Best Natural Gas Gas Water Heaters in 2026

CONTINOUS FLOW – Hot showers will never be interrupted again. Enjoy continuous, on-demand hot water with an unlimited supply, when you want it without wasting any energy when not needed

SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation

SILENT OPERATION – One electronic switch will activate the hot water heater and it’s noise free while in use. Digital temperature display is easy to read, while the interior solid copper heating system does all the power work

CONTINUOUS FLOW – Advanced Flow Control patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity. Hot showers will never be interrupted again

SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation and the ability to electronically control water flow. Savings monitor even shows how much you save on energy costs

EASY OPERATION – Electronic switch activates the hot water heater and it’s noise free while in use. Has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work

𝐂𝐨𝐦𝐩𝐚𝐜𝐭, 𝐋𝐢𝐠𝐡𝐭 𝐖𝐞𝐢𝐠𝐡𝐭 𝐏𝐨𝐫𝐭𝐚𝐛𝐥𝐞 𝐃𝐞𝐬𝐢𝐠𝐧 - 12.8 (L)*6.1(W)*21.65(H) inches, weight-18 lbs. Compact and portable design perfect for barns, cabins, outdoor instant hot shower and road trips

𝐄𝐚𝐬𝐲 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 & 𝐔𝐬𝐞 - Simply connect the inlet and outlet pipes and gas regulator that come with this portable water heater, insert 2 D-cell batteries, then you are ready to use. Low water pressure start of 3.6 PSI allows you to enjoy 2.64 gallons of water in just a few minutes

𝐏𝐨𝐰𝐞𝐫 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 & 𝐄𝐧𝐞𝐫𝐠𝐲 𝐒𝐚𝐯𝐢𝐧𝐠 - Maximum power output 68,000btu/hour with 11.5% energy saving technology, you will get instant endless hot water easily wherever you are. The propane water heater exchanger and main burner are designed with advanced combustion technology to decrease gas consumption and burning noise

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.

【Portable & Easy To Use】Camplux BW211 portable model has a compact and lightweight design for easy handling. Runs on a standard 20 lb. liquid propane tank and with an electronic ignition powered by 2 D-cell batteries, it’s easy to use

【Versatile Applications】 The lowest water pressure at beginning for the water heater is 3.6 PSI. This hot water powered by 2 size D batteries. No more chilly outdoor shower for off-grid and rural areas while you're camping, hiking, hunting, hanging poolside. You can also washing your pets or horses, cleaning your vehicle, or even in your tiny home, or remote cabins

【 Flow Rate & Temperature Range】 Maximum power output 55,000BTU/Hr and a temperature range of 18-95 ℉ max. Water flow rate at 1.1 GPM Min and up to 2.11 GPM Max. The water heater with Eco /Full switch, you can control the temperature easily

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 3-4 outlet points, which can satisfy whole family. UEF over 0.81, the high energy conversion rate can effectively reduce energy loss.

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

𝟐.𝟔𝟒 𝐆𝐏𝐌 𝐎𝐧 𝐃𝐞𝐦𝐚𝐧𝐝 𝐈𝐧𝐬𝐭𝐚𝐧𝐭 𝐖𝐚𝐭𝐞𝐫 - Camplux propane water heater is rated at 2.64 GPM and has a maximum power output of 68,000 BTU/hour with 11.5% energy-saving technology, saving up to 50% on water heating costs

𝐄𝐧𝐝𝐥𝐞𝐬𝐬 𝐇𝐨𝐭 𝐒𝐡𝐨𝐰𝐞𝐫 - The tankless propane water heater comes with a 4.33" diameter stainless steel rain cap. It only takes you a few minutes to get 2.64 gallons per minute of instant hot water.

𝟑.𝟔 𝐏𝐒𝐈 𝐋𝐨𝐰 𝐖𝐚𝐭𝐞𝐫 𝐏𝐫𝐞𝐬𝐬𝐮𝐫𝐞 𝐒𝐭𝐚𝐫𝐭 - This camping water heater lights when water pressure is between 3.6-110 PSI. 3.6 PSI low water pressure is perfect for camping, off-grid living and remote cabins

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.

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.

🏝️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.

【Outdoor installation to save space】The product is installed outdoors and does not occupy the living space. The bottom built-in forced DC fan eliminates the influence of external wind. So as to ensure the stability of combustion, achieve safety, energy saving and no pollution. We recommend that all installations are carried out in accordance with local building and plumbing codes by licensed professionals.

【Endless water supply without preheating】The heat exchanger quickly heats the water to a maximum of 140°F, which is ready for use without waiting for hot water. It can run at approximately 6.3 GPM for 40 minutes, enough to produce almost 240 gallons of hot water. Make a multi-point water supply for the whole house to meet your family's water needs.

【Precise temperature control and stable temperature】Equipped with a wire controller cord length of 164ft, allowing you to control the water temperature indoors. The burner can be burnt in sections to meet the water temperature demand in the four seasons. 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.

【Outdoor installation to save space】The product is installed outdoors and does not occupy the living space. The bottom built-in forced DC fan eliminates the influence of external wind. So as to ensure the stability of combustion, achieve safety, energy saving and no pollution. We recommend that all installations are carried out in accordance with local building and plumbing codes by licensed professionals.

【Endless water supply without preheating】The heat exchanger quickly heats the water to a maximum of 140°F, which is ready for use without waiting for hot water. It can run at approximately 5.1 GPM for 40 minutes, enough to produce almost 200 gallons of hot water. Make a multi-point water supply for the whole house to meet your family's water needs.

【Precise temperature control and stable temperature】Equipped with a wire controller cord length of 164ft, allowing you to control the water temperature indoors. The burner can be burnt in sections to meet the water temperature demand in the four seasons. 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.

CSA Certified

LED Touch Screen Computerized Safety

Flow activation

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

💦【Approved Safety】 Safety Standard approved HOPERAN Tankless Water Heater, safe as per Canadian and US Standard. More than 6 protection methods; for example: overheating protection, antifreeze protection, flameout protection, etc.. Upgrade: Install a stainless steel fire baffle below the combustion device, which can effectively prevent sparks from damaging the pipeline below, to ensure the safety of the propane camping shower

💦【On Demand Hot Water】Fully adjustable heat and water flow. Maximum power output 41,000BTU/Hr, easily get instant and endless hot water wherever you are. Propane water heater don't need to preheat before use. As soon as you turn on the faucet, the water will flow out at the temperature you want. Low water pressure starts, requiring only 2.9 PSI of water pressure. Produce 1.6 gal of on-demand hot water per minute. ❤Note: The water heater can only be started when the water source is connected

💦【High Efficiency & Energy Saving】: With automatic ignition and flameout mode. The shower head is open, the propane water heater is auto-ignition. The shower head closed, the propane water heater auto-flameout. And has two combustion modes in summer and winter, which can effectively reduce consumption. Both the heat exchanger and the main burner use the most advanced energy-saving combustion technology, which reduces gas consumption and noise while ensuring a continuous supply of hot water

【Universal Tank Heaters Substitutes】 This RV water heater has a wide range of applications. It’s a good replacement for Suburban & Atwood's 4/6 gallons tank water heaters. The included door fits the desired 16.1 x 16.1 inch size

【Easy Install & Operate】The tankless rv water heater with a pressure relief valve built into the unit, you don't have to buy and install it separately. And it also comes with a 15*15 " door and 1 pc 6.6 feet intelligent remote controller. You can adjust the hot water temperature to get the temperature you want by simply tapping the remote control

【No More Waiting】RV Tankless hot water heaters are better than tanked water heaters. You don't need to waste 20-30 minutes waiting for hot water in the middle of the shower, so you can enjoy hot water at all times. It uses propane for heating, so there is no need to worry about running out of power in your caravan

【Compact & Lightweight】The tankless water heater propane has been specially designed to be compact and lightweight (14 lbs) so it can be taken as a companion to camping, RV living, cabins, farms and anywhere else you want to go. You can enjoy comfortable hot water shower like at home when you are outside with GREATBEAR propane water heater.

【On Demand Hot Water】With a heat output of 37000BTU/h, you can expect a decent flow of hot water from the MT158 portable propane water heater. Best of all, you can get instant and endless fresh hot water from it at any time. No preheating required. It ensures you get a relaxed and perfect ending after a long day of outdoor activities.

【Simple Knob Design】The gas knob and water knob are designed to be simple. The water temperature will rise if you turn one of the knobs clockwise or decrease if one of the knobs to be turned counterclockwise. Our GREATBEAR propane tankless water heater aims at continuous innovation and improvement and believe that it is the best way to be user-friendly.

【Replaces all RV water heaters】It has a 12.8 x 12.8 inches opening and can replace Suburban & Atwood's water heaters and other tankless water heaters. It is low noise and has good vibration resistance, which is made for caravans

【Our upgrades】Deep fire row design can improve heating sales and save gas. Built-in filters in the pipe can effectively filter particles and sand. Built-in mixing tank, no overheating of water due to brief opening and closing

【Long time bath】Deep fire row design can improve heating efficiency. It can produce up to Max 3.9 GMP hot water and has 65,000 BTU power. It can bring you hot water all the time when there is enough gas and water. There is no need to wait for the water to heat up and take a quick bath like with a tank water heater

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: 22 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

【Outdoor installation to save space】The product is installed outdoors and does not occupy the living space. The bottom built-in forced DC fan eliminates the influence of external wind. So as to ensure the stability of combustion, achieve safety, energy saving and no pollution. We recommend that all installations are carried out in accordance with local building and plumbing codes by licensed professionals.

【Endless water supply without preheating】The heat exchanger quickly heats the water to a maximum of 140°F, which is ready for use without waiting for hot water. It can run at approximately 5.1 GPM for 40 minutes, enough to produce almost 200 gallons of hot water. Make a multi-point water supply for the whole house to meet your family's water needs.

【Precise temperature control and stable temperature】Equipped with a wire controller cord length of 164ft, allowing you to control the water temperature indoors. The burner can be burnt in sections to meet the water temperature demand in the four seasons. 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.

More Advanced RV Tankless Water Heater — Tankless water heaters are better than tank water heaters for continuous showering of multiple people. There is no need to waste 20- 30 minutes waiting for hot water in the middle of the shower, so you can enjoy hot water at all times.

Can Replace Any Brands' RV Water Heater — This unit can replace Suburban and Atwood's 6&10 gallons tank water heaters, as well as Girard and Furrion’s tankless water heaters, it has a wide range of applications.

Water Temp is Precisely Controlled — Temperature ranges from 95°F-123°F. This RV tankless water heater with temperature fluctuation eliminates technology that can eliminate the rising temperature to avoid scalding injuries. Staged combustion technology controls the amount of flame in summer, prevents the water from getting too hot, and saves the limited propane gas available for caravan travel.

Water heating solution for a point of use application

Eco-friendly tankelss water heater: Save energy using less gas during the warm months with the Marey Tankless Liquid Propane Gas Water Heater; Color: White

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