NOVIEEX Tankless Water Heater Review: Specs, Pros and Cons

What stands out

• 86,000 BTU heating power for up to 3.6 GPM flow rate
• Digital thermostat with 95°F to 149°F adjustable range and ±1°F precision
• Wall-mounted design measuring 28.5 x 17.3 x 10.8 inches
• Multi-protection safety system against leaks, overheating, and freeze damage
• LED touchscreen interface for intuitive operation and monitoring

Who it fits

Novieex Key Specs Explained

86,000 BTU

This rating indicates the burner’s heat output capacity. Higher BTU numbers generally allow the unit to heat water faster and maintain flow rates during colder months. You should compare this figure against other propane models to ensure it can handle your local inlet water temperature. It is the primary driver for the unit’s ability to deliver instant hot water without significant temperature drops.

3.6 GPM

Gallons per minute measures the maximum volume of hot water the heater can produce. This flow rate supports simultaneous use, such as a shower and a kitchen sink. You should verify that your home’s plumbing pressure falls within the 1.5 to 116 psi range to achieve this number. If you require higher flow for multiple bathrooms, you may need a larger unit.

95°F to 149°F

This range defines the adjustable water temperature settings available via the digital thermostat. The ±1°F precision ensures the output stays consistent, which is useful for sensitive skin or specific appliance requirements. You can set lower temperatures for hand washing or higher settings for heavy-duty cleaning. This control prevents scalding while allowing flexibility for different household tasks.

Propane

This fuel type determines the gas supply needed for operation. Propane units require a dedicated gas line and proper ventilation. You must ensure your home has access to a propane tank or grid connection. Compared to electric models, propane heaters often deliver higher flow rates but require professional installation to handle gas connections safely and efficiently.

Indoor

This classification indicates the unit is designed for interior mounting. It requires specific clearance and ventilation standards to operate safely within your home. You cannot install this model in an unventilated garage or outdoor space without modifications. Check local building codes to confirm that your intended location meets the safety requirements for indoor gas appliance installation.

Design and Build Overview

According to the listing, the Novieex RS-13 unit measures 28.5 inches in length, 17.3 inches in width, and 10.8 inches in height. It weighs 19.8 pounds. These dimensions allow it to mount on a wall in utility rooms, basements, or closets. The compact footprint saves over fifty percent of space compared to bulky traditional tanks. The exterior finish is gray, which blends into most indoor utility spaces without drawing attention. The unit is designed strictly for indoor installation. This means you must place it where ventilation and gas lines are already available. Outdoor models require different weatherproofing, which this unit does not have.

The front panel features an LED touchscreen interface. This digital display allows you to set and view the water temperature directly. You can adjust the thermostat within a wide range from 95°F to 149°F. The listing notes a control precision of ±1°F. This level of accuracy helps maintain consistent water heat for showers or kitchen tasks. The interface is positioned for easy access during operation. You do not need to reach behind the unit to change settings. The layout keeps all necessary controls visible and reachable. The compact design ensures it fits in tight corners while still providing 3.6 GPM of flow. This makes it suitable for homes where space is limited but hot water demand is steady.

Setup and Everyday Use Guide

Setting up this Novieex tankless water heater requires professional installation by a licensed technician. The unit is designed for indoor use only. You must connect the gas inlet, cold water inlet, and hot water outlet using 1/2" NPT fittings. The listing notes that an exhaust pipe is included in the package. Electrical connection requires a standard 110V-120V AC power supply at 60Hz. Ensure your water pressure stays within the specified range of 1.5 to 116 psi. The gas rated pressure should be set to 11.24" w.c. (2.8 kPa). For optimal performance, the manufacturer recommends using the unit below 2000 feet altitude. Daily operation is managed through an LED touchscreen interface. This digital thermostat allows you to adjust the water temperature precisely. The adjustable range spans from 95°F to 149°F with a control accuracy of ±1°F. The built-in multi-protection system monitors for gas leaks, overheating, dry-firing, and potential freeze damage. This safety layer activates automatically to protect your household. The selectional burner system adjusts the flame intensity based on your chosen temperature and flow rate. You can run a shower, kitchen faucet, and bathroom sink simultaneously. The 86,000 BTU output supports up to 3.6 GPM of instant hot water. This capacity helps maintain consistent temperatures without noticeable drops during concurrent use. The compact wall-mounted design saves space in utility areas. It blends into basements or closets without obstructing movement. Regular maintenance involves checking the digital display for error codes and ensuring the exhaust path remains clear. The unit operates silently during normal heating cycles.

Before You Buy This Heater

Before you buy this Novieex unit, verify your home’s gas supply and electrical setup. It requires a 110V-120V AC power source and 1/2" NPT fittings for gas, water inlet, and outlet connections. Since it is rated for indoor use only, ensure your installation location meets ventilation and safety codes. Check your local water pressure, which must stay between 1.5 and 116 psi for proper operation. The unit performs best below 2000 feet altitude, so higher elevations may reduce efficiency. You will need a licensed technician for safe installation, as gas connections involve specific pressure requirements of 11.24" w.c. Consider whether the 3.6 GPM flow rate meets your household’s simultaneous demand. Compare this propane model against electric or other gas options in our 1 product guide to find the best fit for your energy source and space constraints. Regular maintenance includes checking for gas leaks and ensuring the digital thermostat functions correctly to maintain precise temperature control.

Check before you buy

• Confirm indoor installation location and ventilation compliance.
• Verify 110V-120V AC power and 1/2" NPT fittings.
• Check water pressure is between 1.5 and 116 psi.
• Ensure altitude is below 2000 feet for optimal performance.
• Hire a licensed technician for safe gas connection.

The product at a glance

1

Novieex 3.6 GPM Propane Tankless Water Heater

Best for: indoor households needing precise hot water

Fuel Type

Propane

Flow Rate

3.6 GPM

BTU

86,000 BTU

Installation Location

Indoor

Voltage

110V-120V AC/60Hz

Temperature Control

95°F to 149°F, ±1°F

View on Amazon: Novieex 3.6 GPM Propane Tankless Water Heater Affiliate link

This indoor propane unit delivers up to 3.6 GPM at 86,000 BTU. It features a digital thermostat with ±1°F precision and a wide 95°F to 149°F range. The compact 28.5 x 17.3 x 10.8 inch design saves space. It includes multi-protection safety features. This heater suits households needing reliable hot water for showers and sinks without the bulk of a traditional tank.

Pros

• 86,000 BTU output provides up to 3.6 GPM flow rate
• Digital thermostat offers ±1°F temperature precision
• Adjustable temperature range from 95°F to 149°F
• Compact wall-mounted design saves over 50% space
• Multi-protection system guards against gas leaks and overheating

Cons

• Indoor installation only requires professional setup
• Recommended for use below 2000 feet altitude
• 1-year manufacturer warranty is shorter than industry average

Good fit if

• You need hot water for simultaneous showers and sinks
• You want precise temperature control for sensitive skin
• You have limited space for a wall-mounted unit

Skip if

• You require outdoor installation capabilities
• You live above 2000 feet altitude
• You prefer electric heating over propane

Verdict: NOVIEEX 3.6 GPM Propane Tankless Heater provides precise temperature control and high flow for indoor households. It fits users who need reliable hot water for multiple fixtures without tank bulk.

Specifications side by side

Frequently asked questions

See also

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