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Best Low Nox Water Heaters

Pentair EC462025 MasterTemp 125 125,000 BTU Compact Energy Efficient Swimming Pool and Spa Natural Gas Heater for Small Pools Up to 15,000 Gallons

  • GREAT FOR SMALLER POOLS: Natural gas heater boasts 125,000 BTUs, designed for smaller bodies of water up to 15,000 gallons.
  • COMPACT AND EFFICIENT: Compact design with 82-percent efficiency as compared to larger pool heaters.
  • Quiet operation makes sure not to impose on leisure pool time.
  • THOUGHTFUL, USER-FRIENDLY DESIGN:: Rotating digital display allows for any installation rotation and is easy to read.
  • User-friendly indicator lights allow for simple system operation and monitoring.
  • Corrosion and UV-resistant housing deliver durable, lasting use.
  • SAFETY FEATURES: Water pressure and stack flue sensor for overheat prevention, auto shut-off when the temperature exceeds factory limits, and manual shut-off for servicing.
  • 0.75-inch gas line up to 50 feet from source (not included).
  • Dimensions (L x W x H): 31.5 x 21 x 23 inches.
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Hayward FDXLWPS1930 Water Pressure Switch Replacement for Hayward Universal H-Series Low Nox Pool Heater,Black

  • Fits hayward universal h-series low nox pool heater models h150fdn, h150fdp, h200fdn, h200fdp, h250fdn, h250fdp.
  • Also fits hayward universal h-series low nox pool heater models h300fdn, h300fdp, h350fdn, h350fdp, h400fdn, h400fdp.
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ShineUs Bezel and Keypad Assembly Replacement Compatible with Hayward IDXL2BKP1930 Fit for Select H-Series Heater & H250IDL1，H300IDPL1，H400IDPL2.

  • Fit For Hayward H Series Low Nox Induced Draft Heaters from 2005 to present.
  • Fits the following models only: H250IDL1, H250IDL2, H250IDPL1, H250IDPL2 H300IDL1, H300IDL2, H300IDPL1, H300IDPL2 H400IDL1, H400IDPL1, H400IDPL2.
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Hayward FDXLICB1930 FD Integrated Control Board Replacement Kit for Select Hayward H-Series Pool Heater

  • Fits hayward universal h-series low nox pool heater models h250fdn, h250fdp.
  • Also fits hayward universal h-series low nox pool heater models h300fdn, h300fdp, h350fdn, h350fdp, h400fdn, h400fdp.
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Hayward FDXLHXA1250 Heat Exchanger Assembly Replacement for Hayward H250FD Universal H-Series Low Nox Pool Heater

  • Fits hayward universal h-series low nox pool heater model h250fd.
  • Weight 48.5 pounds. Low NOx Emissions - Meets Clean Air Quality Standards.
  • 2 inch x 2 1/2 inch CPVC Union Plumbing Connections.
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Hayward FDXLBVS1930 Blower Vacuum Switch Replacement for Hayward Universal H-Series Low Nox Pool Heater

  • Fits hayward universal h-series low nox pool heater models h150fdn, h150fdp, h200fdn, h200fdp, h250fdn, h250fdp.
  • Also fits hayward universal h-series low nox pool heater models h300fdn, h300fdp, h350fdn, h350fdp, h400fdn, h400fdp.
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Hayward FDXLIGN1930 FD Ignitor Replacement Kit for Hayward Universal H-Series Low Nox Pool Heater

  • Fits hayward universal h-series low nox pool heater models h150fdn, h150fdp, h200fdn, h200fdp, h250fdn, h250fdp.
  • Also fits hayward universal h-series low nox pool heater models h300fdn, h300fdp, h350fdn, h350fdp, h400fdn, h400fdp.
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Operation Teardrop

  • Consistent hot water when you need it that never runs out.
  • Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.
  • EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters.
  • may be installed on wall or at point of use.
  • EcoSmart tankless electric water heaters are 99% thermal energy efficient.
  • Only heats water when called unlike a tank heater that maintains water temperature even when not being used..
  • 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications.
  • provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature.
  • refer to the sizing guide to select the proper solution.
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Erin Brockovich

  • Consistent hot water when you need it that never runs out.
  • Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.
  • EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters.
  • may be installed on wall or at point of use.
  • EcoSmart tankless electric water heaters are 99% thermal energy efficient.
  • Only heats water when called unlike a tank heater that maintains water temperature even when not being used..
  • 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications.
  • provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature.
  • refer to the sizing guide to select the proper solution.
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Pool School

  • Consistent hot water when you need it that never runs out.
  • Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.
  • EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters.
  • may be installed on wall or at point of use.
  • EcoSmart tankless electric water heaters are 99% thermal energy efficient.
  • Only heats water when called unlike a tank heater that maintains water temperature even when not being used..
  • 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications.
  • provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature.
  • refer to the sizing guide to select the proper solution.
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Generator [Explicit]

  • Consistent hot water when you need it that never runs out.
  • Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.
  • EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters.
  • may be installed on wall or at point of use.
  • EcoSmart tankless electric water heaters are 99% thermal energy efficient.
  • Only heats water when called unlike a tank heater that maintains water temperature even when not being used..
  • 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications.
  • provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature.
  • refer to the sizing guide to select the proper solution.
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Noritz EZTR40NG 40 gal Tank Replacement Indoor Tankless Water Heater 6.6 GPM Standard Vent - Natural Gas

  • Direct replacement for existing 40 gal tank water heater.
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Noritz EZTR40LP 40 gal Tank Replacement Indoor Tankless Water Heater 6.6 GPM (Standard Vent) - Liquid Propane

  • Direct replacement for existing 40 gal tank water heater.
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