The size of your water heater is an important consideration when purchasing a new unit. The amount of hot water your home uses may increase or decrease depending on factors such as how many people live there, the age and condition of insulation in your building, etc. But there are some standards to follow when determining what size water heater you need for your home. Let’s start with the basics:
Importance Of Choosing The Right Size Of Hot Water Heater
When your tank water heater is too large for your home, you have plenty of hot water but problems in other areas. A large water heater wastes energy by heating more hot water than your household requires. When using a tank water heater, energy is wasted by storing more hot water than is used at any given time. Large water heaters use more energy than suitably sized models, resulting in higher utility bills. Similarly, when the tank water heater is too small, there should be more hot water available.
Water Heater Sizing Considerations
A 50-to-60-gallon water heater is ideal for a three-to-four-person family. On the other hand, a 5–7-person household may need a 60–80-gallon water heater. If you live alone with a spouse, a 30-gallon water heater will supply enough hot water for showers, laundry, and dishes. These are approximate measurements for your home.
If anyone in your household prefers to soak in the tub rather than take a quick shower first thing in the morning, you may need to upgrade to a larger-capacity water heater. A typical, smaller bathtub has a capacity of approximately 40 gallons of water and is considered standard. On the other hand, a spacious bathroom tub may have the capacity to hold as much as one hundred forty gallons of water.
How To Size A Water Heater
To properly size your water heater, determine the number of hot water devices you anticipate using at any given time and then add their flow rates. To determine your desired temperature rise, you must subtract the incoming water temperature from the ideal heated water temperature. The water entering your house is already around 10 degrees Celsius. In most cases, the water heater should heat your water to around 49 degrees Celsius. An on-demand heater can typically raise the temperature of the water by 39 degrees at a flow rate of 5 gallons per minute.
Takeaway
Don’t make the mistake of purchasing an oversized or undersized water heater for your home. Request that a licensed plumber evaluate your household’s hot water needs to determine the appropriate size water heater to keep everyone comfortable. The right size water heater ensures that everyone has enough hot water whenever and wherever it is needed.
Call Bueno Plumbing today for an estimate on the new water heater installation. We provide a variety of high-quality equipment in both system types, installed by skilled professionals to ensure the performance and efficiency of your new water heater.