The Best 20 gal water heater of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 20 gal water heater of 2022. Check our ranking below.
2,157 Reviews Scanned
Rank No. #1
GE Appliances 18 Gallon Versatile Plug and Play Electric Water Heater with Adjustable Thermostat, Easily Installs Where You Want It, 120 Volt
- WHOLE HOME FLEXIBILITY - Can provide hot water to a single hookup, or to a small house, condo, or apartment
- EASY INSTALLATION - Installs in minutes with existing plumbing. Uses standard 3/4-in NPT compatible water connections and connects into any 120-Volt supply
- COMPACT DESIGN - Ideal in limited spaces like kitchens, bathrooms, laundry rooms, cabins, RVs, garages, sheds, etc
- HOT WATER BOOSTER - Works as a standalone unit, or inline with another water heater to boost long pipe runs or washing machines
- ADJUSTABLE THERMOSTAT - Easily change temperatures to your desired settings
Rank No. #2
GE Appliances 18 Gallon Versatile Electric Water Heater with Adjustable Thermostat & Drain Valve, Side Port Lowboy, Point of Use, 240 Volt
- LOWBOY - Make the most of tight spaces with a water heater that fits where height is a concern
- HOUSEHOLD SIZE - Provide hot water for a whole family of 1 to 2 persons
- EASY SET UP - Replace your old water heater quickly and easily using standard water and electrical connections
- QUICK RECOVERY - Two powerful 5500W heating elements ensure available hot water quickly after each use
- INLET TUBE - Replenishes water from the bottom of the tank to maximize hot water delivery
Rank No. #3
thermomate Tank Water Heater Electric, 18 Gallon Small Point of Use Hot Water Heater for Washing & Shower, 120Volt 1500W Compact Residential Water Heater, Adjustable Thermostat, UL Listed
- 【18 Gallons point of use】 storage water heater provides ample hot water for sink washing, dishwasher, washing machine or 20 - 25mins shower. Factory setted temperature to 125°F. It can be adjusted from 90°F to 150°F through built-in thermostat
- 【25.5-inch low profile】 compact small water heater (120 Volt Hard Wired), independent installation or as booster in-line with a large hot water source, ideal for kitchen & bathroom sink, RV & boat, vacation cabin & camper, garage & barn, shop & salon
- 【INCOLOY-800 heating element】 better corrosion resistance performance and more efficient than copper at higher temperature, thus has a longer life span and energy saving
- 【Corrosion Resistant Tank】 Inner tank was coated with porcelain enamel glass, which has better performance in resistant to high temperature and rust, reducing leaking chance, thus ensuring a long life service and low maintenance
- 【UL Listed safety】 including ASME, ANSI and CSA (AGA) approved T&P relief valve, independent drain port, high temperature limit protection and adjustable thermostat
Rank No. #4
Electric Hot 20 gallon Water Heater Storage, RV TR Endless Trailer Indoor Waterproof Shower Water Heater Compact Point-of-Use, Bathroom Shower (13gallon) plug in 120v
- 💧 Point of Use Design The GEESEN 50L/15 GALLON Electric Water Heater is designed to provide immediate hot water at various points of use, making it ideal for homes, offices, and small commercial settings.
- 👌 Adjustable Thermostat Equipped with a precise adjustable thermostat, this water heater allows you to set and maintain the perfect water temperature for your needs, ensuring comfort and energy efficiency.
- 🔌Standard 120-volt electrical connection , this water heater is easy to install without the need for specialized electrical work, fitting seamlessly into most residential and light commercial environments.
- 🏠 Compact and Durable Its compact design saves space, making it suitable for installation in tight spots. The stainless steel construction ensures durability and resistance to corrosion, providing a long-lasting hot water solution
- 🚿 Drain Valve Includes a built-in drain valve for easy maintenance and hassle-free water drainage. This feature simplifies the process of cleaning and maintaining the unit, prolonging its operational life.
Rank No. #6
Ariston Electric Water Heater – Compact Point of Use Tank for RV, Camper, Plug-in Heating Solution for Under Sink, Versatile Electric Tank for Bathroom, Shower – 19 Gallon, 120V
- Compact and Versatile Design: The Ariston 19 Gallon Electric Mini Tank Water Heater features a compact design for installation in bathrooms, garages, and more, providing a flexible hot water option.
- Swift Heating for Various Uses: This point-of-use electric water heater provides immediate stored water for on-demand use. It can function as a stand-alone solution or boost an existing water heater, provides efficient hot water delivery for residential use.
- Versatile Applications: Intact for a range of applications, including in-law suites, pool houses, offices, and stores. It’s also advised for RVs and campers, making it a reliable option for providing heated water wherever it’s needed.
- Versatile and Durability: This unit includes a screw-in heating element for direct heat transfer to water, ensuring versatility. It provides both performance and enduring reliability.
- Why Choose Ariston: Ariston is a globally trusted brand known for innovative heating solutions and high-quality materials. By investing in Ariston products, you ensure exceptional performance, energy efficiency, and a commitment to sustainability in every aspect of your heating system.
Rank No. #7
MIZUDO Electric Water Heater, 18 Gallon Point of Use Tank Hot Water Heater, 120V 1500W, Easy to Use with Adjustable Thermostat, UL Listed
- 𝐋𝐚𝐫𝐠𝐞 𝐂𝐚𝐩𝐚𝐜𝐢𝐭𝐲 𝐃𝐞𝐬𝐢𝐠𝐧: The 18-gallon sufficient capacity is enough to meet your family's hot water needs. Unlike other ordinary tank water heaters, MIZUDO electric tank water heater is equipped with advanced fast heating technology, allowing you to enjoy the convenience of hot water in about 60 minutes, which can effectively save your waiting time for hot water and meet your different hot water needs
- 𝐒𝐩𝐚𝐜𝐞 𝐒𝐚𝐯𝐢𝐧𝐠: Household electric water heaters are ideal for providing storage hot water or boosting applications. The 18 Gallons water heater can be installed independently or as a booster in series with a large hot water source, perfect for kitchens and bathrooms, RVs and boats, holiday cabins and campers, garages and barns, shops and salons, to provide hot water point to point
- 𝐇𝐢𝐠𝐡-𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐇𝐞𝐚𝐭𝐢𝐧𝐠 𝐄𝐥𝐞𝐦𝐞𝐧𝐭: Crafted from Incoloy 800, this heating element surpasses stainless steel in high-temperature resistance and oxidation resistance, ensuring long-term stable operation of the water heater with minimal maintenance and replacement needs. Its superior thermal conductivity boosts heating efficiency to 98%, significantly reducing energy consumption
- 𝐄𝐧𝐞𝐫𝐠𝐲 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐚𝐧𝐝 𝐋𝐨𝐰 𝐂𝐨𝐧𝐬𝐮𝐦𝐩𝐭𝐢𝐨𝐧: Our on-demand 18 gallons water heater is well-insulated to provide a steady supply of hot water for your family's needs. Its adjustable thermostat (90°F–150°F) ensures minimal heat loss and energy-saving performance, providing reliable warmth day or night without interruption
- 𝐋𝐨𝐧𝐠 𝐒𝐞𝐫𝐯𝐢𝐜𝐞 𝐋𝐢𝐟𝐞: The main material adopts a smooth enamel coating, which has excellent durability and service life, and is durable. At the same time, the built-in easily replaceable anode rod provides long-lasting and effective corrosion protection, maintains efficient performance and extends service life. You can enjoy stable and reliable hot water for many years, ensuring peace of mind and convenience in daily life
SaleRank No. #8
BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
- CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches
- LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
- INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
- FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
- EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
Rank No. #9
VEVOR Electric Water Heater, 18 Gallon Tank Instant Hot Water Heater, 1.6Kw Tankless Water Heater w/LED Display,Knob Control, IPX4 Waterproof Side Connection On Demand Heaters for Shower, Bath
- 18-Gallon Water Capacity: With a 18-gallon/70L storage capacity, this heater provides ample hot water for family needs, including dishwashing and laundry. Its 1600W high-power heating reduces wait time for hot water at the faucet.
- Immersion Heating Element: The extended immersion heating element ensures continuous hot water delivery for 24 hours. It heats water up to 167℉ / 75℃ and features an LED heating display and rotary temperature control, adjustable from 30℃ to 75℃ / 86℉ to 167℉.
- Enamel Coating: The enamel glass coating enhances safety, protecting against burns, leaks, and other hazards. Combined with additional safety features, it ensures worry-free use.
- 20mm Foam Insulation Layer: The heater's design includes a corrosion-resistant inner tank, HFO foam insulation, and a high-pressure metal outer shell, providing lasting heat retention for up to 24 hours.
- Versatile Use: The large capacity is ideal for both residential and commercial settings. Suitable for family kitchens, bathrooms, airports, shopping malls, and more, it meets diverse hot water needs.
Rank No. #10
GE Appliances 30 Gallon Electric Water Heater with Adjustable Thermostat, Short, 240 Volt
- REAL CAPACITY - Get the most hot showers from the only electric water heater that holds a true 30 gallons of water (Compared to 30 gallon electric steel tank water heaters per DOE rated gallon capacity)
- MAXIMUM PERFORMANCE - Best in class unit that delivers 53 gallons of hot water in the first hour of use (Measured through DOE First Hour Rating)
- HOUSEHOLD SIZE - Provide hot water for the whole family of 1 to 3 persons
- EASY SET UP - Replace your old water heater quickly and easily using standard water and electrical connections
- QUICK RECOVERY - Two powerful, 5500W heating elements ensure available hot water quickly after each use
Last update on 2025-04-07 / Affiliate links / Images from Amazon Product Advertising API
How Do You Buy The Best 20 gal water heater?
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This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:
- Brand Value: Every brand of 20 gal water heater has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an 20 gal water heater?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your 20 gal water heater.
- Customer Ratings: Number ratings grade 20 gal water heater objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 20 gal water heater.
- Product Quality: You don’t always get what you pay for with an 20 gal water heater, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an 20 gal water heater is should be an indication of how long it will work out for you.
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