This article will provide you with a review of the best gas tankless water heater for cold climates. These heaters are ideal for both indoor and outdoor use, though with different features.
What Is the Best Gas Tankless Water Heater For Cold Climate?
Comparing the Cold Weather Tankless Water Heaters
| Photo | Title | Price | Buy |
|---|---|---|---|
 | Rinnai V Series HE Tankless Hot Water Heater | Check Latest Price | |
 | Rheem RTG-84XLN-1 Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater, Gray | $992.48 | Check Latest Price |
 | Rinnai RU Series Sensei SE+ Tankless Hot Water Heater | $1,537.90 | Check Latest Price |
 | Excel Pro Tankless Gas Water Heater NATURAL GAS 6.6 GPM Whole House | Check Latest Price | |
 | Rinnai RL94IN Tankless Hot Water Heater, 9.8 GPM, Natural Gas, Indoor Installation | Check Latest Price | |
 | Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater | Check Latest Price | |
 | Propane Tankless Water Heater Indoor, Camplux 5.28 GPM Instant Gas Hot Water Heater for Whole House,120v | Check Latest Price | |
 | Noritz NRC66DVNG Indoor Condensing Direct Tankless Hot Water Heater | $1,169.99 | Check Latest Price |
 | Marey Power Gas 10L 2.7 GPM Propane Gas Digital Panel Tankless Water Heater | Check Latest Price | |
 | Eccotemp 45HI-NG Indoor 6.8 GPM Natural Gas Tankless Water Heater, White | $599.00 | Check Latest Price |
Reviews of Best Gas Tankless Water Heater For Cold Climates
1. Rinnai V Series HE Tankless Hot Water Heater
Rinnai Company is one of the leading companies in North America in manufacturing both residential and commercial tankless water heaters. Rinnai V Series HE Tankless Hot Water Heater is one of the best outdoor heaters by Rinnai at an affordable price.
Rinnai V Series Heater is a highly effective tankless water heater capable of providing a maximum of 6.5 GPM hot water flow rate, making use of natural gas and propane. It is made of high-quality material to enhance its working efficiency and durability and comes with a Control-R 2.0 mobile app with preset schedules and timers. This allows you to control the machine from your mobile phone. For instance, you can easily and quickly set the heater into vacation mode no matter where you are.
Rinnai V Series Water Heater is made a design that features an ergonomic design and a powerful system, this makes the system capable of comfortably serving one up to two and a half bathroom house. The design also features a compact system hence space saving making it convenient to be installed in most places in your home.
This is an economic tankless heater as it consumes less energy while maintaining the pre-set water temperature. 120F degrees is the pre-set water temperature but the system can provide up to 140F degrees. The produced water temperature range is 98 to 140F degrees with a heater energy factor of 0.82.
- The system is compatible with all Rinnai digital controllers.
- Fast water heating.
- It is difficult to install.
2. Rheem RTG-84XLN-1 Tankless Water Heater
Rheem RTG-84XLN-1 Tankless Heater is a mid-efficiency gas water heater that uses natural gas as the heating fuel. It consists of a suitable design that provides a continuous hot water supply even in low water demand conditions.
The heater features a low flow activation with the least hot water flow rate at 0. 26 GPM that requires a minimum flow rate activation of 0.40 GPM. Rheem RTG-84XLN-1 Tankless Heater consists of a water-saving technology that is capable of conserving water up to 1 to 100 gallons annually.
Rheem RTG-84XLN-1 Tankless Heater involves the use of an exclusive hot start programming that provides a ready-fire start, that prevents the bursting of cold water. The heater fuel consumption is 157,000 BTU, gas consumed per hour. The heater is designed for outdoor use only and consists of a freeze protection feature of up to -30 degrees. The heater comes with a ready recirculation pump that enhances the production of a continuous flow of hot water.
The product dimension is 8.9 x 13.9 x 23.6 inches with a weight of 54 pounds. The heater meets the safety requirements by SCAQMD for low emissions. This is enhanced by the use of the ultra-low NOx burner.
The Guardian Overheat Film Wrap prevents the heater from overheating thus safe and convenient to use. Other additional exclusive features include the self-diagnostic system, the Eco Net-enabled mobile app, and the digital remote control.
- Eco Net-enabled mobile app.
- Exclusive Water Savings technology.
- Ideal for up to 3 bathrooms only.
3. Rinnai RU Series Sensei SE+ Tankless Hot Water Heater
This is another energy-efficient tankless water heater by Rinnai. This is the best heater model from the RUR series capable of fast water heating and providing hot water at a faster rate at a constant temperature. This is from an excellent system design to ensure a comfortable user experience. It produces a high energy factor of up to 0.95 and a maximum hot water flow rate of 11 GPM.
Rinnai RU Series Sensei SE+ Tankless Hot Water Heater is made in a design that features Circ-Logic technology that makes it possible for the user to set recirculation patterns that will match with your habits. This enhances the production of a continuous flow of hot water at the pre-set temperature.
The recirculation technology and the high energy factors as well as the high hot water flow rate makes this system suitable for big homes despite the weather conditions.
Modern Rinnai RU models consist of integrated features like the check valve in the venting areas to protect the system from freezing up to -22F degrees. The system also consists of an easy remote control enhanced by the Control-R Wi-Fi module. This is a versatile system that allows voice activation for more convenience.
- The heater comes with a 15-year warranty.
- Versatile modern model design.
- Indoor installation only.
4.Excel Pro Tankless Gas Water Heater NATURAL GAS 6.6 GPM
This is a compact and powerful water heater by GASFLEX with a natural gas input of up to 140,000 BTU per hour. This system is designed in a way that modulates the heat output relative to the output water flow rate, this ensures that there is an equal heat dispersion. Excel Pro Tankless Gas Water Heater makes use of natural gas as the fuel, this is the European model digital display in Celcius.
This product can be vented directly vertically at the rooftop or sideways on the wall using a stainless steel frame. Excel Pro Tankless Gas Water Heater is capable of providing a hot water flow rate of up to 6.6 GPM with a 35F degrees instant temperature rise.
It also consists of an LCD display control that allows the user to control the whole system from a single place. The display panel enables you to easily and quickly set the desired water temperature. The product can be used with recirculation technology and space heating applications. It is capable of handling as much water output as a 40 gallons tank water heater, hence space-saving.
- Space and energy saving.
- LCD display heater control.
- 6.6 GPM flow rate is relatively low compared to other heaters.
5. Rinnai RL Series HE+ Tankless Hot Water Heater
Rinnai RL Series HE+ Tankless Hot Water Heater is an efficient model from Rinnai that is designed for indoor installation only. The heater uses natural gas and comes with a dependable valve kit hence safe and secure. The tankless hot water heater is made in a design that features Circ-Logic technology that makes it possible for the user to set recirculation patterns that will match with your habits.
This enhances the production of a continuous flow of hot water at the pre-set temperature. The heater is capable of providing a high hot water flow rate of up to 9.4 GPM.
The heating system from Rinnai Luxury Series is an environmentally friendly system that meets the SCAQMD strict NOx emission limits. The heater comes with a limited 12-year warranty on the heater’s heat exchanger that is specifically used for residential purposes and a 5-year warranty on heat exchangers used for commercial purposes.
- It can be used for both commercial and residential purposes.
- It consists of a dependable valve kit and a controller.
- It cannot use propane, only natural gas.
6. Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater
This is an energy-saving heater capable of saving up to 60% electricity bills. This is enabled by the temperature specific feature in this model. This works best especially in areas with high in-flow water temperature. Marey GA10LP Power Tankless Water Heater is made of a quality and durable construction.
The outer casing is made of aluminum-magnesium alloy casting, the aqueduct consists of durable stainless steel while the heaters and other elements are made to withstand extremely high temperatures. The construction is resistant to rusting.
Marey GA10LP Tankless Water Heater provides an endless hot water flow whenever needed and as needed. This is enhanced by the no electrical connection required for water heating, thus ideal heater for homes experiencing power outages more frequently. This product consists of a battery-powered automatic ignition.
- Durable construction.
- No electrical connection required.
- Installation can be hard for some individuals.
7. Camplux CA528 5.28 GPM Indoor Tankless Propane Water Heater
Camplux CA528 5.28 GPM Propane heater uses propane as the fuel gas to heat the water, it consists of smart and energy-saving design. The smart design features a temperature intelligent adjustment, man-machine dialogue feature, and PCB frequency conversion intelligent control making the heater effective and convenient for use. This is a residential heater model that is capable of providing an endless flow of hot water supplying a whole home.
Camplux CA528 5.28 GPM Propane heater consists of a high thermal efficient system consisting of a phosphorous deoxidized copper heat exchanger that allows full combustion with a high thermal efficiency of up to 92 percent. The heat exchanger is built in a technology that is resistant to corrosion and high temperature.
The system also features a high rise wind resistance design, it is capable of resisting grade 8 wind speed as well as 240 Pa anti-wind pressure. Camplux tankless heater also a wind pressure sensor that allows automatic adjustment of the flame and fun to maintain stable and continuous combustion.
This is a CSA certified heater with a balanced combustion design. The smoke produced after combustion is forced out of the outdoor to make sure that there is fresh indoor air. An additional safety feature is CO multiple protection features. This product has precise temperature control and an automatic water pressure activation between 7.0 – 150 PSI.
- Smart and energy-saving design.
- High rise wind resistance design.
- High temperature and corrosion-resistant heat exchanger.
- A low flow rate of 5.28 GPM.
8. Noritz NRC66DVNG Indoor Tankless Hot Water Heater
Noritz NRC66DVNG Indoor Heater is a condensing natural gas heater with a maximum hot water flow rate of 6.6 gallons per minute. It is capable of providing an endless supply of hot water as required.
This heater consists of a modernized heat exchanger design and an in-built controller. This product can be vented using a schedule 40 PVC, CPVC, or a PP pipe with a wide array of venting options provided by the various adapters and terminators.
The product comes with a 12-year heat exchanger warranty, 5-year parts warranty, and a 1-year labor warranty. It has a product dimension of 6.7 x 13.8 x 23.6 inches. The package also consists of a remote thermostat and a 6-inch power cord.
- Endless hot water supply.
- Low NOx emission hence environmentally friendly.
- Valve kit which is required for installation is sold separately.
9. Marey Power Gas 10L 2.7 GPM Propane Gas Digital Panel Tankless Water Heater
Marey Power Gas 10L 2.7 GPM Tankless Water Heater is made of high-quality and durable construction with a compact design. These allow easy installation in any place as well as space-saving.
The product has a dimension of 6.9 x 13.6 x 23.6 inches and a weight of 21 pounds. The heater provides endless hot water supply as needed and allows easy heater control. The control panel consists of three soft-touch knobs for controlling temperature, regulating gas inflow, and regulating the flow of water. It also consists of a digital display panel for displaying temperature.
Marey Power Gas 10L 2.7 GPM Tankless Water Heater is a no electrical connection heater that makes use of 2D cell battery for the automatic gas ignition, this makes the heater ideal for homes experiencing power outages more frequently.
This is an energy-saving heater capable of saving up to 60% energy bills, enabled by the temperature specific feature in this model which works best especially in areas with high in-flow water temperature saving up to 60 percent energy.
- Energy-efficient heater capable of saving up to 60% energy.
- Digital temperature display.
- The water flow rate is quite low.
10. Eccotemp 45HI-NG Indoor 6.8 GPM Natural Gas Tankless Water Heater.
This is a compact and quiet tankless indoor water heater by Eccotemp designed for indoor installation and use only and with a maximum hot water flow rate of 6.8 gallons per minute. The heater has a product dimension of 22 x 15 x 6 inches and an item weight of 27.3 pounds.
Eccotemp 45HI-NG is a natural gas-powered heater that is activated only when in use, hence energy-efficient water heater. It is certified by the CSA for safe and secure use in the US and Canada. Eccotemp 45HI-NG Indoor heater requires a 4-inch venting. The package also comes with a gas shut-off valve, temperature and pressure relief valve, and 3/4-inch fittings.
- CSA certified hence safe for use.
- 6.8 GPM hot water flow rate.
- Lacks a 4-inch venting in the package, that is required for indoor installation.
How to Choose the Best Gas Tankless Water Heater For Cold Climates.
Choosing the best gas tankless water heater for cold climates involves considering the employed features that make the heater ideal for the cold climates. These features include:
Electric powered tankless heaters.
Electric powered tankless heaters are more ideal for cold climates than the battery-powered heater. Electric-powered consists of more features that protect the unit from freezing like the freeze protection feature.
Well-insulated outdoor tankless heater pipes.
Tankless water heaters with insulated inflow and outflow water pipes are ideal for cold climates than the non-insulated pipes, especially for outdoor installation heaters. This ensures that the flowing water remains hot hence maintaining the water temperature even in the cold climate. The insulation also protects the system from freezing.
Fast start heats up.
Tankless water heaters with this feature are the most ideal for cold climates. This prevents the first bursting of cold water which is enhanced by the ready fast start heats up feature in these heaters.
Freeze protection features.
Freeze protection features protect the system from the freezing climatic conditions hence ideal for cold climates.
Proper venting for indoor heaters.
Indoor heaters require venting during installation. The venting design determines how ideal the system is for cold climates. Proper vent installation should have the vent termination facing away from the wind and snow.
Why Gas Tankless Water Heater Is More Proper For Cold Climates?
Tankless water heaters both natural gas and electric are considered more effective in their performance in warmer climates. In cold climates, the gas tankless water heater is considered more proper in performance and efficiency compared to the tankless water heaters.
More powerful
The natural gas tankless water heater is proper for this climate because it is more powerful than the electric heaters. In this weather electric heaters tend to take longer periods of time heating water than they do in normal climatic conditions. the gas tankless heater will heat the same amount of water with the same period of time with lesser effects from the weather than the electric heaters.
Save much energy
The gas tankless water heater is powered by gas, saving the cost of electricity, it may need electrical power to start but after that, the water heater is run by gas to heat water. This makes you save on electricity consumption bill charges by a lot since you will not need electricity to run your heater, which takes more time meaning more electricity use and more electricity bill for you for lesser performance and efficiency.
Freeze protection features
It gets even better with the gas tankless water heaters in the cold weather. this is because they are equipped with freeze protection features, fast start heats up, and condensing systems which improve the efficiency in results. With freeze protection, the system is well protected from freezing making the flow of water in the system efficient and water heating at its best, as usual, making the performance more normal as in the warm climate areas.
The fast start heats up feature prevents the first bursting of cold water making the gas heater more ideal for the cold climate. The condensing system has heating exchangers that allow the system to recover the heat that would be lost without this feature, leading to less energy consumption
How Do I Keep My Tankless Water Heater From Freezing Climates?
- The care and maintenance of tankless heaters from the freezing climate is by installing indoor heaters in insulated areas.
- For outdoor tankless heaters, some heaters are designed with freeze protection feature to a certain degree.
- Using the proper venting system and proper installation. Proper vent installation should have the vent termination facing away from the wind and snow.
- Use insulated pipes or insulate your pipes. This is much relevant for outdoor tankless heaters. You should insulate the incoming and outgoing water pipes to keep the water flowing hot.
- You should always make sure that you have backup power for the outdoor tankless heaters with freeze protection features. These features are power-driven hence the need for power backup incases of an electricity outage.
Top 3 Best Gas Tankless Water Heaters for Cold Climates