With so many Best 40 Gallon Propane Water Heater brands on the market – from prominent names like FOGATTI,Bradford White,A. O. Smith,Rinnai,EcoSmart,MAREY to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.
We extensively tested and evaluated dozens of top-rated Best 40 Gallon Propane Water Heater across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best 40 Gallon Propane Water Heater to consider. Our top recommendation is FOGATTI Best 40 Gallon Propane Water Heater for its uncompromising quality and performance.
Below you’ll discover more of our favorite Best 40 Gallon Propane Water Heater picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best 40 Gallon Propane Water Heater you’ll truly love.

Top 10 Best 40 Gallon Propane Water Heater
We researched and compared the top products in the Best 40 Gallon Propane Water Heater category to provide you with these recommendations.
1. Propane Gas Tankless Water Heater, FOGATTI Indoor 6.3 GPM, 145,000 BTU White Instant Hot Water

- We recommend that all installations of units must be done by the local building and plumbing codes of the installation location and installation be done by a licensed professional.
- The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
- 145,000 BTU high heating capacity and maximum 6.3 GPM. It is suitable for 2-3 outlet points, which can satisfy whole family. UEF over 0.82, the high energy conversion rate can effectively reduce energy loss.
- Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced technology, superior safety and durability.
- Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind. Compact design for easy installation.
- FOGATTI provides free replacement within 30 days, and 5 years warranty on the heat exchanger and 2 years warranty on other parts. The above-mentioned labor costs are extra from 31 days.
2. Bradford White 40 Gallon Natural Gas Water Heater #RG240T6N

- Bradford White ICON System
- Advanced ScreenLok Technology Flame Arrestor Design
- Resettable Thermal Switch
- Maintenance-Fre
- Factory-Installed Hydrojet Total Performance System
3. A.O. Smith ENS-40 ProMax Short Electric Water Heater, 40 gal

- Permaglas glass coating protects steel tank from corrosion and maximizes tank life
- Dynaclean diffuser dip tube helps reduce lime and sediment buildup while maximizing hot water output; made from long-lasting PEX cross-linked polymer
- CoreGard anode rode aluminum anode with stainless steel core protects tank against corrosion longer than ordinary steel anodes
- Durable, tamper-resistant brass drain valve
- Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)
4. Rinnai V65eP Non-Condensing Propane Tankless Water Heater, Outdoor Installation, Up to 6.5 GPM

- Original Design: Tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE160eP model
- Never Run Out of Hot Water with this Compact Propane Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 6.5 GPM (5 fixtures at once)
- Smart, Durable Design: Enhanced scale detection helps prevent serious, long-term damage to unit; Includes 15-, 5-, and 1-year residential guarantee for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)
- Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician
- Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region
5. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating

- Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
- Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
- Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
- EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
6. MAREY GA24CSALP 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use Liquid

- CSA Certified
- LED Touch Screen Computerized Safety
- Flow activation
- Oxygen free copper heat exchanger
- Stainless Steel Venting Exhaust
- Anti-Freeze Protection
- UL Listed
- DOE
7. Rheem RTG-70XLP-1 Tankless Water Heater, Grey, Grey

- Continuous Hot Water never run out of hot water, even with back-to-back showers
- Tankless Gas Water Heaters are cost saving and energy efficient
- Reduces Energy Consumption - Automatically adjusts the amount of energy required to heat the water you need
- Easy, Convenient Control Easily adjust water temperature ranging from 85F140F
- For use outdoor with freeze protection up to -30 degrees
8. Eccotemp i12-LP Water Heater, 4 GPM, Black

- Whole home indoor, gas powered tankless water heater, rated at 4 GPM that activates only on demand and no pilot light needed, reducing energy consumption
- Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls
- Features fully automatic temperature controls with an energy saving mode and child lock technology
- Safe electronic ignition system; Plugs into standard 110v electrical outlet with UL-listed cord
- Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation
9. Propane Gas Tankless Water Heater, FOGATTI Outdoor 8.1 GPM, 180,000 BTU White Instant Hot Water

- We recommend that all installations of units must be done by the local building and plumbing codes of the installation location and installation be done by a licensed professional.
- The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
- 180,000 BTU high heating capacity and maximum 8.1 GPM. It is suitable for 3-5 outlet points, which can satisfy whole family. UEF over 0.82, the high energy conversion rate can effectively reduce energy loss.
- Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced technology, superior safety and durability.
- Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind. Compact design for easy installation.
- FOGATTI provides free replacement within 30 days, and 5 years warranty on the heat exchanger and 2 years warranty on other parts. The above-mentioned labor costs extra are from 31 days.
10. Tankless Water Heater, GASLAND Outdoors BE158B 1.58GPM 6L Portable Gas Water Heater, Instant Propane

- ./ - Maximum power output 41,000BTU/Hr.The temperature raise is 109.4 (43) at its highest point and 55.4 (13) is at its lowest point of 1.58 GPM. Also, 1.58 gallons of hot water can be produced per minute at the flow rate of 1.58 GPM. Low water pressure start up, just need 3.6 PSI of water pressure to start.
- -- - Runs on a standard 20 lb. liquid propane tank and is equipped with an electronic ignition powered by two D-cell batteries. Can be used in a variety of scenarios: while you're camping, RVing, hunting, hanging poolside, washing your pets or horses, cleaning your vehicle, or even in your tiny home, greenhouse, or cabin house.
- - With CSA certification, safe as per Canadian and US Standard. Features over-heating protection, low water flow protection, dry combustion protection, anti-freezing protection, high water pressure protection and flame failure device.
- - Bright power, the temperature readout as to not get the water to hot or cold.
- - - We provide a 1-year Warranty against manufacture defects and lifetime customer support.
- ' - GASLAND BE158B Tankless Water Heater, CSA certified gas regulator and hose,5 feet On/Off Switch Shower Head, mounting hardware, garden hose adapter, Manual.
- - To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. Always check gas leakage before operation.
- - Designed for portable outdoor use. It is splash-proof and can manage a little drizzle, however, prolonged exposure to rain/water will damage the internal components. We recommend using and storing your water heater in a dry place. For the winter, please drain out the wate by disconnecting the drain plug and store it in the warm and dry area.
Peter
Related Posts
- Best Iphone Photo Backup Device
- Best Universal Ac Adapter
- Best Summer Sausage In Wisconsin
- Best Exterior Clear Polyurethane
- Best Fishing Storage
- Best Paraffin Wax For Candles
- Best Shaft For M1 Driver 2017
- Best 40 Inch 4k Monitor
- Best Tightline Brush
- Best Caralluma Fimbriata
- Best Blackhead Mask Peel-off
- Best Budget Long Gun Safe
- Best Iron For Cricut Vinyl
- Best Root Lifter For Fine Hair 2020
- Best Denture Cushions
- Best Tanning Lotion For Bronzing
- Best Outdoor Rug For Sand
- Best Siliconate Concrete Sealer
- Best Pest Reject
- Best Canister Set