There are many families that are looking to buy storage water heaters. Deciding on the right unit is difficult as there are many varieties of water heaters available in the market. For more information on the Top Water Heater Reviews, visit our website today.These heaters are tall cylindrical tank that uses various forms of energy to provide you hot water. Some of the common sources of energy include electricity, gas, fuel oil and propane. The water that these units can store depends on the capacity of the heater. Usually the water heaters available in the market can store from 20 gallons up to 140 gallons of water.If you have decided to buy a storage water heater, you must first decide on the energy consumption pattern of the heater. Usually people prefer buying gas or electric storage water heater. You also need to decide on the amount that you are willing to spend to buy the unit. When you decide on advance on the budget it becomes easy to buy a heater.The capacity that you require also plays an important role when you are in the market to buy a heater. Also check for the Energy Guide label on the heater that you plan to buy. These heaters are long-term investment, so buy energy efficient heaters to reduce your energy expenses.You also need to check on the first-hour rating or FHR number when you buy this heater. This number is an indication of the water the heater can supply per hour at peak usage. The minimum FHR required will depend on the number of bathrooms using the water heater and the number of people in your home. It will be prudent on your part to check the Energy Factor before you buy the heater. Energy Factor is an indication of the heater can convert fuel into heat. Looking for the Best Water Heater Reviews? Visit our website for more information.Higher energy factor is an indication that heater uses energy more efficiently. Usually gas storage water heaters have energy factor between 0.5 and 0.7 while electric heaters have a energy factor of 0.75 and 0.95.