A 20 amp 240 volt circuit can provide 4800 watts.
4800 watts / 6 watt per foot = 800 feet.
The weight of 1 foot of tape can vary depending on the type and brand of tape used. On average, standard packaging tape weighs about 0.1-0.2 ounces per foot.
about 1 foot
0.0988 per foot
12" or the length of your ruler.
The easiest way to find this out is with a tape measure: 183.5cm.
A foot is a foot, whether on a ruler or a tape measure, an odometer or laser range-finder or any other modern measuring instrument.
No, walgreens does not carry heat tape. You should be able to find some at a hardware store such as Ace Hardware or Lowes. Pricing can vary but you should be able to get some for less than $10.
With heat wrap/ heat tape, there are a few models that have a thermostat built onto the cord that keep the temp above freezing. Then you should wrap an insulation tape around the heat tape.
IF she just bought 50 feet then this would be too short for even one of her 56 foot requirements.
Heat tape is just for keeping the pipes from freezing, it does not heat the water. That's what the hot water heater is for.
It does not appear that there is any special clothing you need to buy to use heat tape. There are accessories for using heat tape, but they are not clothing related. To find out more check out Heat Tape & Accessories - Winter Weather - Ace Hardware www.acehardware.com
Tape conducts heat through a process called conduction. When you touch a piece of tape to a warm surface, the heat is transferred from the surface to the tape through direct physical contact.