There is no doubt that a 50 or 40 gallon unit consumes a lot of power since you have to keep it operating 24 hours a day. Instead of having this much energy wasted, you should consider installing a tankless water heater Channelview TX because this type of unit takes up less space and also provides you with heated water only when you need some and doesn't keep heating it when not in use. If you have a gas water heater, you probably keep the frame burning all year round. While you don't have to worry about it, sometimes it might be difficult for you if the fire goes out and you have to turn it on or to light it.