Best Pool Heaters

Hayward H250FDN Universal H-Series 250,000 BTU Pool and Spa Heater, Natural Gas, Low Nox

Raypak 009217 Pr266Aenc50 - 266000 BTU Electronic NG Heater

WECIYGG Mini Swimming Pool Heat Pump 12000 BTU for Above Ground Pools, 3.5 kW Electric Pool Heater with Titanium Heat Exchanger, 110V 60Hz, Up to 2000 Gallons

PENTAIR MASTER TEMP POOL HEATER NATURAL LOW NOx 200BTU

RayPak 105,000 BTU Propane Above Ground Pool Heater (106A)

GESAIL 1500W Bucket Heater, Rust Proof Built in Temperature Controller and Fuse Immersion Water Heater, Heats 5 Gallons of Water in Minutes with Auto Shutoff, for Home Outdoor Camping and Winter Job

RayPak Crosswind 50,000 BTU Heat Pump (On/Off Model)

Immersion Water Heater, with 304 Stainless Steel Cover Intelligent Temperature Control and Digital LCD Thermometer Portable Bucket Heater Heat 5 Gallons of Water in Minutes 1500W

1000W Immersion Heater, Gesail Bucket Water Heater with Heating Element, Submersible Heater with Thermostat and Auto Shutoff Protection, Perfect for Home Travel and Winter Job

2000W Immersion Pool Heater, Pool Electric Heater with Timer and Digital LCD Thermometer, Pool Heater for Mini Inflatable Pool Bathtub Bucket to Heat 5 Gallons of Water in Minutes