Best Propane Liquid Water Heaters in 2025

Powerful 46,000 BTU outdoor gas heater provides heat up to a 9 foot radius; ideal for commercial cafes and restaurants or home patios

Constructed with aluminum, plastic, and steel with a durable powder-coated finish

One-touch ignition button for easy start up; requires 20lb liquid propane gas tank (not included); chain included to secure tank

Lightweight, Compact & Portable Design: The 10 pounds lightweight portable water heater's folding handle keeps it out of the way and enables easy setup outside.

Flow Rate & Temperature Specification: The temperature raise is 114.8℉ (46℃) at its highest point and 46.4℉ (8℃) is at its lowest point of 1.32 GPM. Also, 1.32 gallons of hot water can be produced per minute at the flow rate of 1.32 GPM.

Versatile Applications: The lowest water pressure at beginning for the water heater is 3.0 PSI. For off-grid and rural areas, this hot water generator powered by two size D batteries is ideal. No more chilly outdoor shower anymore.

Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended

Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary

Optimal Water Pressure: High-performance up to 5.3 GPM hot water flow rate for a powerful, constant stream

CSA Safety Standard -CSA safety standard approved portable tankless water heater,flame failure device, anti-freezing protection, over heating protection to ensure the family safety. Automatically decrease water pressure between 3.0-110 PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. The water heater will shut off automatically when high water temperature protection over 176 °F.

Lightweight Portable Design-Compact size weights 10 lbs with portable handle for easily carry. Hang it using the mounting bracket on the top/back of the gas water heater. It only takes you a 15 minutes to install the propane water heater.

Instant Hot Water- Maximum power output 28,000btu/hour, you can get 1.32 gallons instant endless hot water easily wherever you are. No need to preheat before operating the tankless water heater. As soon as you turn on the tap, the water flows with your desired temperature.

𝟭.𝟱𝟴𝗚𝗣𝗠/𝟲𝗟 𝗣𝗿𝗼𝗽𝗮𝗻𝗲 𝗪𝗮𝘁𝗲𝗿 𝗛𝗲𝗮𝘁𝗲𝗿 - 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.

𝗚𝗼𝗼𝗱 𝗳𝗼𝗿 𝗢𝗳𝗳-𝘁𝗵𝗲-𝗚𝗿𝗶𝗱 - 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.

𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗦𝗮𝘁𝗲𝗳𝘆 𝗣𝗿𝗼𝘁𝗲𝗰𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺 - 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.

4.22𝗚𝗣𝗠/16𝗟 𝗣𝗿𝗼𝗽𝗮𝗻𝗲 𝗪𝗮𝘁𝗲𝗿 𝗛𝗲𝗮𝘁𝗲𝗿 - Maximum power output 11,0000BTU/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 4.22 GPM. Low water pressure start up, just need 4.0 PSI of water pressure to start.

𝗚𝗼𝗼𝗱 𝗳𝗼𝗿 𝗢𝗳𝗳-𝘁𝗵𝗲-𝗚𝗿𝗶𝗱 - 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.

𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗦𝗮𝘁𝗲𝗳𝘆 𝗣𝗿𝗼𝘁𝗲𝗰𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺 - 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.

𝟭.𝟱𝟴𝗚𝗣𝗠/𝟲𝗟 𝗣𝗿𝗼𝗽𝗮𝗻𝗲 𝗪𝗮𝘁𝗲𝗿 𝗛𝗲𝗮𝘁𝗲𝗿 - 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.

𝗚𝗼𝗼𝗱 𝗳𝗼𝗿 𝗢𝗳𝗳-𝘁𝗵𝗲-𝗚𝗿𝗶𝗱 - 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.

𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗦𝗮𝘁𝗲𝗳𝘆 𝗣𝗿𝗼𝘁𝗲𝗰𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺 - 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.

IMPRESSIVE 46,000 BTU’S: With Golden Flame’s XL-Series propane heater, you can enjoy being outside even in the coolest of months. The wide reflector hood, crafted from aluminum, is combined with stainless steel burners to generate heat up to a 15-foot radius. While in use, the heater releases water vapor to help prevent dry air. Ideal for backyards, outside screened-in porches (with proper clearances), restaurant outdoor patios, and more.

EASY PRESS, EASY START: Featuring a rapid spark electronic ignition system, one press brings on the heat! While operating on propane gas, this XL-Series heater has an advanced “pilotless” burner system. The variable heat control knob allows for trouble-free adjustment from low to high heat and anywhere in-between.

SAFETY FIRST: This heater comes equipped with an automatic tilt sensor that shuts of the burner if it starts to tip. The base includes a reservoir for adding sand. Once filled, the sand adds 25lbs. of weight providing extra stability during breezy conditions. A safety chain secures your 20lb. liquid propane gas tank (not included).

Easy To Install -It only takes you 5 minutes to set up and it comes with all necessary accesories.To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.

4.22 Instant Hot Water-It only takes you a few minutes to get 4.22 gallons per minute of instant hot water. The camplux portable water heater lights when water pressure between 4.0-110 PSI, low water pressure is perfect for campings and remote cabins.

6-in-1 Protection Ensure Your Safety-Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. The anti-freezing drain plug discharges the residual water to avoid freezing in cold areas for long-time maintenance. Gas supply automatically shut off when high water temperature protection over 167 °F.

𝟭.𝟱0𝗚𝗣𝗠/𝟲𝗟 𝗣𝗿𝗼𝗽𝗮𝗻𝗲 𝗪𝗮𝘁𝗲𝗿 𝗛𝗲𝗮𝘁𝗲𝗿 - 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.

𝗚𝗼𝗼𝗱 𝗳𝗼𝗿 𝗢𝗳𝗳-𝘁𝗵𝗲-𝗚𝗿𝗶𝗱 - 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.

𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗦𝗮𝘁𝗲𝗳𝘆 𝗣𝗿𝗼𝘁𝗲𝗰𝘁𝗶𝗼𝗻 𝗦𝘆𝘀𝘁𝗲𝗺 - 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.

Lightweight, easy to carry, and compact, making it great for camping, off-grid use, washing your pets and outdoor showers.

Runs on a standard 20 lb. Liquid Propane tank and is equipped with an electronic ignition. Powered by 2 “D” cell batteries, making it ideal for on-the-go.

Features a safety shut off that is activated when the unit runs longer than 20  minutes or is tilted more than 45 degrees in either direction.

Minimum working water pressure: 0.025MPa; Max.0.8MPa; Automatic electric ignition powered by 2 qualified D batteries

Hot Water Output (T=25 degree):12 L/min, Gas Type: LPG; Suitable gas pressure: 2800Pa (0.4 psi )

Over heat Protection: Over 75 °C will automatically turn off .

【1500W Powerful & Safety Protection】The 1500W pool heater for above ground can heat up five gallons of water in minutes.The thermostat control of pool heater will turn on or off circularly and automatically to maintain the water temperature when water temperature reaches a certain level.

【Rust Proof 304 Stainless-steel Guard】This above ground pool heater power cord is made of PVC skin which is not easy to leak. The quality is safe and stable. The bottom drainage design adopts high-temperature and wear-resistant material for drainage, which is not easy to melt and prevent accidental damage. The immersion heater adopts a stainless steel protective shell which has a solid structure and high bending strength. Below the protective hole, the heat is released faster.

【Smaller Size & Portable Use】The pool water heater is small in size and easy to carry during travel, heating 5 Gallons of Water in Minutes Bucket Heater (How to use: Please make sure the immersion heater is fully immersed in water, and then connect the 120v/110v power supply. Equipped with a digital LCD thermometer, after heating for a period of time, put the probe into the water to test the water temperature.)

Lightweight, easy to carry, and compact, makes using it for camping, hunting, in your Tiny Home, RV’s, Poolside, Washing Pets, Equestrian, Cleaning Vehicles, Greenhouses or anywhere else that you need instant reliable endless hot water perfect

Runs on a standard 20 lb. liquid propane tank and is equipped with an electronic ignition. Powered by 2 "D" cell batteries, making it ideal for on-the-go

CSA certified for use in the US and Canada. This tankless water heater meets and exceeds all safety and efficiency requirements according to the DOE

Gas Type: LPG Liquid Petroleum Gas (PROPANE), Capacity: 18L/min (4.8Gal), 25 degrees warm water producing rate.

Working temperature:-8-45℃, Thermal input: 36KW, Thermal efficiency: ≥80.8%. Temperature rise: 25℃.

Automatic ignition system, Flame failure protection device, Water & gas combination unit ,Fitted with over heating and pressure safeguard, Suitable for both summer and winter.

Capacity: 18L/min (4.8Gal), SIZE: 13.4"(L) x5"(W) x25.6"(H), 25 degrees warm water producing rate; Cover Material: Cold Rolled Sheet; Gas Type: LPG Liquid Petroleum Gas (PROPANE); Dimension : Picture 2, SIZE: 13.4"(L) x5"(W) x25.6"(H)

Thermal input: 36KW; Working temperature:-8-45℃; Temperature rise: 25℃; Thermal efficiency: ≥80.8%. Torque Range: 3-3.5 N.m

Minimum working water pressure: 0.025MPa; Gas pressure: 2800Pa; Vent Type:4.3" Flue Duct;Gas pipe: G 1/2"; Water Inlet: G1/2''; Water Outlet: G1/2''

【Smaller size and better performance】It is only 1/4 the size of a 50 gallon tank water heater, yet it produces approximately 4.0 GPM of hot water through 90,000 BTU for both bathroom and kitchen hot water demand. The highly integrated components also provide greater safety from water pressure surges without the need to install an expansion tank.

【Fast and endless supply of hot water】The heat exchanger quickly heats the water to a maximum of 140℉ in a short time, and the hot water is quickly piped through to the shower and tap. No need to wait for the water temperature to heat up slowly like a tank water heater. After that it continues to operate at approximately 4.0 GPM for 40 minutes, which is enough time to produce almost 160 gallons of hot water.

【Stable and comfortable temperature】Benefiting from the calculation and control of the heating power 1000/s by the chip, the temperature difference of the water can be precisely controlled within ±2°F.

【 𝐁𝐄𝐄𝐒 𝐇𝐀𝐕𝐄 𝐊𝐍𝐄𝐄𝐒 】: The Onsen 5L portable water heater turns cool water into instant hot water on demand. Ideal for heating summer water temperatures of 65°F and colder. Perfect for camping, RV, and outdoor use.

【 𝐕𝐄𝐑𝐒𝐀𝐓𝐈𝐋𝐄 𝐀𝐏𝐏𝐋𝐈𝐂𝐀𝐓𝐈𝐎𝐍𝐒 】: Our portable hot water heater features a dual-ignition system with two options to choose from. Use two "D" cell batteries or connect to a 12V power source with included 12v alligator clips.

【 𝐅𝐔𝐄𝐋𝐋𝐄𝐃 𝐁𝐘 𝐏𝐑𝐎𝐏𝐀𝐍𝐄 】: Up to 16 hours of instant hot water! Onsen propane water heater utilizes a standard 20-pound BBQ liquid propane tank. This portable water heater can heat 5 liters of water per minute at 32,000 BTUs/hr ensuring you hours of reliable hot water usage.

ECO-FRIENDLY WATER HEATER: Save energy using less gas during the warm months with the Marey Tankless Liquid Propane Gas Water Heater; Color: White; Weight: 10.14 pounds

BATTERY POWERED: Tankless water heater starts with pulse ignition powered by (2) D batteries (not included); No cords necessary

AUTOMATIC SHUT-OFF: Multiple safety sensors, such as auto cut-off, automatic ignition, anti-dry combustion, over-pressure, overheating, flameout protection, and twin solenoid valves

Whole home indoor, gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver.

For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.

Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.

𝟏.𝟓𝟖 𝐆𝐏𝐌 𝐎𝐧-𝐃𝐞𝐦𝐚𝐧𝐝 𝐈𝐧𝐬𝐭𝐚𝐧𝐭 𝐖𝐚𝐭𝐞𝐫 - Camplux propane water heater is rated at 1.58 GPM and has a maximum power output of 41,000 BTU/hour with 11.5% energy-saving technology, saving up to 50% on water heating costs

𝐋𝐢𝐠𝐡𝐭𝐰𝐞𝐢𝐠𝐡𝐭, 𝐞𝐚𝐬𝐲 𝐭𝐨 𝐜𝐚𝐫𝐫𝐲 - This portable hot water heater weights 14 lbs, makes using it for camping, Tiny Home, RV, Poolside, Washing Pets, Equestrian, Cleaning Vehicles, Greenhouses or anywhere else that you need instant reliable endless hot water for shower

𝐄𝐧𝐣𝐨𝐲 𝐒𝐡𝐨𝐰𝐞𝐫 𝐄𝐯𝐞𝐧 𝐎𝐮𝐭𝐝𝐨𝐨𝐫𝐬 - Runs on a standard 20 lbs liquid propane tank, Camplux tankless water heater features an electronic ignition powered by 2 D-type batteries(not included in accessories), and comes with a 3.54'' diameter rain cap protected from the weather, making it ideal for on-the-go

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 0.81, the high energy conversion rate can effectively reduce energy loss.

Stable Hot Water Flow - There is Stable Hot Water Flow When You Take Shower for Tankless Water Heater Propane, Enjoy Happy Shower Time.

CSA Certified Gas Connector, No Leaking Gas - This Propane Water Heater Tankless with CSA Certified Gas Quick Connector, Approved in USA and Canada. Installation is safety, Quickly and Convenient, No Leaking Gas, No Fire.

Sturdy and Durable - Stainless Steel Shower Head, Hot and Cold Hose; 0.2mm(0.07inch) Panel, 100% Copper Valve, to Keep Propane Water Heater Tankless in Long-life and Quality.

【Super Quality Product 】 : This tankless water heater, to make sure no gas leaks risk when connection ,Featuring overheating and flameout ,and anti-freezing protection to ensure the family safety.the gas supply will shut off automatically under unexpectedly flame out， or high water temperature over 167 °F.Anti-freezing apparatus draining the stock water to avoid damage of freezing under cold areas.which has a very long service life, good durability and corrosion resistance.

【Energy Saving】 :This outdoor water heater adopt compact and light weight structure design with with advanced combustion technology to decrease gas consumption and burning noise.Maximum power output 41,000BTU/Hr,you will get instant endless hot water easily wherever you are.no need to preheat ,making it more efficient and energy saving.

【Easy to Install】:Equipped with BSP pipe fittings and all necessary accesories , There are three interface ports under propane water heater. The left one is the Intake port. ​the middle one is the shower port,and the right one is the water inlet, which is very convenient for customers to install.The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.

🏝️Product Parameters: Applicable Water Pressure Range: 3.0-145 PSI; Maximum Power Output: 41,000btu/Hr; Water Output Per Minute:1.6GPM/6L; Item Dimensions LxWxH: 11.42x4.9x14.57 inches; Weight: 13.3 pounds. Efficient and energy-saving, lightweight and convenient.

🏝️Excellent Performance:【Instant hot water】: Instant and continuous supply of hot water whenever you need it.【High efficiency and energy saving】: It has two combustion modes in summer and winter, and both the heat exchanger and the main burner adopt the most advanced energy-saving combustion technology, which can reduce gas consumption and noise while ensuring the continuous supply of hot water.

🏝️High Safety Security: Our propane water heater have multiple safety protection settings【Overheat Protection】: When the water temperature exceeds 167℉, the gas supply is automatically shut off.【Anti-freeze Protection】: The anti-freeze drain plug can drain the residual water and avoid freezing when the temperature is low or when it is not used for a long time.

Brand New AQUAH outdoor open flue liquid propane gas tankless water heater

Automatic electrical pulse ignition with no standing pilot, operated by 2 D Batteries;

85% thermal efficiency, 12,000 Watt / 40,900 Btu/h thermal input, ultra low startup water pressure;

【Premiun Water Heater】-Tankless Water Heater with CSA Approved Regulator, with more safety protection such as flame failure device, anti-freezing protection,over heating protection,Just need 3.6PSI of water pressure,4.21 gallons of hot water can be output per minute. The maximum temperature raise is 167 °F,Applicable only Propane（LPG)

【Efficient & Energey Saving】-The Propane Water Heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.Maximum power output 68000btu/hour, you will get instant endless hot water easily wherever you are.Compact and lightweight structure with 11.5% energy saving technology,so you can get more hot water for less money.

【Portable Design】-Portable Water Heater size and lightweight make the water heater easy to carry and allow you to enjoy an amazing hot shower after a long day of camping, in your RV, or for giving your pet a bath,Size: 21.65x5.9x13.4 inches,Gas Hot Water Heater is Powered by 2 pcs size "D"cell Batteries.

Gas Type: LPG Liquid Petroleum Gas (PROPANE),Capacity: 18L/min (4.8Gal), 25 degrees warm water producing rate. Torque Range: 3-3.5 N.m

Working temperature:--8-45℃,Thermal input: 36KW,Thermal efficiency:≥80%,Vent Type:4.3" Flue Duct,Panel Color: White

Cover Material: Cold Rolled Sheet; Temperature rise: 25℃,Minimum working water pressure: 0.025MPa,Gas pressure: 2800Pa

CSA Certified

LED Touch Screen Computerized Safety

Flow activation

AQUAH propane gas tankless water heater, 4.23 gal (16 L)/min or 254gal/hr

Automatic electrical pulse ignition with no standing pilot, operated by 2 D Batteries or 120V AC

85% thermal efficiency, 32,000 Watt / 109,260 Btu/h thermal input