How long does it take to heat up a 400 gallon hot tub?

For a 400 gallons pool, an 3KW pool heater takes about 3.5h to raise the temperature by 41 degrees ℉. 7.3h to raise the temperature by 50 degrees ℉.

What is the largest size pool it works on?

Hello there, capacity between 250 and 500 gallons is appropriate. Although pools over 500 gallons are available, but the pool heater may not achieve effective heating.

What gallon per hour pump is recommended?

Hi there, it is recommended to use a 1/2 hp water pump with the pool heater.

Will the red light go on if there's no water in it? I want to test it before I run water through it

Hello there, we recommend that you run the water first before starting the pool heater, if you do not run the water to open the heater, the light will be on, but it will dry out. It is not conducive to the long-term use of the item.

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💧 Dive into Comfort with Mxmoonant!

SAFETY FIRST - Equipped with dry burning and high temperature protection for peace of mind.
DURABLE DESIGN - Constructed with high-quality materials for long-lasting performance.
VERSATILE COMPATIBILITY - Ideal for pools up to 500 gallons, making it perfect for any backyard oasis.
HARDWIRED FOR PERFORMANCE - Designed for optimal heating efficiency with professional installation.
EFFORTLESS TEMPERATURE MANAGEMENT - Self-heating technology ensures your spa is always at the perfect temperature.

The Mxmoonant Pool Heater is a powerful 3KW electric heater designed for hot tubs, spas, and swimming pools up to 500 gallons. It features advanced self-heating technology, ensuring optimal water temperature while prioritizing safety with dry burning and high temperature protection. Hardwired for enhanced performance, this heater is a must-have for any outdoor relaxation space.

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