Jandy Pool Heater Specs — BTU Ratings & Efficiency Table
Jandy pool heater datasheet summary: model-by-model BTU ratings, efficiency and COP from official sources, linked line by line — with sizing context against the industry formula.
Quick answer
Jandy's published heater lineup covers 2 models across 1 product line (gas), spanning 250,000 to 399,000 BTU/hr. Gas models are rated by fuel input — divide by the stated efficiency (82% federal floor at minimum) for the heat actually delivered. Check any model against your pool's requirement with the BTU calculator.
Manufacturer datasheet · 2026-10-31Jandy heater lineup at a glance
Jandy keeps the lineup focused on a single fuel path rather than spreading across every category — the table below is short enough to compare against your required BTU in one read.
Every figure below traces to an official Jandy source (linked per table); anything the sources don't state is marked "(to be verified)" rather than guessed. To see whether a given BTU rating fits your pool, run the BTU calculator first.
Jandy JXi / JXiQ (Natural gas)
Four input classes 200k-400k BTU/hr; ultra-compact 2'×2' pad footprint; JXiQ is the current-generation successor to JXi.
| Model | Rated BTU/hr | Efficiency / COP | Notes |
|---|---|---|---|
| JXI400N | 399,000 input | 84% | 399,000 BTU/hr input, 84% thermal efficiency, copper heat exchanger, Low NOx. Official JXi manual/spec PDFs (h0574300, 61356). |
| JXi 200 / 250 / 300 | 250,000 input | (to be verified) | Intermediate input classes in the same line (200K/250K/300K); per-model efficiency (to be verified). |
How to read these specs against your pool
Gas-fired models in the table are rated by fuel input — the heat that reaches your pool is at least 82% of that (federal floor, 10 CFR 430.32), and datasheet efficiency figures may be higher. The sizing guide shows how to convert.
Three practical checks before buying: first, confirm the required capacity with the BTU calculator (wind, shade and a solar cover move it); second, match the rating type — don't compare a gas input figure against a heat pump output figure; third, verify the exact model against the official Jandy datasheet and your installer's gas-line or electrical assessment, because installation constraints, not the spec table, decide what can actually be connected.
Then estimate what the model costs to run in the running cost calculator. This page is independent — no affiliation with Jandy; brand names are trademarks of their owners.
FAQ
Where do these Jandy specifications come from?
Every figure is captured from Jandy's own published material — official product pages, datasheets and installation manuals — with the source link shown under each table and a capture date. Nothing on this page comes from retailer listings or third-party claims about Jandy products.
Why do some fields say "(to be verified)"?
When Jandy doesn't publish a number for a field (a COP value, for example), this page leaves it marked "(to be verified)" instead of estimating it. The missing figure changes nothing about the ratings that are published — and the BTU calculator works from capacity, which every model states.
How do I compare Jandy with another brand?
Compare the same rating type: input BTU/hr against input, output against output, and convert gas input to delivered heat at the stated efficiency. All brand pages on this site follow the same table format from the same capture discipline, so brand pages are directly comparable — that is the point of running them on one neutral site.
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