Power concerns I have an old dehumidifier Kenmore C106256361 ( Kenmore 36) on the front. How much power or KWH will it use per month? Would it be better if I purchased a new one?

The power consumption rating for this model is 1059 kWh per year. You can find this information and more listed on the Energy Guide label which can be found under the "Manuals/Downloads" tab.
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https://www.geappliances.com/appliance/GE-Profile-Performance-26-6-Cu-Ft-Side-By-Side-Refrigerator-with-Dispenser-TFX27PPBWW#qa

Since 2011 the FTC has required that every TV display a yellow and black Energy Guide label estimating how much it costs to run for a year. The label assumes a price for electricity (11 cents/kWh) and a baseline usage (5 hours per day).
The cost is tiny. A typical label can read anywhere from $6 for 32-inch LEDs to $38 for 65-inch plasmas (PDF). Per year. That's from 50 cents to $3.18 per month.

You would need to look on the label inside the refrigerator door that indicates the power consumption for your model. You would then need to compare this with the new model to determine the potential savings in kWh/year. Once you know the potential yearly savings, you would need to multiply this number by your electricity cost (it should be available from your monthly bill, or you can call the utility). Then you can determine how long it will take to recover the expense of purchasing the new refrigerator (minus the rebate).

go here,put the name,model and serial numbers in and it will tell you how old any appliance is.
http://www.appliance411.com/service/date-code.php

Wattage is a term used to express magnitude of power. A common use is to define the electrical power consumption of your home appliances (check the labels). For example, look at the back label of your kitchen toaster. It might read 120 volts, 60 Hz, and 1200 Watts. The 1200 Watts is the power drawn by your toaster when you turn it on. You can get that (Watts) information for any appliance or device that runs on electricity in your house. That's important because that is the unit of measure the electric company uses to charge you in your electricity bill. The electric company bills your electric consumption in kilowatt-hour (KWH). All they are doing is calculating the watts by the thousands (that's the meaning of "kilo") for every hour you have your appliance turned on. The amount 22 cents per kilowatt-hour is close to how much the electricity is costing today. Back to your toaster, 1200 watts is equal to 1.2kilowatts. If you are using your toaster every day for an hour your monthly consumption is 1.2KWH times 30 days equals to 36KWH. That means at 22 cents per kilowatt-hour your toaster is costing you (36KWH times 22cents/KWH) $7.92 on that month. That's the toaster alone, now you can repeat this exercise for every appliance or device using electricity in your home. Start by just doing an inventory of each, do a log with four columns: (1)Name of the appliance, (2)Location, (3)Watts, and (4)Watts/1000 (to get the number in KW). Make a fifth (5) column and call it Hours. Make a sixth (6) column and call it KWH. Then sit down to estimate (think) for how many hours per month each device is turned on. Now multiply each value of column 4 by its corresponding hour number in column 5. Write the results in column 6. Add the results of column 6 and voila! You just have a pretty good estimate of the total KWH consumed in your home in 30 days. Multiply that by $0.22 (or get the actual cost per KWH from your electric service company) and see how close you are to the actual billing. Hope there is no surprises.

There are the science and engineering definitions of the term watt you can research to come to the same conclusion hereto, I just laid a practical perspective.

Average 3.5 KWH per wash - can go up to as high of 5 KWH when you use high temperatures and extra options.

KWH = The Wattage of the Unit multiplied by the length of time used.. IE: a 1000 Watt Unit that is used for One Hour is equal One Kilowatt Hour. (1000Watts = 1KWatt) Wattage is The input Voltage multiplied by the Current draw. IE: 115Volts the unit draws say 4Amps equals, 115x4=660 = 660Watts.

1500w / 1000w = 1.5 kwh. Every hour you run (assuming it is at 100% peak power) you use 1.5 kw. Just multiply that rate by how much it your power company charges per kwh.

Estimating high at 10 cents per kwh it would be $1 for every 10 hours you run the heater, or $2.40 per day, or about $72 per month if you ran it 24/7 for 30 days.

It is FAR cheaper to use these types heaters to heat one small room than an entire apartment or house if you are only in one room the majority of the time.