EcoSmart 27 KW Tankless Water Heater Tips (5 Pro Setup Hacks)

I once found myself shivering in my own bathroom, the water turning from lukewarm to downright frigid mid-shower. It was a stark reminder that my old water heater was on its last legs. That’s when I decided to ditch the tank and dive into the world of tankless water heaters, specifically the EcoSmart 27 kW model. Let me tell you, the promise of endless hot water was incredibly appealing, especially after years of dealing with a limited supply.

But, like any DIY project, the installation and setup weren’t without their hurdles. I quickly realized that maximizing the efficiency and lifespan of my new EcoSmart required more than just following the basic instructions. It demanded a deeper understanding of the unit and some pro-level setup hacks.

Key Takeaways:

Sizing Matters: Choosing the right size EcoSmart unit is crucial for meeting your hot water demands without overspending.
Electrical Expertise: Proper electrical installation is paramount for safety and performance. Don’t skimp on professional help if needed.
Water Quality is Key: Hard water can wreak havoc on tankless heaters. A water softener is a wise investment.
Temperature Tweaks: Fine-tuning the output temperature can significantly impact energy savings and comfort.
Regular Maintenance: Flushing your EcoSmart unit annually will prevent mineral buildup and extend its lifespan.

So, if you’re considering an EcoSmart 27 kW tankless water heater or already have one, I’m here to share the hard-earned wisdom I’ve gained through my own experiences. These are the “pro setup hacks” that will help you get the most out of your investment, avoid common pitfalls, and enjoy years of reliable, on-demand hot water.

Unveiling the EcoSmart 27 kW: Is It the Right Fit for You?

Before we get into the nitty-gritty of setup, let’s talk about whether the EcoSmart 27 kW is even the right choice for your household. It’s a powerful unit, but it’s not a one-size-fits-all solution.

Understanding Your Hot Water Needs

The first step is to assess your hot water demand. How many showers do you typically run simultaneously? Do you have a large soaking tub? What about appliances like dishwashers and washing machines?

Here’s a simple formula to estimate your peak hot water demand:

Identify your hot water appliances: List all appliances that use hot water (showers, sinks, dishwashers, washing machines, etc.).
Determine flow rates: Find the flow rate for each appliance in gallons per minute (GPM). This information is usually available on the appliance itself or in its user manual.
Estimate simultaneous use: Determine which appliances are likely to be used at the same time. For example, you might have two showers running simultaneously while the dishwasher is also in operation.
Calculate total flow rate: Add up the flow rates of all appliances that are likely to be used simultaneously. This will give you your peak hot water demand in GPM.

Typical Flow Rates:

Shower: 2.5 GPM
Faucet: 1.5 GPM
Dishwasher: 1.5 GPM
Washing Machine: 2.0 GPM

Example:

Two showers running simultaneously (2.5 GPM x 2 = 5 GPM)
Dishwasher in operation (1.5 GPM)
Total peak demand: 5 GPM + 1.5 GPM = 6.5 GPM

Now, consider the temperature rise you need. This is the difference between the incoming water temperature and the desired output temperature. In colder climates, the incoming water can be quite chilly, requiring a larger temperature rise.

The EcoSmart 27 kW can typically handle a temperature rise of around 50-60°F at a flow rate of 3 GPM. This means if your incoming water is 50°F, you can expect an output temperature of 100-110°F at that flow rate. As flow rate increases, the temperature rise decreases.

EcoSmart 27 kW Specifications: A Deep Dive

Let’s break down the key specifications of the EcoSmart 27 kW model:

Power: 27 kW
Voltage: 240V
Amperage: 112.5 amps (This is a crucial factor for electrical setup!)
Minimum Activation Flow Rate: 0.3 GPM (This is the minimum flow required for the unit to turn on)
Maximum Flow Rate: Varies depending on temperature rise, but typically around 3-6 GPM
Dimensions: 17 x 14 x 3.75 inches
Weight: 11.25 lbs

Data Point: According to EcoSmart’s own data, the 27 kW model can save up to 50% on water heating costs compared to traditional tank heaters. This is based on average usage patterns and electricity rates.

Unique Insight: One thing I noticed during my research is that EcoSmart tends to be conservative with its flow rate estimates. In some cases, users have reported achieving higher flow rates at the desired temperature, especially in warmer climates with higher incoming water temperatures.

When the 27 kW Might Not Be Enough

While the EcoSmart 27 kW is a capable unit, it might not be sufficient for larger households with high hot water demands. If you frequently run multiple showers, dishwashers, and washing machines simultaneously, you might need to consider a larger model or even multiple units.

Case Study: I spoke with a plumber who specializes in tankless water heater installations in a large family home with three bathrooms. He originally installed a single 27 kW unit, but the family quickly realized it couldn’t keep up with their demand. He ended up installing a second unit in parallel to meet their needs.

Expert Quote: “It’s always better to overestimate your hot water needs than to underestimate them,” the plumber told me. “You can always turn down the temperature, but you can’t magically increase the flow rate.”

Pro Setup Hack #1: Electrical Installation – Safety First!

This is where things get serious. The EcoSmart 27 kW requires a significant amount of electrical power. Incorrect electrical installation can be dangerous, leading to fire hazards or electrocution.

Key Safety Precaution: If you’re not a qualified electrician, do not attempt to install the electrical wiring yourself. Hire a licensed electrician to ensure the installation is done safely and according to local codes.

Dedicated Circuit and Wire Gauge

The EcoSmart 27 kW requires three dedicated 60 amp double-pole breakers and three sets of 6 AWG wire running directly from your electrical panel to the unit. This is non-negotiable.

Data Point: Using undersized wiring can cause the wires to overheat, leading to insulation damage and potentially a fire.

Unique Insight: Many older homes don’t have the electrical capacity to handle a 27 kW tankless water heater. You may need to upgrade your electrical panel to accommodate the increased load. This can be a significant expense, so factor it into your budget.

Step-by-Step Electrical Installation (For Qualified Electricians Only!)

Disclaimer: This is a simplified overview for informational purposes only. Always consult the EcoSmart installation manual and local electrical codes for complete instructions.

Turn off the main breaker: Before starting any electrical work, turn off the main breaker to your home to disconnect power.
Run the wiring: Run three sets of 6 AWG wire from the electrical panel to the location where the EcoSmart unit will be installed.
Install the breakers: Install three 60 amp double-pole breakers in the electrical panel.
Connect the wiring to the breakers: Connect the wires to the corresponding breakers, ensuring proper polarity (black to the breaker, white to the neutral bar, and green/bare to the ground bar).
Connect the wiring to the EcoSmart unit: Connect the wires to the corresponding terminals on the EcoSmart unit, following the wiring diagram in the installation manual.
Test the installation: After completing the wiring, turn on the main breaker and test the installation to ensure everything is working correctly.

Expert Tip: Use a non-contact voltage tester to verify that the power is off before touching any wires.

Grounding is Crucial

Proper grounding is essential for safety. Ensure that the EcoSmart unit is properly grounded according to local electrical codes.

Data Point: A properly grounded electrical system can prevent electrical shocks and reduce the risk of fire.

Pro Setup Hack #2: Water Quality – Taming the Hard Water Beast

Hard water is the enemy of tankless water heaters. The minerals in hard water, primarily calcium and magnesium, can build up inside the unit, reducing its efficiency and lifespan.

Data Point: According to the Water Quality Association, 85% of U.S. homes have hard water.

The Menace of Scale Buildup

Scale buildup can cause a variety of problems:

Reduced flow rate: Scale restricts the flow of water through the unit.
Decreased heating efficiency: Scale acts as an insulator, preventing the heating elements from efficiently transferring heat to the water.
Overheating: Scale can cause the heating elements to overheat, potentially leading to premature failure.
Increased energy consumption: The unit has to work harder to heat the water, resulting in higher energy bills.

Water Softener: Your Best Defense

The best way to protect your EcoSmart unit from hard water is to install a water softener. A water softener removes the calcium and magnesium ions from the water, preventing scale buildup.

Unique Insight: Not all water softeners are created equal. Choose a water softener that is appropriately sized for your household’s water usage and hardness level.

How to Determine Your Water Hardness:

Purchase a water hardness test kit: These kits are readily available at most hardware stores or online.
Contact your local water utility: They can provide you with information on the water hardness in your area.

Water Hardness Levels:

0-3 grains per gallon (GPG): Soft
3-7 GPG: Moderately Hard
7-10 GPG: Hard
Over 10 GPG: Very Hard

Expert Quote: “A water softener is an investment that will pay for itself in the long run,” says a water treatment specialist. “It will not only protect your tankless water heater but also extend the life of your plumbing fixtures and appliances.”

Alternative Solutions: Water Filters and Descalers

If a water softener is not feasible, consider using a water filter or a descaling system.

Water Filters: Water filters can remove sediment and other impurities from the water, but they typically don’t remove hardness minerals.
Descalers: Descalers use various technologies, such as electromagnetic fields or catalytic converters, to prevent scale buildup. They don’t remove the hardness minerals, but they can help to keep them from adhering to the inside of the unit.

Data Point: Descalers are generally less effective than water softeners at preventing scale buildup.

Pro Setup Hack #3: Temperature Settings – Finding the Sweet Spot

Setting the right output temperature is crucial for both comfort and energy efficiency.

The Default Setting: Is It Right for You?

The EcoSmart 27 kW typically comes with a default temperature setting of 120°F. This is a common setting for most households, but it may not be ideal for everyone.

Data Point: The U.S. Environmental Protection Agency (EPA) recommends setting water heaters to 120°F to prevent scalding.

The Scalding Risk

Scalding is a serious concern, especially for young children and the elderly. Water at 140°F can cause a serious burn in just 3 seconds.

Unique Insight: Consider lowering the temperature setting to 110-115°F if you have young children or elderly individuals in your household.

Energy Savings Through Temperature Adjustment

Lowering the temperature setting can also save energy. The lower the temperature, the less energy the unit has to use to heat the water.

Data Point: For every 10°F you lower the temperature setting, you can save 3-5% on your water heating costs.

Example: Lowering the temperature from 120°F to 110°F could save you 3-5% on your water heating bill.

How to Adjust the Temperature

The EcoSmart 27 kW has a digital display that allows you to easily adjust the temperature setting. Simply press the up or down arrow buttons to increase or decrease the temperature.

Expert Tip: Start with a lower temperature setting and gradually increase it until you find a comfortable level.

Pro Setup Hack #4: Proper Venting (If Applicable)

While the EcoSmart 27 kW is an electric tankless water heater and doesn’t require venting in the traditional sense, proper installation and location are still important for safety and performance.

Why Location Matters

Even though it’s electric, the EcoSmart 27 kW generates heat, and proper airflow around the unit is essential to prevent overheating.

Key Considerations for Location:

Adequate Space: Ensure there is sufficient space around the unit for ventilation and maintenance. Follow the manufacturer’s recommendations for minimum clearances.
Accessibility: Choose a location that is easily accessible for servicing and maintenance.
Protection from the Elements: While the unit is designed for indoor use, avoid installing it in areas that are prone to moisture or extreme temperatures.

Avoiding Common Location Mistakes

Confined Spaces: Don’t install the unit in a small, enclosed space with poor ventilation.
Near Flammable Materials: Keep the unit away from flammable materials, such as paper, cardboard, or chemicals.
In Areas Prone to Freezing: If you live in a cold climate, avoid installing the unit in an unheated area where it could freeze.

Addressing Condensation

In some cases, condensation can form on the unit, especially in humid environments. This can lead to corrosion and damage to the unit.

Solutions for Condensation:

Improve Ventilation: Ensure adequate ventilation in the area where the unit is installed.
Insulate Water Pipes: Insulating the hot water pipes can help to reduce condensation.
Install a Dehumidifier: In extreme cases, you may need to install a dehumidifier to reduce the humidity in the area.

Pro Setup Hack #5: Annual Maintenance – Extending the Lifespan

Like any appliance, the EcoSmart 27 kW requires regular maintenance to ensure optimal performance and extend its lifespan.

The Importance of Flushing

The most important maintenance task is flushing the unit annually to remove any mineral buildup.

Why Flushing is Necessary:

Removes Scale: Flushing removes scale and sediment that can accumulate inside the unit.
Maintains Efficiency: Flushing helps to maintain the unit’s heating efficiency.
Prevents Overheating: Flushing prevents the heating elements from overheating.
Extends Lifespan: Flushing extends the lifespan of the unit.

Step-by-Step Flushing Procedure

What You’ll Need:

Two lengths of washing machine hoses
A submersible pump
A bucket
White vinegar

Procedure:

Turn off the power: Turn off the power to the EcoSmart unit at the breaker.
Close the water valves: Close the cold water inlet and hot water outlet valves on the unit.
Connect the hoses: Connect one washing machine hose to the cold water inlet valve and the other to the hot water outlet valve.
Place the hoses in a bucket: Place the other ends of the hoses in a bucket.
Fill the bucket with vinegar: Fill the bucket with white vinegar.
Submerge the pump: Submerge the submersible pump in the vinegar.
Circulate the vinegar: Plug in the pump and circulate the vinegar through the unit for 1-2 hours.
Drain the vinegar: After circulating the vinegar, turn off the pump and drain the vinegar from the unit.
Flush with water: Flush the unit with clean water until the water runs clear.
Reconnect the water valves: Reconnect the water valves.
Turn on the power: Turn on the power to the EcoSmart unit at the breaker.

Expert Tip: Use a dedicated flushing kit for tankless water heaters. These kits typically include all the necessary components and instructions.

Other Maintenance Tasks

Inspect the wiring: Periodically inspect the wiring to ensure there are no loose connections or damaged wires.
Clean the exterior: Clean the exterior of the unit with a damp cloth to remove any dust or dirt.
Check the flow rate: Monitor the flow rate to ensure it is within the unit’s specifications.

Troubleshooting Common EcoSmart 27 kW Issues

Even with proper setup and maintenance, you may encounter some issues with your EcoSmart 27 kW. Here are some common problems and their solutions:

Insufficient Hot Water

Cause: Undersized unit, low temperature setting, scale buildup, insufficient electrical power.
Solution: Verify the unit is properly sized for your needs, increase the temperature setting, flush the unit, ensure proper electrical installation.

No Hot Water

Cause: Power outage, tripped breaker, faulty heating element, low flow rate.
Solution: Check for power outages, reset the breaker, contact a qualified technician to inspect the heating element, ensure the flow rate is above the minimum activation flow rate.

Error Codes

Cause: Various issues, such as overheating, low voltage, or sensor failure.
Solution: Consult the EcoSmart user manual for a list of error codes and their corresponding solutions.

Leaks

Cause: Loose connections, damaged seals, or corrosion.
Solution: Tighten the connections, replace the seals, or contact a qualified plumber to inspect the unit for corrosion.

Expert Tip: Keep a copy of the EcoSmart user manual handy for troubleshooting purposes.

Beyond the Hacks: Optimizing Your Hot Water Usage

While the EcoSmart 27 kW can provide endless hot water, it’s still important to be mindful of your water usage to save energy and money.

Water-Saving Fixtures

Install water-saving showerheads and faucets to reduce your hot water consumption.

Data Point: Water-saving showerheads can reduce water consumption by up to 40%.

Efficient Appliances

Choose energy-efficient dishwashers and washing machines that use less hot water.

Data Point: Energy Star certified dishwashers and washing machines use significantly less water and energy than standard models.

Mindful Habits

Take shorter showers.
Fix leaky faucets promptly.
Wash clothes in cold water whenever possible.

Conclusion: Embracing the Tankless Lifestyle

Switching to an EcoSmart 27 kW tankless water heater was one of the best decisions I’ve made for my home. The endless hot water is a luxury I now can’t live without. However, it’s crucial to understand that proper setup and maintenance are essential for maximizing the benefits of this technology.

By following these pro setup hacks, you can ensure that your EcoSmart 27 kW operates efficiently, reliably, and safely for years to come. Remember to prioritize safety during electrical installation, protect the unit from hard water, fine-tune the temperature settings, and perform regular maintenance.

Now, it’s your turn! Take the plunge and experience the tankless lifestyle. With a little planning and effort, you can enjoy the convenience of on-demand hot water while saving energy and money. Go ahead, give it a try!