Hot water heaters are an indispensable part of any home. They come in many types, methods, and sizes to accommodate any home, fuel type, or water needs. If your family has low-to-moderate water needs with 3 to 4 people, a 40-gallon tank heater is sufficient for your needs. Because tank-style heaters must keep water warm until it is used, you want to be as close to your family’s needs as possible to avoid spending too much on water heating costs. Water heater costs have increased over the last few years, and with HVAC regulations updating in 2023, costs are expected to increase more between January and April of 2023, with projected percentages rising 12%.
The national average cost range to install a 40-gallon tank water heater is $1,250 to $1,900, with most people paying $1,575 for a 40-gallon gas tank water heater that is a direct replacement for an existing model. This project’s low cost is $770 for a 40-gallon electric tank water heater installed in an open area. The high cost is $4,500 for a 40-gallon solar water heater with a gas backup system on the rooftop and outdoors.
40-gallon water heaters can meet the hot water needs of households with 3 to 4 members and low-to-moderate needs. This water heater size can be electric, powered by gas/propane, or solar with a backup system of electric or gas/propane. Solar water heaters have the highest costs for purchase and installation but the highest efficiency ratings. Gas and propane 1 heaters have moderate-to-high upfront costs with a range of efficiency, while electric units are generally the least expensive to purchase but cost the most to run. These factors, along with the location, whether it is ready for installation, and tank insulation, impact the final project cost. The costs below are for differing qualities of 40-gallon tank water heaters fully installed.
40-Gallon Water Heater Costs
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Basic | Standard | Best Quality | |
40-Gallon Water Heater Cost (Material Only) | $500 - $750 | $850 - $1,300 | $1,400 - $2,500 |
40-Gallon Water Heater Installation Cost (Labor Only) | $270 - $350 | $400 - $600 | $600 - $2,000 |
Total Costs | $770 - $1,100 | $1,250 - $1,900 | $2,000 - $4,500 |
40-Gallon Water Heater Cost per Gallon | $19.25 - $27.50 | $31.25 - $47.50 | $50.00 - $113 |
Electric water heaters are the least expensive to purchase and install, but they are usually more costly to run long-term. Newer electric hybrid water heaters are more costly upfront but efficient to run with some of the lowest costs. Gas or propane water heaters are more costly to purchase, set up, and install but have lower operating costs than traditional electric water heaters. Gas and propane heaters also come in varying efficiencies, meaning they can save more long-term. Solar water heaters with electric or gas backup are the most costly to purchase and install but have the lowest monthly costs. The cost to replace a 40-gallon electric water heater in an easily-accessible area is the least costly. The average cost to replace a 40-gallon gas water heater or new hybrid electric heaters in direct-replacement situations are the most moderate. High-efficiency models, installed in areas that need modifications to help them fit, and solar heaters cost the most.
High-efficiency 40-gallon water heaters can be found with an Energy Star label. To be considered high efficiency or receive an Energy Star rating, an electric water heater needs a uniform energy factor (UEF) of more than 2.2, while a gas-fired unit needs a minimum UEF of 0.64 until April 2023, at which time this increases to a minimum of 0.86. Solar water heaters with electric backup have a minimum high-efficiency rating of 3, while solar water heaters with gas backup have a minimum high-efficiency rating of 1.8. These units have the highest costs, so expect high-efficiency units to range from $850 to $2,500.
If your water needs are low to moderate, then yes. You should upgrade if you have a performance shower or high water needs.
Most heaters last 10 to 15 years, but some last longer.
This depends on several factors. The average shower with only one head uses 2 gallons of water per minute. You likely mix some cold water into your hot water, so you can assume a single 40-minute shower, two 20-minute showers, or four 10-minute showers before you run out of hot water.
The average installation time ranges from 2 to 4 hours. However, this range could increase if you need to modify the surrounding area.
Yes, this can help lower your energy usage and the cost of your water heating each month. The tankless unit must be installed inside the walls of your home, and you may need two, depending on the size.
This depends on how hot you want to run the water, but you can expect roughly 40 minutes of hot water from your 40-gallon water heater, broken up into as many showers as you like.
Cost to install a 40-gallon water heater varies greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.