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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


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.