NOVIEEX Natural Gas Tankless Water Heater or NOVIEEX 27kW Tankless Water Heater? Which NOVIEEX Model to Buy
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The novieex natural gas tankless water heater vs 27kw tankless water comparison highlights two distinct heating methods. Both models are indoor units designed for on-demand hot water. They share wall-mounted designs and digital controls. The main difference is the power source. One uses natural gas for steady flow, while the other uses high-voltage electricity for heavy-duty output. You must choose based on your home’s existing infrastructure. This guide breaks down the specs to help you decide.
Key differences
| Aspect | Novieex 4.3 GPM Indoor Natural Gas Water Heater | NOVIEEX 27 kW 7.4 GPM Tankless Water Heater |
|---|---|---|
| Fuel Type | Natural Gas | Electric |
| Flow Rate | 4.3 GPM | 7.4 GPM |
| Voltage | 110V-120V AC | 240V |
| Wattage/BTU | 100,000 BTU | 27kW |
| Dimensions | 28.5 x 17.3 x 10.8 in | 14.13 x 15.86 x 3.18 in |
| Temperature Range | 95°F to 149°F | 77°F to 140°F |
Which one should you choose?
Choose Novieex 4.3 GPM Indoor Natural Gas Water Heater if
- You have existing natural gas lines and prefer a lower electrical draw.
- You need a higher maximum water temperature up to 149°F.
- You want a unit with a wider temperature adjustment range.
Choose NOVIEEX 27 kW 7.4 GPM Tankless Water Heater if
- You need a higher flow rate of 7.4 GPM for multiple bathrooms.
- You have a dedicated 240V electrical system with sufficient amperage.
- You want a more compact unit that is thinner and narrower.
Verdict: Choose the gas model if your home has gas lines and you prioritize higher temperature limits. Choose the electric model if you need maximum flow for a larger household and have the necessary electrical capacity. Both are efficient indoor solutions, but the fuel source dictates your choice.
NOVIEEX Gas vs Electric Head-to-Head
Fuel Type
The first major difference is the energy source. The Novieex 4.3 GPM Indoor Natural Gas Water Heater runs on natural gas. It requires a gas line and a 110V-120V AC power supply for its electronics. The Novieex 27 kW 7.4 GPM Tankless Water Heater is fully electric. It uses 240V power and needs three 40A double-pole circuit breakers with 8 AWG wires. You must choose based on your home’s existing infrastructure. If you have natural gas, the first model is ready. If you have strong electric service, the second model works.
Flow Rate
Flow rate determines how many fixtures can run at once. The Novieex 27 kW 7.4 GPM Tankless Water Heater delivers up to 7.4 gallons per minute. This high output supports three to four water applications simultaneously without temperature drops. The Novieex 4.3 GPM Indoor Natural Gas Water Heater provides up to 4.3 GPM. This is sufficient for a shower, kitchen faucet, and bathroom sink at the same time. The electric model offers significantly higher volume for larger households or demanding usage patterns.
Voltage
Electrical requirements vary greatly between these two units. The Novieex 4.3 GPM Indoor Natural Gas Water Heater uses standard 110V-120V AC at 60Hz. This is a common household outlet voltage. The Novieex 27 kW 7.4 GPM Tankless Water Heater requires a dedicated 240V supply. It draws a maximum current of 112.5A and needs three sets of 8 AWG wires with ground. You need a qualified electrician to verify your panel can handle this load. The gas model is easier to wire for standard homes.
Dimensions
Size matters for installation space. The Novieex 27 kW 7.4 GPM Tankless Water Heater is very compact. It measures 14.13 inches wide, 15.86 inches high, and only 3.18 inches deep. This slim profile fits well in narrow closets. The Novieex 4.3 GPM Indoor Natural Gas Water Heater is larger. It measures 28.5 inches long, 17.3 inches wide, and 10.8 inches high. It is also heavier at 19.8 pounds. The electric model takes up less wall space and depth.
Temperature Control
Both units offer precise digital temperature control, but the ranges differ. The Novieex 4.3 GPM Indoor Natural Gas Water Heater adjusts from 95°F to 149°F with ±1°F accuracy. The Novieex 27 kW 7.4 GPM Tankless Water Heater ranges from 77°F to 140°F in 1°F increments. The gas model allows for higher maximum temperatures, which can be useful for specific cleaning tasks or in colder climates. The electric model provides a slightly lower maximum but still covers most household needs with fine adjustment steps.
Which Novieex Model Fits Your Home
Renters with gas lines
You already have natural gas infrastructure. This model delivers 4.3 GPM at 100,000 BTU. It fits standard 1/2 inch NPT gas lines. The compact 28.5 inch width saves space. You get precise temperature control from 95 to 149 degrees. It requires only 110V power for the digital display.
Homes needing high flow
You need maximum hot water volume. This electric unit provides up to 7.4 GPM. It uses 27kW of power to heat water instantly. You must have a 240V electrical system with 112.5A capacity. The 14 inch width fits tight spaces. It supports multiple showers simultaneously without temperature drops.
Budget-conscious electric homes
You want efficiency without gas costs. This heater achieves 99.8% energy conversion. It only draws power when water flows. You avoid standby heat loss entirely. The 8-layer safety system includes leakage protection. You get lifetime technical assistance and a 1-year warranty. It is ideal for whole-house electric setups.
The products compared
Novieex 4.3 GPM Indoor Natural Gas Water Heater
Best for: Indoor homes with natural gas and high flow needs
- Fuel Type
- Natural Gas
- Flow Rate
- Up to 4.3 GPM
- BTU
- 100,000 BTU
- Installation Location
- Indoor
- Voltage
- 110V-120V
- Temperature Control
- 95°F to 149°F, ±1°F
View on Amazon: Novieex 4.3 GPM Indoor Natural Gas Water Heater Affiliate link
This NOVIEEX natural gas tankless water heater delivers up to 4.3 GPM at 100,000 BTU. It features precise temperature control from 95°F to 149°F with ±1°F accuracy. The unit is indoor-only and wall-mounted. You get an LED touchscreen for easy operation. It fits utility rooms or closets. This model suits households needing reliable hot water for multiple fixtures simultaneously without temperature drops.
Pros
- 100,000 BTU output provides up to 4.3 GPM flow rate
- Digital thermostat offers ±1°F temperature precision
- Wall-mounted design saves over 50% of space
- LED touchscreen interface for intuitive control
Cons
- Indoor installation only; no outdoor rating
- Requires professional installation by a licensed technician
- Recommended for use below 2000 feet altitude
Good fit if
- You need high flow rate for multiple simultaneous fixtures
- You have an existing natural gas line
- You want precise temperature control with minimal fluctuation
Skip if
- You require outdoor installation capability
- You live above 2000 feet altitude
- You prefer electric power sources over natural gas
Verdict: NOVIEEX 4.3 GPM Natural Gas Heater is a solid choice for indoor residential use where high flow and precise temperature control are priorities. It fits homes with existing gas lines and professional installation access.
NOVIEEX 27 kW 7.4 GPM Tankless Water Heater
Best for: Large homes with high electrical capacity
- Fuel Type
- Electric
- Flow Rate
- 7.4 GPM
- Wattage
- 27kW
- Installation Location
- Indoor
- Voltage
- 240V
- Temperature Control
- 77°F to 140°F, 1°F increments
View on Amazon: NOVIEEX 27 kW 7.4 GPM Tankless Water Heater Affiliate link
The NOVIEEX 27kW unit is a heavy-duty electric tankless water heater designed for whole-house use. It delivers up to 7.4 GPM at 240V, supporting 3 to 4 simultaneous water points. The unit features a slim 14.13-inch width and precise 1°F temperature increments. It requires specific electrical infrastructure, including three 40A breakers and 8 AWG wiring. This model suits larger homes needing high flow rates without storage tanks.
Pros
- High flow rate of up to 7.4 GPM for multiple simultaneous uses
- Slim wall-mount design measures only 3.18 inches deep
- Precise temperature control in 1°F increments from 77°F to 140°F
- 99.8% energy conversion efficiency eliminates standby heat loss
Cons
- Requires 3 separate 40A double-pole circuit breakers and 8 AWG wires
- Maximum current draw of 112.5A demands robust electrical capacity
- Limited to indoor installation only
Good fit if
- You need high flow rates for 3 to 4 simultaneous water applications
- You have the electrical capacity for three 40A circuits
- You want a compact unit for narrow utility spaces
Skip if
- You only have a standard 240V outlet without dedicated high-amperage breakers
- You require outdoor installation options
- You cannot accommodate the 14.13-inch width and 15.86-inch height
Verdict: NOVIEEX 27kW Electric Tankless Water Heater delivers exceptional flow for large households with robust electrical setups. It is ideal for homes needing simultaneous hot water at multiple points without the bulk of a storage tank.
Specifications side by side
| Spec | Novieex 4.3 GPM Indoor Natural Gas Water Heater | NOVIEEX 27 kW 7.4 GPM Tankless Water Heater |
|---|---|---|
| Fuel Type | Natural Gas | Electric |
| Flow Rate | Up to 4.3 GPM | 7.4 GPM |
| BTU | 100,000 BTU | not stated |
| Wattage | not stated | 27kW |
| Installation Location | Indoor | Indoor |
| Voltage | 110V-120V | 240V |
| Temperature Control | 95°F to 149°F, ±1°F | 77°F to 140°F, 1°F increments |
| Dimensions | 10.8 x 17.3 x 28.5 inches | 14.13 W × 15.86 H × 3.18 D in |
| Use | not stated | Whole House |
| Weight | 19.8 pounds | not stated |
| Size | 4.3GPM Nature gas | 27 kW |
| Color | Pearl Grey | Silver |
| Model | RS-16 | DS-18 |
Frequently asked questions
Can the Novieex 27kW unit handle multiple showers at once?
Yes, this model is designed for whole-house use with a 7.4 GPM flow rate. It provides high output for large households needing simultaneous hot water. The 27 kW power ensures consistent delivery across multiple points without the need for a storage tank.
What are the dimensions of the Novieex gas water heater?
The Novieex 4.3 GPM Natural Gas Water Heater measures 28.5 inches in length, 17.3 inches in width, and 10.8 inches in height. It weighs 19.8 pounds. These compact dimensions make it suitable for indoor installations where space is limited.
Does the electric model require a special electrical setup?
Yes, the Novieex 27kW Tankless Water Heater requires a 240V electrical connection. It is best suited for homes with robust electrical capacity. This high voltage supports its 27 kW output, ensuring efficient heating for large residential demands.
Is the Novieex gas heater suitable for outdoor installation?
No, the Novieex 4.3 GPM Natural Gas Water Heater is rated for indoor installation only. It is designed for indoor homes with natural gas lines. You must install it in an indoor location to ensure proper ventilation and safety.
Which Novieex model provides higher flow rate?
The Novieex 27kW Tankless Water Heater provides a higher flow rate of 7.4 GPM. The natural gas model delivers 4.3 GPM. If you need more water volume for multiple fixtures, the electric 27kW unit is the better choice.
What color options are available for these Novieex heaters?
The Novieex 4.3 GPM Natural Gas Water Heater comes in Pearl Grey. The Novieex 27kW Tankless Water Heater is available in Silver. Both units feature sleek designs that blend well with standard indoor utility spaces.