Kilowatts measure the rate at which electricity moves through an appliance. More kilowatts mean more electricity, and bigger water heaters will typically use more watts. The average water heater runs at around 1125 watts, though some more powerful water heaters can use up to 4000 watts.
Oversized water heaters consume more energy than properly sized models, so your utility costs are noticeably higher. Plus, bigger models are more expensive upfront, so you've also wasted money on the initial equipment purchase. The same goes for tankless water heaters that are too big – they waste energy and money.
All other things being equal, the smaller the water heater tank, the higher the efficiency rating. Compared to small tanks, large tanks have a greater surface area, which increases heat loss from the tank and decreases the energy efficiency somewhat, as mentioned above.
Energy consumption for 40 and 50 gallon standard water heaters is quite comparable. When you start looking at high recovery heaters and larger tanks you should anticipate a more noticeable increase in energy costs.
A small (50- to 60-gallon) storage tank is usually sufficient for one to two three people. A medium (80-gallon) storage tank works well for three to four people. A large tank is appropriate for four to six people.
A 50 gallon water heater is sufficient for a household of 3 to 4 people. If you have over 5 people in your home, you may require a 75 gallon hot water heater.
The National Appliance Energy Conservation Act of 2015 has significantly restricted the availability of electric water heaters over 55 gallons due to stringent energy efficiency requirements.
If you're looking for a reliable, efficient, and cost-effective water heater, Rheemhas the edge over A.O. Smith. With superior energy efficiency, longer warranties, and better overall performance, Rheem units are designed to meet the needs of modern homeowners.
Forty-gallon water heaters are perfect for homes with one or two people or those living in smaller spaces. On the other hand, 60-gallon water heaters are suited for larger families (of three or more) or if you have a large tub or hot tub.
Choose a Smaller Tank
One option is to choose a tank that's the same size as your current water heater and accept that it will have a lower capacity. If your home only has a few inhabitants who aren't taking multiple showers per day, you may not notice the difference.
Making sure you have a properly sized water heater is very important. If your water heater is too small, your home won't have enough hot water to meet demand, which is an obvious inconvenience, and overloading the unit may cause premature wear and tear. There's no benefit to oversizing a tankless water heater.
It is certainly possible for a water heater to increase your utility bill. Several factors can reduce the efficiency, including a unit that is too small, too old, bad water, or an incorrectly set thermostat can increase the energy bill. Leaks and long pipes can increase your water usage.
When should I consider replacing my water heater? If you suspect your water heater is more than 10 years old—it is time to consider replacing it before you're left with an emergency decision. To determine the age of your water heater, you'll need to identify the Brand Name and Serial Number for your unit.
Think about how much hot water your household typically needs. If you live alone or with one other person, a 40-gallon heater might be plenty. But if you have a larger family or need more hot water for back-to-back showers, dishes, and laundry, a 50-gallon heater can make life a lot easier.
Contrary to energy savings expectations with tankless water heaters, an oversized unit can lead to higher energy bills. When a water heater is oversized, it can lead to inefficiencies and increased energy consumption, impacting your monthly utility costs.
Calculating Water Heater Size
On average, hand washing takes about 2 gallons, running the dishwasher uses 14 gallons, a bath or shower for one person is 20 gallons, and washing a load of laundry is 30 gallons. I you're in a family of four, a 50-gallon water tank should cover all those showers and washings.
The diameter of the 50 gallon unit is only 2” bigger than the 40 gallon model, and the other dimensions and venting requirements are identical. No venting or gas piping revisions are needed going up from one size to the other.
A standard 40-gallon tank will last between 10 and 15 years while larger tanks (50 gallons) have a lifespan of up to 20 years. If you live in an area with hard water, the life expectancy of your water heater may be much shorter than if you lived in an area with soft water.
However, remember that larger water heaters also consume more energy when they run, so make sure you consider your energy usage when choosing a size. The water heater's efficiency will also depend on other factors, such as insulation levels in your home and local climate conditions.
AO Smith, State, and Bradford White are all very dependable brands and are known by professional plumbers for top-quality gas and electric water heaters. Master plumber Eddie Heil put it this way, “AO Smith, State, and Bradford White are all great choices in our experience.
The labor cost to install a water heater through Home Depot ranges between $50 and $150 per hour. On average, you will spend between $100 and $450 because the installation usually takes two to three hours.
The addition of the American, Whirlpool, GSW, and John Wood brands make A.O.
Bradford White water heaters are known for their durability and sturdy construction, providing lasting performance for years. In business since 1881, the company has a long reputation for selling quality products for both residential and commercial use.
The national average cost range to replace an 80-gallon water heater is $2,600 to $5,000, with most people paying around $3,500 for a high-efficiency 80-gallon gas-powered water heater in a direct replacement.
Your area scrap yard can be a great choice for disposing of your old water heater. The process is simple, and you may earn money by selling the components in your water heater to the scrap yard. Most yards accept all types of metal and estimate an approximate value for each.