The Navien NPE 240A Review: A Good Water Heater Option?

Nothing in home ownership is more frustrating than an outdated or inconsistent water heater. Updating this appliance when buying a new home or building a new property is often at the top of the to-do list. However, choosing the model that best suits your home and pocketbook can be somewhat of a chore at best, and deeply frustrating at worst. This is why we've taken a close look at a selection of the foremost water heater manufacturers and compared their offerings against one of the most popular models available in our Navien NPE 240A review.

What Is the Navien NPE 240A?

The Navien NPE 240A is a condensing tankless water heater, offering an entire family's worth of hot water in a single compact yet powerful unit. As a tankless unit, it offers increased energy efficiency and immediate access to warm water without the wait of a traditional water heater, which are required to re-heat an entire tank of water that has cooled down with each use. Its medium to small size makes it an excellent space saving option for those without basements or in otherwise cramped living spaces, such as cabins or apartments. We'll be going over this and other models in our Navien NPE 240A review.

Product Specs

The first option to be examined in our Navien NPE 240a review is the namesake itself. The unit is 17.3" in width, 27.4" in height, and 13.2" in depth, with an overall weight of 82lbs. Along the top of the unit are an air intake and exhaust gas vent, each 2" in diameter. On the bottom of the unit is a hot water outlet, A-model recirculation inlet, cold water inlet, and gas inlet, all 3/4" in diameter, as well as a condensate outlet that is 1/2" in diameter.

The model is CSA, NSF Standard 5, Low Lead, SCAQMD 1146.2, and Energy Star certified. It has an EF rating of 0.97, a UEF rating of 0.96, and a MAX GPM of 5.6. The unit requires a 120V AC, 60Hz power supply. The natural gas and propane gas BTU/H capacity is 19900-199900.

The operating cost of this Navien Tankless model is 175.0 therms at $191. It sports 1 water heater LEED point, 2 location points, and 3 recirculation points. The flow rate of this model is 11.2 GPM at 35 degrees Fahrenheit, 8.7 GPM at 45 degrees Fahrenheit, and 5.6 GPM at 67 degrees Fahrenheit. Installation is of the indoor or outdoor wall-hung variety, and the venting type is forced draft direct vent.

The model features electronic ignition and a water pressure of 15-150 psi. Outside of the model itself, the Navien NPE 240A allows for wireless Wi-Fi control via smartphone with an additional accessory. With this, temperature can be controlled, and diagnostic, and usage data can be accessed from anywhere.

Pricing

The models explored in our Navien NPE 240A review range in price from $130-$1400, with the models listed roughly descending in price. The more expensive varieties tend to be more suited for use in a larger home, with the more inexpensive models perfectly suited for smaller abodes. The models on this list are available wherever home goods are sold, from online marketplaces or retailers such as Amazon, or from the manufacturer's website.

How It Compares

In compiling our Navien NPE 240A review, we've stacked it against several other competing models in the categories of price, ease of use, assembly time, durability, and warranty, along with the pros and cons we've found with each unit. At the end of our Navien NPE 240A review, we'll guide break down the key differences and guide you through choosing the best unit for your living space.

  • Stiebel Eltron Tempra 36 Plus
  • EcoSmart ECO 27
  • Eccotemp EM-2.5

Navien NPE 240A

EZ Ultra HE Natural Gas Condensing Tankless Water Heater
  • Condensing Technology - The EZ Ultra HE uses exhaust gas to preheat...
  • This heater can be vented horizontally or vertically using 2" Solid...
  • Back-draft prevention device and stainless steel horizontal vent pipe...

Price

$$$

Ease of Use

This model's effectively compact design and intuitive frontal touch plate and display make it easy to operate where many other models can be a pain to work with. To further bolster this unit's ease of use, an additional accessory can be purchased which allows the model to be controlled wirelessly from a smartphone app. However, it must be purchased separately.

Installation

The manual offered by the manufacturer may be difficult for a layman to follow. However, the overall streamlined simplicity of the design cuts a lot of confusion from the process.

Durability

The model's case is cold rolled carbon steel, with stainless steel primary and secondary heat exchangers, making this unit a long lasting investment.

Warranty

A warranty of 1 year for labor, 5 years for parts, and 15 years for heat exchanger component is offered by the manufacturer for this model following the date of initial purchase.

PROS

  • Tankless model for immediate hot water and high energy efficiency
  • Smart design lends to easy control and installation
  • Extensive warranty coverage

CONS

  • Most expensive option of the list
  • Wi-Fi connectivity requires accessory sold separately

Stiebel Eltron Tempra 36 Plus

Stiebel Eltron Tankless Water Heater – Tempra 12 Plus – Electric,...
  • CONTINUOUS FLOW – Advanced Flow Control German patented technology...
  • SPACE & ENERGY SAVER – Its small, sleek white design saves space yet...
  • EASY OPERATION – Electronic flow sensor switches on the powerful...

The first water heater model we've chosen as a point of comparison in our Navien NPE 240A review is the Stiebel Eltron Tempra 36 Plus, a tankless water heater which provides instantaneous hot water and energy efficiency. It offers microprocessor assisted Advanced Flow Control, allowing for hot water regardless of how high the demand is at any given moment by automatically reducing output. This achieves sustained and consistent temperature at the expense of water pressure. Sleek design and intuitive dial-based controls keep operation simple and responsive, with streamlined hookups for easy installation.

The Stiebel Eltron Tempra 36 Plus is 16 5/8" in width, 14 1/2" in height, and 4 5/8" in depth, with a total weight of 19lbs, making it quite compact. This model operates with a 240-volt power supply, with a wattage of 36 kW. It has an amperage draw of 3 x 50 A. The minimum water flow for activation is 0.77 GPM. The working pressure of this model is 150 psi, with a maximum pressure of 300 psi. Both water connections are 3/4" NPT. 99% efficiency can be expected with this unit, usually resulting in 15_20% savings in comparison to traditional water heaters.

Price

$$$

Ease of Use

This model sports a responsive and intuitive dial-based interface with LCD display for easy readouts and adjustment of settings.

Installation

The manual offered by the manufacturer may be difficult for a layman to follow. However, the overall streamlined simplicity of the design cuts a lot of confusion from the process.

Durability

The small size and sheet steel exterior of this model contribute to a degree of durability. However, the copper internal components may be more subject to wear and necessary replacements.

Warranty

A 3-year warranty for materials and workmanship, as well as a 7-year leak warranty are offered by the manufacturer following the date of initial purchase.

PROS

  • Compact, inconspicuous appearance
  • Silent operation
  • Only two external hookups

CONS

  • Water pressure will dip during high demand
  • Installation isn't much aided by instruction

EcoSmart ECO 27

EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts,...
  • Savings of up to 50% on water heating costs. Dimensions :17H x 17W x...
  • Digital temperature control in 1-degree increments allows control of...
  • Copper and stainless components designed for efficiency, durability...

The second water heater model we're taking a closer look at in our Navien NPE 240A review is the EcoSmart ECO 27. As the name implies, this tankless model performs extremely energy efficiently, effectively cutting water heating costs by 50%. It is capable of self-modulating, adjusting energy usage based on the amount of demand placed on the system. It features a frontal dial-based digital control scheme. It is compact, yet capable of running hot water to up to four showers and a sink simultaneously.

This model is 17" in width, 17" in height, and 3.625" in depth, with an overall weight of 14.7lbs. The unit is activated upon a water pressure of over 0.3 GPM. It requires a power supply of 27kW, with an amperage draw of 113 A. The breaker required is 3 x 40 A, with a required wire of 3 x 8 AWG, and it sports 3/4" NPT connection fittings. This model is UL-499 and ETL Listed.

Price

$$

Ease of Use

The front dial of this system is straightforward, but offers less visual feedback than the other models of this list, making technical readouts more or less impossible. Although this may not be an immediate issue for most consumers, in the event of a technical malfunction, this could potentially be a source of headaches.

Installation

Very little installation information is offered by the manufacturer, making third-party installation assistance virtually a necessity. However, the unit itself is fairly simple in design and won't require an intense installation process.

Durability

This model features a combination of copper and stainless steel components, designed for easy replacement in the event of failure and long-term durability, respectively.

Warranty

A 5-year lifetime limited warranty is offered by the manufacturer.

PROS

  • Extremely energy efficient
  • Powerful yet affordably priced
  • Durable stainless steel parts

CONS

  • Will likely require third-party installation
  • Interface is somewhat lacking

Eccotemp EM-2.5

Eccotemp EM-2.5 Electric 2.5-Gallon Mini Tank Water Heater
  • Compact design fits virtually anywhere, easy and ready to install
  • Adjustable temperature control 50 Degree-140 Degree
  • Temperature/Pressure relief valve included

The last model we're examining in our Navien NPE 240A review is the extremely affordable, compact, and versatile Eccotemp EM-2.5. This model is considered a 'point of use' Mini-Tank type water heater, meaning it is only designed to heat water from one source. This makes it excellent for small living situations. Despite its small size and limited range of water supply, it is capable of heating up to two sinks, and can even be incorporated into an existing hot water system to increase the speed of hot water delivery. Although small, it is nonetheless a tank style water heater and requires a minimum recovery time of 20 minutes after use.

This model is ETL certified and operates at a maximum water pressure of 150 psi. Installation is a snap and allows for the unit to be mounted on any wall or surface or even to be left freestanding. It plugs into any standard 110/120v outlet. The tank is 2.5 gallons, with a heating capacity of 1440 watts. As a smaller unit, it does not require re-circulating lines or pumps. It has an adjustable temperature range of 50 degrees Fahrenheit to 140 degrees Fahrenheit and is compatible with standard 1/2" NPT connections. The model is 17" in height, 16" in width, and 15" in depth.

Price

$

Ease of Use

Despite its simplistic, single dial control scheme, the fact that this model can be carried around and incorporated into effectively any plumbing arrangement where it might be needed makes it an extremely useful and easily managed device.

Installation

Directions for installation are clearly listed on the unit, and the various hookups are color-coded for convenience, making this a simple unit to install under any circumstances.

Durability

This unit is solid, but due to its significantly lower price and standalone quality, should something break or malfunction repair is likely less feasible than with more far-reaching and permanent models.

Warranty

The manufacturer provides a 5-year limited warranty for leaks and a 2-year limited warranty for defects following the date of initial purchase. Free accessories, such as showerhead, hose, and regulator, are offered for 30 days.

PROS

  • Highly versatile, standalone unit
  • Free accessories following purchase if necessary
  • Can be incorporated into preexisting water heater setups

CONS

  • Tank style water heater
  • Somewhat more replaceable in nature than more permanent water heater models
  • Single point of use

Conclusion—Our Navien NPE 240A Review

With our Navien NPE 240A review, we've not only gone over the specifics of the aforementioned model, we've also outlined the pros and cons of its competitors. Although the Navien is certainly the most expensive on the list, it is the most powerful and offers more customization and control over the unit than any of the competitors, as well as the most consistent performance.

However, for a reduced price and slightly reduced water pressure during heavy use, the two models that follow are just as energy efficient and bring the same immediate results of a tankless water heater in an equally discrete and even more compact package. Even the odd one out - the Eccotemp miniature standalone tank water heater - will find more use in small living spaces than the others by way of its straightforward and versatile design. We hope that by touching on these competing models, we've even further clarified the type of water heater that will best suit your needs.

Featured Image Source: navieninc.com

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