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OK so its time to replace my 15 year old heater. A few years back we converted to SW. Should we get a heater with a cupro-nickel heat exchanger, or is standard copper OK from a corrosion/longevity perspective?
16x36 IG vinyl, Watermaid SW system running at 4000-5000 ppm
The current consensus here is that the Hayward Universal is the best choice -- not perfect, but the best alternative.
Natural gas models:
- Hayward H400FDN Universal H-Series Low Nox 400,000-BTU Natural Gas Pool Heater
- Hayward H350FDN Universal H-Series Low Nox 350,000-BTU Natural Gas Pool Heater
- Hayward H300FDN Universal H-Series Low Nox 300,000-BTU Natural Gas Pool Heater
- Hayward H250FDN Universal H-Series Low Nox 250,000-BTU Natural Gas Pool Heater
- Hayward H200FDN Universal H-Series Low Nox 200,000-BTU Natural Gas Pool Heater
- Hayward H150FDN Universal H-Series Low Nox 150,000-BTU Natural Gas Pool Heater
Propane models:
- Hayward H400FDP Universal H-Series Low Nox 400,000-BTU Propane Pool Heater
- Hayward H350FDP Universal H-Series Low Nox 350,000-BTU Propane Pool Heater
- Hayward H300FDP Universal H-Series Low Nox 300,000-BTU Propane Pool Heater
- Hayward H250FDP Universal H-Series Low Nox 250,000-BTU Propane Pool Heater
- Hayward H200FDP Universal H-Series Low Nox 200,000-BTU Propane Pool Heater
- Hayward H150FDP Universal H-Series Low Nox 150,000-BTU Propane Pool Heater
Hayward Universal product page