On a water bill, "usage" tells you how much water you have used and are being billed for.
yes they will raise your bill if you charge at home ,the model and amount of use will determine how much. but still much cheaper than gasoline
to tell us how much we have to pay for the usage of our telephone.
For me, in my 1475 sf home with a gas furnace and water heater in California, my gas bill varies depending on the time of year. And I'm going to guess it would vary depending on the state you are in. We don't use the heat near as much as those in the snowy regions. In the summer it goes down to $14.00 to $16.00. In Feb it was at an all-time high at $78.00. For the past year the average was $31.64.
based on my own experience about £1.50-£2.50/day if left on the tub will maintain operating temperature by turning itself on about 2/3 times per day for about 30 a time it will depend on the size of the tub and capacity of water and insulation and wattage of heater, but a friend also has one and it costs them about £2 per day.
Your term "hydro" is another term for kilowatt hours. So to answer your question a 4800 watt heater on for an hour would consume 4.8 kilowatt/hours. To take it further if you knew what you pay for a kilowatt hour in your area, multiply it by 4.8 and you could see how much it costs you to operate the heater. An example if you pay .11 cents a kilowatt hour, the price would be .528 or 53 cents an hour.
A 50 watt heater is major over kill for a 3 gallon tank, a 10 watt heater is more than enough for a tank that size. You will nuke your aquarium very quickly the first time the 50 watt heater sticks on, with a 10 watt heater if it sticks on the aquarium temp will only raise a degree or two.
Yes, watching too much TV can raise your electricity bill. The more hours your TV is on, the more electricity it uses. To save on energy costs, consider watching less TV or using energy-efficient settings on your TV.
By viewing you electric bill online you can find information containing how much usage, your monthly rate, when you due date is, how much is owed and even sometimes you can find out that you qualify for a cheaper rate due to your financial issues.
First, your hot water heater may represent only a small fraction of your utility bill. You would have to meter the heater power consumption before and after adding solar assist. Also, the assist only happens when the sun is shining so it you use most hot water during non-daylight hours you wouldn't experience much savings.
That depends (a) on how many occupants there are, and (b) whether your usage will be by annual fixed bill, or water meter. --------------------------------------------------------------------- With a meter the bill is based on how much water is actually used and the used water that must be removed, not the size of the house.
how much an hour to run a oil filled heater