Pool Heater
Options
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This proposal outlines two heater options for your pool — the tried-and-true Universal H-Series you currently have, and the all-new Universal HC Series. Both are Hayward's best. Review the options below and let us know which direction you'd like to go.
You currently have a Hayward Universal H-Series heater. A like-for-like H-Series replacement drops right in — same connections, same footprint, no surprises. The HC Series is Hayward's newer platform and offers some upgrades, but requires a certified HVAC technician to reconnect the black pipe gas line as part of the install. Details noted on each option below.
The H250FDN delivers 250,000 BTU of reliable, fast-heating power for pools up to approximately 15,000 gallons. This is the same platform you already have — it drops into your existing pad, connects to your existing gas line, and your plumbing lines up without modification. Proven reliability with 20+ years of field history behind it.
| Model | H250FDN |
| BTU Output | 250,000 BTU/hr |
| Fuel Type | Natural Gas |
| Ignition | Electronic — no pilot light |
| Heat Exchanger | Cupro-Nickel (standard) |
| Thermal Efficiency | 84% |
| Draft Type | Forced Draft (blower-assisted) |
| Suitable Pool Size | Up to ~15,000 gallons |
| Automation | OmniLogic / ProLogic compatible |
| Warranty | 3-year warranty — parts & labor |
If you want a clean, straightforward replacement with no added complexity — this is it. Same heater, zero surprises on install day. The 3-year parts and labor warranty gives you peace of mind, and the cupro-nickel heat exchanger means this unit is built to last well past that.
The H400FDN steps up to 400,000 BTU — the right call if you want faster heat-up times, have a larger pool, or if your current heater ever felt like it was working harder than it should. More BTU means the water gets to temp faster and stays there with less run time on cooler nights.
| Model | H400FDN |
| BTU Output | 400,000 BTU/hr |
| Fuel Type | Natural Gas |
| Ignition | Electronic — no pilot light |
| Heat Exchanger | Cupro-Nickel (standard) |
| Thermal Efficiency | 84% |
| Draft Type | Forced Draft (blower-assisted) |
| Suitable Pool Size | Up to ~25,000+ gallons |
| Automation | OmniLogic / ProLogic compatible |
| Warranty | 3-year warranty — parts & labor |
If you've ever felt like your current heater was slow to heat or struggled on colder days, the 400K is the answer. Same drop-in install as the 250K — no HVAC contractor, no extra work — just significantly more heating power.
The HC Series is Hayward's next-generation heater platform — smaller footprint, smarter controls, and built for the future. The HDF275 delivers 275,000 BTU in a compact 21"×21" cabinet with zero wall clearance. Everything is accessed from the top with a single fastener, and the dual-fuel design means it runs on natural gas or can be converted to propane in the field.
| Model | HDF275 |
| BTU Output | 275,000 BTU/hr |
| Fuel Type | Dual Fuel — Natural Gas or Propane |
| Cabinet Size | 21" × 21" — industry's smallest footprint |
| Wall Clearance | Zero — can be placed against back wall |
| Heat Exchanger | Cupro-Nickel (standard) |
| Controls | OmniX embedded — app + remote ready |
| Access | Top-access only — single fastener |
| Condensate Management | Built-in drain system |
| Warranty | 3-year warranty — parts & labor |
The HC Series is where Hayward is going — newer platform, smarter controls, tighter footprint. That said, it does require a certified HVAC company to reconnect your black pipe gas line — see the note below.
Because the HC Series uses a different gas inlet configuration than your current H-Series, a certified HVAC technician will need to reconnect and inspect the black pipe gas line as part of this installation. Blue Bottom Pools handles all pool plumbing and electrical — you'll need to coordinate the gas side with a licensed HVAC company. We're happy to help you get that scheduled.
The HDF400 is the HC Series flagship — 400,000 BTU in the same compact 21"×21" cabinet. Hayward packed full-size heating power into the smallest footprint available anywhere in the industry. This is the most powerful, most capable heater Hayward makes for residential pools, with the most advanced controls and connectivity of either line.
| Model | HDF400 |
| BTU Output | 400,000 BTU/hr |
| Fuel Type | Dual Fuel — Natural Gas or Propane |
| Cabinet Size | 21" × 21" — smallest 400K BTU heater available |
| Wall Clearance | Zero — can be placed against back wall |
| Heat Exchanger | Cupro-Nickel (standard) |
| Controls | OmniX embedded — app + remote ready |
| Integral Water Bypass | Yes — maintains correct flow through heat exchanger |
| Condensate Management | Built-in drain system |
| Warranty | 3-year warranty — parts & labor |
If you want the best Hayward makes — this is it. 400K BTU, smallest footprint available, full OmniX smart controls, dual fuel capability. The HVAC reconnection is the only extra step — and once that's done, you're set for years.
Same as the HDF275 — a certified HVAC technician will need to reconnect and inspect the black pipe gas line. Blue Bottom Pools handles all pool plumbing and electrical. We can help coordinate the HVAC side if needed.
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›Removal and disposal of your existing heater — we take the old unit away, nothing left for you to deal with
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›New heater installation — all pool plumbing connections, electrical, and startup by Blue Bottom Pools
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›System test and temperature verification — we don't leave until the heater is firing and your water is climbing
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›3-year warranty — parts and labor — full coverage on all heater components, no gotchas
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Questions? Ready to move forward?
Pick Your Option —
We'll Handle the Rest
Reply to this email or give us a call with your selection and we'll get the heater ordered and installation scheduled. 50% deposit locks in your date.
📞 Call (570) 592-5988