Best Electric Heaters for Small to Medium Above Ground Pools

For pool owners with small to medium-sized above-ground pools, adding an electric pool heater can extend the swimming season and provide more comfortable water temperatures. But with so many electric heater options on the market, it can be tricky to determine the right model for your specific pool.

When shopping for the best electric above ground pool heater, key factors to consider include energy efficiency, proper sizing, durability, ease of use, and built-in safety features. By understanding these aspects, you can select a high-performing electric heater that will heat your above-ground pool efficiently and economically.

Choose an Energy Efficient Electric Pool Heater

One of the most important factors when selecting an electric pool heater is energy efficiency . Electric heaters consume a significant amount of energy, so you want one that converts electricity into ample heating capacity while minimizing energy waste.

Pay attention to the Energy Factor (EF) rating, which indicates how much heat is produced per unit of electricity consumed. The higher the EF, the more efficient the electric heater. Look for models with an EF of 90% or above.

More efficient units like heat pumps can slash your heating costs compared to standard electric resistance heaters. Though pricier upfront, their superior efficiency pays off in the long run through lower monthly bills.

Size Matters - Match BTUs to Pool Volume

After efficiency, properly sizing your electric heater is crucial for both performance and cost savings. You want a heater with enough heating capacity (BTUs) to accommodate the volume of water in your above-ground pool.

As a general rule of thumb, your heater should provide 100-150 BTUs per square foot of pool surface area. For example, a 15x30 rectangular above-ground pool has 450 sq ft of surface area. This pool would need a heater with 45,000-67,500 BTUs for optimal performance and efficiency.

An undersized heater leads to frustration, as it must work overtime to reach the set temperature. An oversized heater is also problematic, as the excess capacity gets wasted heating water quickly before shutting off, consuming more energy in the process.

Durability & Construction for Longevity

When installed outdoors and exposed to elements, electric heaters must withstand weather, humidity, and corrosion. Models built with premium materials last longer, saving you from frequent repairs or replacement.

Look for sturdy cabinets made of all-weather composite materials . The heating components themselves should resist rust and wear, so check for stainless steel or CuproNickel heat exchangers .

The heating elements that generate the heat also affect durability. Titanium elements last longer than copper, though copper transfers heat more rapidly. Ultimately titanium is preferred for longevity, but copper offers better heating capacity.

Convenient, User-Friendly Controls

Today's digital electric heaters make it easy to set your desired pool temperature and maintain it with precision. Intuitive controls not only make your life easier but help optimize energy efficiency as well.

Look for a clear digital display that is easy to read. Adjustable digital thermostats allow you to dial in your optimal temp. Advanced units even have built-in diagnostic functions to spot issues before they become problems.

For maximum convenience, some electric heaters include WiFi capabilities and smartphone app integration . This allows you to control the heater remotely and adjust settings from anywhere. Plus you'll get alerts if something is amiss when you're away from home.

Safety Features: Flow Switches, High Limits & More

While today's heaters are designed with multiple safety enhancements, key features to look for include:

• Water flow switch - Prevents overheating by shutting down the heater if insufficient water flow is detected, protecting the unit if the pump stops working.
• High-limit switches - Shut down the heater if the internal components get too hot as a precaution.
• Pressure switches - Detect leaks or blockages in water flow to prevent damage.
• GFCI protection - Prevents electric shock hazards.

Advanced diagnostics also identify problems before they escalate, while weather-resistant components prevent hazards from moisture or storms.

Reviews: Top Electric Pool Heater Picks

Thousands of satisfied pool owners have chosen these top-rated electric heaters for above-ground pools thanks to their combination of value, efficiency, and reliability:

1. FibroPool Electric Spa Heater

Our top overall pick is the FibroPool Electric Spa Heater , which offers several advantages for above-ground pool owners on a budget. This compact, lightweight unit provides rapid heating for pools up to 450 gallons with 5 power settings to fine-tune your energy use.

We appreciate the remote app control, adjustable digital thermostat, and built-in freeze protection for peace of mind. An integrated flow switch provides safety and prevents damage if the pump shuts down. Overall, an exceptional electric heater at a very reasonable price point.

2. EcoSmart Pool Heater

For maximum energy efficiency, the EcoSmart Pool Heater can't be beat. This ultra-efficient model boasts an incredible EF rating of 96% - almost no energy wasted! It uses patented heating technology to minimize costs and reduce your carbon footprint.

Despite being one of the greenest heaters available, it doesn't skimp on features. The all-digital microprocessor offers precise temperature control, while the compact, lightweight design allows easy installation anywhere. Ideal if you already have a heat pump or solar system installed.

3. Hayward H150FDN Heater

Trusted by pool professionals for decades, the workhorse Hayward H150FDN electric heater provides quiet, reliable heating on demand. The super-durable CuproNickel heat exchanger resists corrosion far better than standard copper.

Housed in a weather-proof cabinet, this heater also includes adjustable thermostatic control, enforced water flow, and thermal overload protection for safety. While not as feature-packed as other models, it makes up for it with proven performance and longevity.

Key Considerations for Your Selection

Keep the following factors in mind when choosing the optimal electric pool heater for your above-ground pool:

• Pool size - Choose a heater with proper BTU capacity
• Desired water temperature and usage months
• Local electricity rates - Impact operating costs
• Existing pool filter/pump - Ensure compatibility
• Available space - Check heater dimensions
• Warranty coverage - For protection
• Smart features needed - Digital controls, app access
• Quiet operation - If noise is a concern

Also consider how much you plan to use the pool heater. If only occasionally, you may opt for a budget electric model. For extended daily use, invest in a premium energy efficient heater to lower operating costs.

Adding an electric heater to your above-ground pool provides one of the most affordable and effective ways to increase enjoyment. The right sized and featured electric heater allows you to extend the swimming season and maintain perfectly comfy water temperatures.

Focus on energy efficiency, proper sizing, intuitive controls, and advanced safety features when choosing your electric pool heater. Compact electric heaters are ideal for small to medium above-ground pools. With a top-rated energy efficient electric heater, you can relax in your heated pool for many more months each year.