Jandy JXi / JXiQ Gas Pool & Spa Heater
Excellent — but dealer-only (an online buy = zero warranty) — The most compact gas heater made — a 2'×2' footprint — and, in the JXiQ, the smartest: built-in iAquaLink automation, Bluetooth diagnostics, and a 5-year heat-exchanger warranty when installed with Jandy's factory VersaFlo. It is genuinely one of the best gas heaters you can buy. We list it as editorial-only for one reason, and it's the sharpest example of this whole post's thesis: Jandy's warranty flatly 'does not apply to… products purchased through the Internet.' Buy it online and you own an excellent heater with zero coverage. So it's the pick you buy through a dealer, or not at all — which is exactly why there's no buy button on this card.
Specs
| Flow rate | 30–100 GPM |
| BTU | 200K / 260K / 400K |
| Heat exchanger | Cupro-nickel (Dura-Glas) |
| Efficiency | ~84% thermal |
| Warranty (online) | VOID — 'does not apply to… products purchased through the Internet' |
| Owner rating | Editorial — no rated online buy path |
| Max pool size | ~10,000–25,000+ gal by BTU |
| Fuel | Natural gas / propane |
| Model | JXi |
Pros
- Smallest footprint of any gas heater — a 2'×2' unit that fits where others can't
- JXiQ adds built-in iAquaLink automation + Bluetooth diagnostics — the smartest gas heater
- Up to a 5-year heat-exchanger warranty (through a dealer, with factory VersaFlo)
Cons
- Warranty is VOID on ANY online purchase — the sharpest channel trap in the category
- Worth buying only through an authorized Jandy dealer with professional install
- No owner-rated online buy path we can responsibly recommend
FAQ
Who is the Jandy JXi / JXiQ Gas Pool & Spa Heater for?
You want the smallest, smartest gas heater made and you're buying it the RIGHT way — through a Jandy dealer with professional install. Do NOT buy this one online: Jandy voids the warranty on any internet purchase outright, so an Amazon JXi is an excellent heater with zero coverage.
What is the warranty on the Jandy JXi / JXiQ Gas Pool & Spa Heater?
VOID — 'does not apply to… products purchased through the Internet'
Warranty
VOID — 'does not apply to… products purchased through the Internet' · you are buying this direct from Jandy
This Jandy Limited Warranty does not apply to Jandy branded products purchased through the Internet or other e-commerce platforms, with the exception of Jandy branded valves less than three (3) inches in diameter, parts, and pool product accessories. … This warranty applies only to products installed and serviced by a contractor who is licensed and qualified in pool equipment by the jurisdiction in which the product will be installed.
Jandy’s own warranty document · read
Read it yourself: Jandy warranty document · we read it . Terms change without announcement, so treat this as a dated snapshot. How warranty works by buy path →
✓ Safety: no active recall — No active CPSC recall found (checked August 2026).
Size your pool first → ·All pool gear →
Data last verified: —. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.