No, it is not safe to heat oil with the usual water kettle since oil is highly inflammable.
Yes, because the kettle will melt. but you can get plastic kettles that are safe to boil your water in. so when it shows signs of melting that means you have to replace it
yes.well it depends if ur carefull enough
This sounds like the kettle has mineral deposits in it, which are not harmful. They occur naturally from water, but can be safely removed. There are many products on the market for this, just read the label to be sure it is safe for the enamel finish. But in the meantime it is certainly safe to use the kettle.
Two separate systems. The heat is a closed system and isn't tied to the house water.
Nothing would happend, you might get some small drops of water on the table, but other than that its perfectly safe.
Yes, plastic coffee makers are safe as the plastics employed are designed to withstand the heat of boiling water.
Many people use this water in drinking water. I for one believe it does affect the quality of the water. Your roof has alot of bacteria and that bacteria will transfer to the water. If you boil the water in the kettle it should be fine.
As long as it wasn't heated in like plastics cause that causes cancer
You can freeze water (solid), heat it in a pan (liquid), and watch it evaporate (gas).
Because water is abundant, cheap, have neutral pH level, safe to handle, tasteless and clear
Burn your tongue and throat is about the only issue. Hot faucet water is no different than cold water you heat on the stove or drink in your coffee.
It's "safe" but it's only a temporary solution. Unless you pur enough hot water on there to actually heat the road surface a little it will simply re-freeze once you turn the water off.