A 28-gallon lowboy electric water heater is a practical option when a short tank must fit beneath a low ceiling or in another height-restricted space. The Bradford White 28-gallon model is the closest match to that capacity, while GE’s 26-gallon lowboy is a smaller alternative for one or two people. The 40-gallon GE suits households needing more hot-water capacity; the 18-gallon GE and portable immersion heater address different, limited-use needs.
| Product | Best for | Key detail |
|---|---|---|
| Bradford White 28-Gallon Lowboy | Buyers seeking a 28-gallon lowboy | 208V, single-phase, 6 kW |
| GE 26-Gallon Lowboy | One or two people | Adjustable thermostat and drain valve |
| GE 40-Gallon Lowboy | Households needing more stored hot water | Two 5,500-watt heating elements |
| GE 18-Gallon Plug-and-Play | Compact, 120V applications | Designed for a single hookup or small home |
| 2000W Immersion Heater | Portable, small-volume water heating | Heats water in a container; not a tank replacement |
Bradford White 28-Gallon Residential Electric Lowboy
Best for: Buyers who specifically need a 28-gallon, residential electric lowboy. This is the most direct match in the product list for the requested capacity and form factor.
The listed specifications identify a 208-volt, single-phase electric unit rated at 6 kilowatts. The product information also lists a weight of 108 pounds and a test pressure of 300 psi. It specifies a six-year limited warranty for both the tank and component parts; review the seller and manufacturer documentation for the applicable terms.
Why it was selected: Its stated 28-gallon capacity and lowboy design align closely with a search for a 28-gallon lowboy electric water heater.
Limitation: The listed voltage is 208V, so confirm that the home’s electrical supply and installation requirements match before choosing it. The supplied information does not state its dimensions or hot-water delivery rating.
GE Appliances 26-Gallon Versatile Lowboy
Best for: One- or two-person households that need a compact lowboy tank and can work with slightly less than 28 gallons of listed capacity.
GE describes this 26-gallon model as a lowboy for spaces where height is a concern. Its listed features include an adjustable thermostat, a drain valve, and standard water and electrical connections intended to make replacement straightforward. The product is described as a 240-volt water heater.
Why it was selected: It is a close capacity alternative to a 28-gallon unit and has a stated household-size range of one to two people. The adjustable thermostat and drain valve are useful details to compare when evaluating installation and operation.
Limitation: Its capacity is 26 gallons, not 28 gallons. Confirm the dimensions, connection layout, and electrical requirements against the existing installation rather than assuming they match another lowboy.
GE GE40L08BSM 40-Gallon Lowboy
Best for: Buyers with a height-restricted installation who prefer more tank capacity than a 28-gallon model provides. GE lists this heater for households of two to four people.
The 40-gallon unit has two 5,500-watt heating elements and an inlet tube and side port, according to the product description. GE lists a first-hour delivery of 63 gallons, measured using the DOE First Hour Rating. Those details make it a larger-capacity alternative for households with greater hot-water needs.
Why it was selected: It retains the lowboy format while offering substantially more stated storage capacity than the 26- and 28-gallon options. It is better for buyers prioritizing household hot-water supply over matching an exact 28-gallon capacity.
Limitation: This is a 40-gallon model, so it may not suit a buyer who needs a specific 28-gallon tank size or has limited floor space. Verify the physical measurements and electrical requirements before purchase.
GE Appliances 18-Gallon Plug-and-Play Heater
Best for: Buyers who need a compact heater for a single hookup or a small space such as a kitchen, bathroom, laundry room, cabin, garage, or shed.
This GE model holds 18 gallons and is designed for a 120-volt supply. The listed features include standard 3/4-inch NPT-compatible water connections and installation using existing plumbing. The description says it can supply a single hookup or a small home, condo, or apartment.
Why it was selected: It offers a compact electric-tank option for buyers whose installation cannot accommodate a larger lowboy or whose hot-water demand is limited. Its stated 120-volt connection distinguishes it from the 208- and 240-volt products in this comparison.
Limitation: It is not a 28-gallon lowboy model. Its 18-gallon capacity may be inadequate for households with higher simultaneous hot-water demand, so compare the required use and installation arrangement carefully.
2000W Portable Immersion Water Heater
Best for: People who need to warm a small amount of water in a container, such as for temporary use while traveling or camping. This is a portable alternative, not a household storage-tank water heater.
The product is listed as a 2,000-watt immersion heater for 110–125V AC. Its features include a 304 stainless-steel protective guard and an LCD thermometer. The listing says it can heat up to five gallons of water, with longer heating time needed for a larger volume.
Why it was selected: It offers a different solution for small, temporary hot-water needs when a fixed tank is not the intended use. Its portability and stated container-based operation distinguish it from the lowboy models above.
Limitation: It does not store or supply hot water like a plumbed electric tank. The listed instructions require full immersion before connecting power, and the product is intended for water only; follow its safety directions carefully.
Buying Guide: Choosing a Lowboy Electric Water Heater
Should you choose 28 gallons, 26 gallons, or 40 gallons?
Start with the capacity required by the household and the existing installation. The Bradford White is the only listed product with a stated 28-gallon capacity. The GE 26-gallon lowboy is a nearby alternative that the listing describes for one or two people. The 40-gallon GE is intended for households of two to four people and lists a 63-gallon first-hour rating.
Tank capacity alone does not describe how much hot water a household can use in a busy hour. Consider the number of occupants, typical bathing and laundry routines, and whether appliances use hot water at the same time. Compare stated first-hour delivery figures when available; the supplied product information gives this figure for the 40-gallon GE, but not for the other tank models.
Will the heater fit in the available space?
“Lowboy” indicates a design intended for places where height is a concern, but it does not guarantee that a particular tank will fit. Measure the available height, width, and depth, including space needed for pipes, wiring, access, and maintenance. Check the manufacturer’s complete product specifications for dimensions and port locations before ordering.
Also compare the existing plumbing layout with the replacement model. The listed 40-gallon GE includes an inlet tube and side port, while the 26-gallon GE is described as a top-port lowboy. Port arrangement can affect whether a replacement suits the installation, so verify rather than relying on capacity or product names alone.
What electrical requirements should you check?
Confirm the heater’s voltage and electrical requirements before purchase. The listed models differ: the Bradford White is specified as 208V and single-phase; the 26-gallon GE is listed as 240V; the 18-gallon GE is listed as 120V. The 40-gallon GE has two 5,500-watt elements, but the supplied description does not state its voltage.
Do not assume a heater is compatible with the home’s wiring just because it is electric. Review the manufacturer’s installation information and consult a qualified professional when needed. Match the unit to the available circuit and applicable installation requirements.
How should you compare installation and maintenance features?
Look at the connections and features that matter for the specific replacement. The 26-gallon GE lists standard water and electrical connections, an adjustable thermostat, and a drain valve. The 18-gallon GE lists 3/4-inch NPT-compatible water connections and connection to a 120-volt supply. These descriptions can help narrow options, but they do not replace checking the full installation instructions.
A drain valve is relevant when draining the tank is part of planned maintenance, while an adjustable thermostat provides a way to set the unit’s temperature. Verify the exact installation steps, clearances, and maintenance recommendations in the documentation for the model you select.
When is a portable immersion heater a better choice?
A portable immersion heater may fit a temporary, small-volume need, such as warming water in a container. It is not a substitute for a plumbed storage tank that supplies a home’s fixtures. The listed portable model is rated at 2,000 watts and is described for heating up to five gallons; its use requires following the supplied immersion and electrical safety instructions.
For a permanent household hot-water system, compare the tank models instead. Choose a portable heater only when its container-based use and limited volume match the task.
What should you verify before ordering?
- Capacity and expected household hot-water demand.
- Available height, width, depth, and service access.
- Voltage, electrical supply, and installation requirements.
- Water inlet, outlet, and port locations.
- Manufacturer specifications, installation instructions, and stated warranty terms.
- Whether you need a permanent tank or only a portable small-volume heater.
Frequently Asked Questions
Which listed product is exactly 28 gallons?
The Bradford White Residential Electric Lowboy is the only listed model with a stated capacity of 28 gallons. Its product information specifies 208V, single-phase operation and a 6 kW rating.
Is a 26-gallon water heater close enough to replace a 28-gallon model?
It may be an option when a slightly smaller capacity suits the household, but it is not an exact capacity match. Check hot-water demand, physical dimensions, electrical requirements, and plumbing connections before selecting it.
What does lowboy mean for a water heater?
A lowboy is a water-heater form factor intended for installations where height is limited. The term does not confirm that a specific model will fit; compare its actual dimensions and connection layout with the available space.
Is the 40-gallon GE a better choice than a 28-gallon model?
It may be better for buyers who need more stored hot water and have room for a larger-capacity tank. It is not the better match when the installation requires a 28-gallon capacity or the larger unit will not fit.
Can a portable immersion heater replace a lowboy tank?
No. The listed immersion heater warms water in a container and is intended for small-volume, temporary use. It does not function as a plumbed household storage tank.