The 5 Best large Stocktank heaters (2023 reviews)

The api stock tank is long-lasting, rigid and fits well with your regular usage like a dream. This is an industrial size heater for hundred(s) gallon ponds. It is designed to keep stock tanks from freezing over. They keep the koi pond open and the pump goes along fine, throughout the freezing months. It is super simple to secure these, and almost free. The unit is compact as desired. They are very durable and long-lasting. It will not keep even a stock tank at temperatures warm enough for swimming.

Why We Like This:

To protect your pond liner and/or other plastic parts
Good brand reputation

Best For livestock: Kh pet products large Stocktank Heater

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The kh pet products large stocktank heater's material feels more premium than its price would suggest. This is a great heater for a stock water tank. It works well, the cord has to warm up to float right. This heater works great to keep a 300 gallon tank ice free in sub-zero temperatures. The deicer is thermostatically controlled to keep the body of water from freezing. It is available in 5 wattages that are designed for your energy efficiency. It’s on or off depending on water temp.

It is perfect for a stock water tank, not a septic tank. This reduces the savings from moving down to a lower wattage unit.

Why We Like This:

Hangs with the weather, only turning on when needed
Works great until it shorts out
Very nice for a low wattage de-icer

Best For cow trough: Allied Precision industries large Stocktank Heater

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The allied precision industries large stocktank heater is the best reliable heater on the market today. It is simply a pond (small pond) or horse waterer de icer. It protects the trough itself from burning. It is 1500 watts and with the protective attached is more than a foot in diameter. The warm water will need to Circulate Through The Pump To Keep The Inner Lines From Freezing. The thermostat feature is therefore a safety feature and cannot be removed.

This tank heater turns on when the water temp drops to 40 degrees, and keeps it at that temperature. It is well below freezing then the water container should be insulated with only the top exposed to the environment and yes it can keep it from freezing-this heater only turns on below 40 deg F. It protects the trough itself from burning. The tank water needs to be at least 4 " deep to cover this tank heater.

Why We Like This:

A good tank heater even for alaskan winters
Keeps water at the right temperature
Keeps the water at a constant temperature and never freezes

Best For Fish: API large Stocktank Heater

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The api large stocktank heater is suitable and reliable and fits well with your daily usage. This heater delivers 1500 watts of deicing. It only keeps the water from freezing so you don’t kill the fish by suffocating them. It protects the edge of the pond/liner. It has a 6' anti-rub power cord. It will heat water to over 180 degrees.

This is exactly what you need if you live stock to keep water in freezing temps. It is a customer-driven manufacturer and international distributor of farm, ranch, and pet products.

Why We Like This:

Keeps entire stock tank ice free
Delivers what they promise

Best For Birdbath: Comincia large Stocktank Heater

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Not everyone likes to purchase heater for their daily purpose, but the comincia large stocktank heater would be an anomoly. This heater keeps the birdbath ice free throughout the winter. It is ideal to make winter on the farm easier. It is made of cast aluminum with a teflon coating that helps reduce mineral buildup, improve corrosion resistance and extend the life of the unit. It has a larger surface area and higher power, which greatly improves the efficiency of deicing.

This heater only comes on when the water temp hits 35 degrees, so you never waste electricity. It is a big plus that it listed it as thermostatically controlled so it only comes on near freezing temps. It comes with a teflon coating, improve its corrosion resistance, and it keeps the de-icer working efficiently. It is well made/heavy duty cord.

Why We Like This:

Stops freezing water in cold weather
Able to keep five gallon birdbath ice free in single digit temperatures
Keeps water from freezing very easy to use