of all, choose models from well-known world manufacturers. They are equipped with reliable engines with high efficiency and are distinguished by build quality. If we conditionally take the engine efficiency equal to 35% and the required useful power of 450 W, then it turns out that the power consumption will be 1285 W. This is electricity, which is required only for the operation of an unloaded engine! To determine the power consumption you need, you should multiply this figure by approximately 1.
5 or 2 — it depends on how dust filtering issues are resolved, what other technologies are used in this particular model. Thus, if your requirements for cleaning the room are quite high and you need the maximum useful power of a vacuum cleaner, focus on modern models with a power consumption of 2000 W or more.
Convector NOIROT Spot E-3 750
Series Spot E-3 is represented by convection-type electric heaters with power from 0.5 kW to 2 kW, equipped with high-precision electronic automation. The presence of accurate and reliable automation allows you to maintain a comfortable microclimate with minimal power consumption (25% less compared to oil coolers).
Heaters of the Spot E-3 series are easily and quickly mounted on the wall or installed on special legs (optional), and connected to the mains with a plug.
The design features of the Spot E-3 series convectors eliminate the occurrence of extraneous noise during heating and cooling of electric heaters and guarantee complete safety in operation (the absence of sharp corners, surface heating is not higher than 60 ° C).
Electronic automation withstands voltage fluctuations from 150 V to 242 V, which is most relevant with frequent «jumps» in voltage. In case of possible interruptions in the power supply, the heaters have an auto-restart function that restores the operation of the device in the previous mode.
The heaters are based on a one-piece cast monometallic heating element RX-Silence PLUS®, , which provides fast heating to the required temperature, absolutely silent operation, the highest efficiency (over 90%) and preservation of natural air humidity in the heated room.
Heating element RX-Silence PLUS® is vertically transparent and has a diffuser shape, which prevents dust from settling and burning on the surface of the element and contributes to the active movement of air flow.
Built-in control unit for electric heaters includes
electronic thermostat and mode switch:
- «comfort mode»
- «stop mode»
- «programming»
The official guarantee is supported throughout the territory of the Russian Federation.
Delivery in Moscow.
Delivery is carried out on the day of order or the next day.
Pickup (free of charge).
We invite you to visit our showroom of Noirot convectors, see and choose the convector model you are interested in. Before leaving, be sure to check the availability of the model you are interested in at the pickup point.
Delivery to any city of the Russian Federation
Our official online store delivers to all cities of the Russian Federation.
For some models, delivery to your city is FREE*. Delivery charges apply for certain models.
* when buying with a promotional price or a discount — check for delivery, free shipping may not apply to certain regions.
Send an order from the site and get detailed information about delivery in your city.
You can also get detailed information from the sales managers by phone.
Use the order form on the website or send a request to [email protected]
Please note!
Forwarders, drivers, couriers delivering goods to the buyer, only check the appearance of the equipment for mechanical damage. The duties of these employees do not include instruction in the operation of the equipment.
Delivery of «legs» and accessories WITHOUT buying a heater is charged.
Delivery is carried out on weekdays and in some cases on weekends.
| Power | |
| Heating power | 0.75 kW |
| Area | |
| Area, up to | 8-10 m² |
| Dimensions | |
| Dimensions (wxhxd) | 340x440x80 mm |
| Power input | |
| Power input | 0.
|