b,line,m,w,lo,hi,unit,stated,note,src,read
Aqueon,Heater wattage guidelines,50 W,50,5,20,gal,50 Watts 5-20 Gallons,Aqueon's chart; its cold-weather article gives 5 W per gallon up to 55 gallons,https://www.aqueon.com/-/media/project/oneweb/aqueon/files/us/educational/aq_heater_wattage_chart.pdf,2026-10-24
Aqueon,Heater wattage guidelines,100 W,100,15,40,gal,100 Watts 15-40 Gallons,Aqueon's chart; its cold-weather article gives 5 W per gallon up to 55 gallons,https://www.aqueon.com/-/media/project/oneweb/aqueon/files/us/educational/aq_heater_wattage_chart.pdf,2026-10-24
Aqueon,Heater wattage guidelines,150 W,150,30,55,gal,150 Watts 30-55 Gallons,Aqueon's chart; its cold-weather article gives 5 W per gallon up to 55 gallons,https://www.aqueon.com/-/media/project/oneweb/aqueon/files/us/educational/aq_heater_wattage_chart.pdf,2026-10-24
Aqueon,Heater wattage guidelines,200 W,200,50,75,gal,200 Watts 50-75 Gallons,Aqueon's chart; its cold-weather article gives 5 W per gallon up to 55 gallons,https://www.aqueon.com/-/media/project/oneweb/aqueon/files/us/educational/aq_heater_wattage_chart.pdf,2026-10-24
Aqueon,Heater wattage guidelines,300 W,300,65,90,gal,300 Watts 65-90 Gallons,Aqueon's chart; its cold-weather article gives 5 W per gallon up to 55 gallons,https://www.aqueon.com/-/media/project/oneweb/aqueon/files/us/educational/aq_heater_wattage_chart.pdf,2026-10-24
Eheim,thermocontrol,3611 thermocontrol 25,25,5.2,6.6,gal,5.2 - 6.6 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Eheim,thermocontrol,3612 thermocontrol 50,50,6.6,15.8,gal,6.6 - 15.8 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Eheim,thermocontrol,3613 thermocontrol 75,75,15.8,26.4,gal,15.8 - 26.4 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Eheim,thermocontrol,3614 thermocontrol 100,100,26.4,39.6,gal,26.4 - 39.6 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Eheim,thermocontrol,3615 thermocontrol 125,125,39.6,53,gal,39.6 - 53 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Eheim,thermocontrol,3616 thermocontrol 150,150,53,79,gal,53 - 79 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Eheim,thermocontrol,3617 thermocontrol 200,200,79,106,gal,79 - 106 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Eheim,thermocontrol,3618 thermocontrol 250,250,106,159,gal,106 - 159 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Eheim,thermocontrol,3619 thermocontrol 300,300,159,264,gal,159 - 264 US gal,,https://eheim.com/media/pdf/ae/a4/2e/3611_3619_thermocontrol.pdf,2026-10-24
Hygger,ETL submersible heater (HG998),50 W,50,,15,gal,50W for Tank up to 15 Gal,,https://www.hygger-online.com/product/hygger-etl-certification-aquarium-heater/,2026-10-24
Hygger,ETL submersible heater (HG998),100 W,100,,30,gal,100W for Tank up to 30 Gal,,https://www.hygger-online.com/product/hygger-etl-certification-aquarium-heater/,2026-10-24
Hygger,ETL submersible heater (HG998),200 W,200,,65,gal,200W for Tank up to 65 Gal,,https://www.hygger-online.com/product/hygger-etl-certification-aquarium-heater/,2026-10-24
Hygger,ETL submersible heater (HG998),300 W,300,,80,gal,300W for Tank up to 80 Gal,,https://www.hygger-online.com/product/hygger-etl-certification-aquarium-heater/,2026-10-24
Hydor,Theo,Theo 25 W,25,2.6,6.6,gal,"25 W, recommended for aquariums from 10 to 25 litres",Hydor states litres; gallons are our conversion (1 US gal = 3.785 L),https://hydor.com/products/theo,2026-10-24
Hydor,Theo,Theo 50 W,50,5.3,13.2,gal,"50 W, recommended for aquariums from 20 to 50 litres",Hydor states litres; gallons are our conversion (1 US gal = 3.785 L),https://hydor.com/products/theo,2026-10-24
Hydor,Theo,Theo 100 W,100,13.2,26.4,gal,"100 W, recommended for aquariums from 50 to 100 litres",Hydor states litres; gallons are our conversion (1 US gal = 3.785 L),https://hydor.com/products/theo,2026-10-24
Hydor,Theo,Theo 150 W,150,23.8,39.6,gal,"150 W, recommended for aquariums from 90 to 150 litres",Hydor states litres; gallons are our conversion (1 US gal = 3.785 L),https://hydor.com/products/theo,2026-10-24
Hydor,Theo,Theo 200 W,200,26.4,52.8,gal,"200 W, recommended for aquariums from 100 to 200 litres",Hydor states litres; gallons are our conversion (1 US gal = 3.785 L),https://hydor.com/products/theo,2026-10-24
Hydor,Theo,Theo 300 W,300,52.8,79.3,gal,"300 W, recommended for aquariums from 200 to 300 litres",Hydor states litres; gallons are our conversion (1 US gal = 3.785 L),https://hydor.com/products/theo,2026-10-24
Finnex,HMA titanium,HMA 50 W,50,10,20,gal,50W 10-20 Gallons,,https://www.finnex.net/finnex-titanium-aquarium-heater-hma-series,2026-10-24
Finnex,HMA titanium,HMA 100 W,100,20,30,gal,100W 20-30 Gallons,,https://www.finnex.net/finnex-titanium-aquarium-heater-hma-series,2026-10-24
Finnex,HMA titanium,HMA 150 W,150,30,60,gal,150W 30-60 Gallons,,https://www.finnex.net/finnex-titanium-aquarium-heater-hma-series,2026-10-24
Finnex,HMA titanium,HMA 200 W,200,60,80,gal,200W 60-80 Gallons,,https://www.finnex.net/finnex-titanium-aquarium-heater-hma-series,2026-10-24
Finnex,HMA titanium,HMA 300 W,300,80,100,gal,300W 80-100 Gallons,,https://www.finnex.net/finnex-titanium-aquarium-heater-hma-series,2026-10-24
Finnex,HMA titanium,HMA 500 W,500,100,120,gal,500W 100-120 Gallons,,https://www.finnex.net/finnex-titanium-aquarium-heater-hma-series,2026-10-24