Limited-time Discount
I18n Error: Missing interpolation value "end_date" for "Ends on {{ end_date }}"

Pool Heaters & Heat Pumps

Varminpool pool heat pumps and electric pool heaters keep your pool warm through every swim season, with WiFi smart control, inverter technology, and a titanium heat exchanger on every model. Find the right unit for your pool from our above ground pool heaters for backyard pools to inground pool heaters for larger residential pools.

Free US Shipping, 30-Day Returns and 1-Year Warranty

Shop Pool Heaters and Heat Pumps with Energy-Saving Performance

Don't let cold water cut your swim season short. Whether it's a sunny morning, a breezy evening, or a cool weekend in spring, Varminpool pool heaters keep your water at the perfect temperature for every swim. From modernized units to energy-saving inverter models, we offer WiFi-controlled, smart-setting, and cost-effective products built for everyday pool owners.

With key features like compact designs, easy setups, and compatibility with both above-ground and in-ground pool systems, our heaters are perfect for relaxing swim sessions, family pool days, or hosting weekend gatherings. From basic models for smaller pools to advanced inverter heat pumps for larger residential setups, every Varminpool unit is built to deliver reliable warmth season after season.

Packing technology, savings, quality, and value into one smart deal, our pool heaters and heat pumps are your go-to choice for modern pool systems. Don't just extend your swim season, enjoy it all year round with Varminpool.

Find the Right Pool Heater for Your Pool Size

Varminpool Pool Heaters: Sized Right and Heated Right. From small backyard pools to large residential setups, choosing the right heater starts with understanding your pool. Pool volume, climate, daily usage, and installation space all influence which heater fits your setup best.

At Varminpool, our range of heat pumps accommodates every pool size — from compact units for pools up to 5,000 gallons, to powerful inverter heaters designed for pools over 30,000 gallons. Whether you need a small unit that plugs into a standard outlet or a heavy-duty inverter model for year-round use, we have the right fit.

Sizing Your Pool Heater by Gallon Capacity

Match your pool's size to the right BTU range:

  • Pools up to 5,000 gallons → 16,000 - 20,000 BTU
  • Pools 5,000 - 10,000 gallons → 25,000 - 35,000 BTU
  • Pools 10,000 - 15,000 gallons → 40,000 - 55,000 BTU
  • Pools 15,000 - 20,000 gallons → 55,000 - 70,000 BTU
  • Pools 20,000 - 30,000 gallons → 85,000 - 110,000 BTU
  • Pools 30,000+ gallons → 120,000+ BTU

Live in a cooler climate or swim into the shoulder months? Size up one tier for faster heating and better efficiency.

Voltage and Installation

The V5 (16,000 BTU) runs on a standard 120V outdoor outlet, no electrician needed. Every other Varminpool model runs on 240V and requires a dedicated circuit, so plan for a licensed electrician if you're sizing up.

Get three-fold benefits of cost, convenience, and comfort with Varminpool. Explore our full range of pool heat pumps and electric heaters built for every pool size.

Top-Rated Pool Heaters with WiFi Smart Control and Inverter Technology

More Warmth. Smarter Savings. Easy Control.

Why settle for outdated pool systems that run up your electricity bill? With Varminpool pool heat pumps, you spend less and swim more. Our collection of modern inverter heat pumps and electric pool heaters adapts to your pool size, usage pattern, and climate while delivering consistent water temperatures and low operational costs.

Every Varminpool heater comes packed with features designed for modern pool owners:

WiFi Smart Control

Adjust temperature, set schedules, and monitor your heater from your phone, anywhere through the Varminpool app, compatible with both iOS and Android.

Full Inverter Technology

Modulates power output for quieter operation and 30–50% lower running costs versus older fixed-speed units, with whisper-quiet 48 dB operation.

Titanium Heat Exchanger

Resists corrosion in both freshwater and saltwater pools, extending unit lifespan to 10–15 years with proper maintenance.

Universal Compatibility

Works with existing pool plumbing, standard pump systems, and both above-ground and in-ground setups for straightforward installation.

Varminpool pool heaters turn every season into a swim season. Packing affordable, energy-efficient, and high-performing units, we deliver long-term savings and value to homeowners across the US. Whether you're heating a 5,000-gallon backyard pool or a 40,000-gallon inground pool, Varminpool keeps your water warm and swim-ready year after year.

Pay less, heat faster, enjoy longer, and swim more with the best pool heat pumps for residential pools.

Contact us to consult with an expert. Our specialists will help you choose the right pool heater based on your pool size, location, and how you plan to use it.

How big a swimming pool heater do I need?

Match the heater's BTU to your pool size in gallons. As a starting point:
16,000–20,000 BTU for pools up to 5,000 gallons, 25,000–35,000 BTU for
5,000–10,000 gallons, 40,000–55,000 BTU for 10,000–15,000 gallons,
55,000–70,000 BTU for 15,000–20,000 gallons, 85,000–110,000 BTU for
20,000–30,000 gallons, and 120,000+ BTU for pools over 30,000 gallons.
Size up one tier if you're in a cooler climate or swim into the shoulder months.

How long does it take to heat a pool?

A correctly-sized heat pump warms an average pool by 1–2°F per hour. For
a 10,000-gallon pool starting at 65°F, expect 24–36 hours to reach 85°F.
A pool cover cuts that time by 30–50% by reducing evaporative heat loss.

How long does a pool heater or heat pump last?

Depending on the heater type, the lifespan varies. A traditional gas or electric pool heater can last 5–10 years, while a heat pool pump has a lifespan of 10–15 years or more. 

How quickly can I get my pool heater delivered?

You can expect your pool heater to be delivered in about 5–7 days on average, combining both processing and shipping time.

Can I control my swimming pool heater from my phone?

Yes. Our smart swimming pool heaters and Wi-Fi-enabled pool heat pumps are compatible with both iOS and Android. You can turn your heater on or off, adjust the temperature, and track updates with our remote pool heater control.

Can I set custom temperature schedules with my heater?

Absolutely. With smart pool thermostats and dual digital control heaters, you can set specific temperatures to optimize energy use, pool heater cost, and comfort.
  • Free Shipping
    Free shipping for all US Mainland orders
  • 30-Day Return
    Returns accepted within 30 days.
  • WELL TRUSTED
    Over 100k customers
  • Customer Support
    Tel: (978)7366880