Quick answer: Jandy and Hayward both make solid gas heaters and heat pumps, but the comparison plays out differently on each side. On gas heaters, Jandy wins on confirmed price — the JXi400N runs about $3,999 versus the Hayward Universal H400FDN’s current $4,600-$5,100 (per Home Depot, Walmart, and PST Pool Supplies listings), both at 400,000 BTU and roughly 84% efficiency. On heat pumps, the matchup is genuinely uncertain: Jandy’s JE2500T is priced by dealer quote only, so its estimated $4,200-$4,600 (based on comparable Hayward/Pentair units) can’t be verified against Hayward’s openly-listed HeatPro HP21405T at $6,500-$7,000. Pick Jandy for the cheaper, confirmed gas heater or if you already run AquaLink automation; pick Hayward if you want to see an actual heat-pump price online before you commit.

Jandy (a Fluidra brand, the same parent as Zodiac) and Hayward both sell full residential gas-heater and heat-pump lineups, and both integrate with their own whole-pool automation systems. The catch: only one of these brands tells you what its heat pump costs before you call a dealer. Here’s how they actually compare.

Jandy vs Hayward at a glance

FactorJandyHayward
Flagship gas heaterJXi400N — ~$3,999Universal H400FDN — ~$4,600-$5,100
Flagship heat pumpJE2500T, 6.2 COP — price by quote onlyHeatPro HP21405T, COP ~5.7 — ~$6,500-$7,000
Heat pump pricingNot published — dealer quote requiredListed openly on Amazon and big-box sites
AutomationAquaLink / iAquaLink (Alexa, Google Assistant)OmniX (app-based, no advertised voice control)
Service/parts networkSmaller, dealer-centricVery common, widest network

Gas heaters: JXi400N vs Universal H400FDN

Both flagship gas heaters are rated at 400,000 BTU and land around 84% thermal efficiency, so they’ll heat a large in-ground pool at essentially the same speed. Price and fit are what actually separate them:

For most straightforward gas-heater replacements, Jandy’s confirmed lower price makes it the easier value pick; Hayward earns its premium mainly through salt-water durability and easier local repairs. See our best Jandy pool heater guide for the smaller JXi260, and our best gas pool heater roundup for how both stack up against Pentair and Raypak.

Jandy JXi400N Natural Gas Heater (400,000 BTU)

Best confirmed gas price · 84% thermal efficiency · ~$3,999
  • Fits the same 2' x 2' pad as a discontinued MasterTemp or Max-E Therm — no re-plumbing on most replacements.
  • AquaLink and iAquaLink automation-ready out of the box.
Check price on Amazon →

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Hayward Universal H400FDN (Gas)

Salt-pool option, widest service network · 400,000 BTU · ~$4,600-$5,100
  • 84% efficient, 400,000 BTU, easy to find a local technician.
  • Cupro-nickel exchanger option handles salt pools.
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Heat pumps: JE2500T vs HeatPro — a price comparison you can’t fully verify

This is where the two brands diverge structurally, not just on numbers. Hayward publishes its HeatPro HP21405T price openly on Amazon and other major retailers — currently $6,500-$7,000 for the titanium-microchannel model at a COP around 5.7. Jandy does the opposite: per Jandy’s own dealer network, the JE2500T (119,000 BTU, 6.2 COP, titanium exchanger) isn’t listed with a retail price anywhere, and most sites show “call for price” and route buyers to an AquaLink-authorized dealer instead. The $4,200-$4,600 figure quoted for it — here and on our own best Jandy pool heater page — is an estimate based on comparable Hayward and Pentair units at the same BTU/COP class, not a confirmed number.

That matters for a straight price comparison: if the estimate holds, Jandy’s JE2500T would undercut the HeatPro by $1,900-$2,800 while posting a higher COP (6.2 vs ~5.7). But you can’t verify that the way you can with Hayward’s listed price — you’d need an actual dealer quote first. See our pool heating cost guide for what the COP difference means in monthly electricity cost either way.

Hayward HeatPro HP21405T (Heat Pump)

Confirmed price, titanium exchanger · COP ~5.7 · ~$6,500-$7,000
  • 140,000 BTU, COP ~5.7, titanium exchanger.
  • Price listed openly — no dealer quote needed to compare.
Check price on Amazon →

Both heaters tie into a whole-pool automation panel rather than offering built-in app control on their own — see our pool heater automation guide for how every brand’s system actually works. Jandy’s AquaLink (via the iAquaLink app) is the one named feature that stands out here: it supports Amazon Alexa and Google Assistant voice commands for basic tasks like setting the spa temperature. Hayward’s OmniX app focuses on phone-based scheduling and remote monitoring and doesn’t advertise voice-assistant support as a headline feature. If voice control specifically matters to you, that tips toward Jandy — otherwise the two systems cover the same core ground.

The bottom line

Buy Jandy if you want the cheaper, confirmed-price gas heater, you’re willing to call a dealer for a heat-pump quote, or you specifically want AquaLink’s Alexa/Google Assistant voice control. Buy Hayward if you want every price listed openly before you buy — especially on the heat-pump side, where Jandy simply won’t tell you a number online — or you want the wider bench of local service technicians. Weighing a third brand? Our Hayward vs. Pentair and Raypak vs. Hayward comparisons cover the other two major matchups, and Raypak vs. Pentair rounds out every pair among the four brands this site covers in depth. Our best gas pool heater roundup lines up all four brands’ natural-gas models by BTU and price, and a fitted pool heater cover is a cheap way to protect either cabinet between uses. For a full warranty and price-tier breakdown across every brand on this site, see our pool heater brands compared guide.