Give me convenience or give me death. When this clich is applied to water in a home, we are talking about water heaters that produce hot water immediately.
I Want Hot Water and I Want It Now!
There are certain types of water heaters that provide hot water only as it is needed. They dont have tanks holding and continually reheating water. This, of course, saves tons of money on utilities because the heating mechanism isnt going on and off all day while you arent even home. These masterful heaters are known as Demand Heaters, an appropriate name in our instant gratification society.
Demand water heaters do the job on the fly. When you turn on the tap for a hot bath, cold water travels into the heater, is instantly heated and then transferred to your tub. They run on either gas or electricity and are all the rage at the moment.
As with anything so righteous as immediate hot water, there are some limitations. Demand heaters can only instantaneously heat and crank out so much water. If two tubs are being filled at the same time, you may have problems. Depending on the system, most of these heaters will kick out between two and five gallons a minute. That...