Pool Heaters: Compare Exact Models, Power and Installation Needs
Quick answer
Start with the actual pool, climate, required temperature and available services, then have a qualified pool professional assess suitable equipment. The two AQUASTRONG examples are heat pumps; the Hayward example uses natural gas. Their model numbers, electrical requirements and published capacities differ. A gallon label or nominal power figure alone does not establish the right installation.
Review basis: Manufacturer and retailer specifications, compared with practical buyer requirements. This is a research-based guide; it does not claim hands-on testing or independent performance scores. Reviewed 2026-10-27.
Decision factors
| Priority | What to compare |
|---|---|
| Model | Check the complete model and actual nameplate. A similar cabinet or shared brand does not establish the same electrical or heating specification. |
| System | Distinguish a heat pump from a natural-gas heater. Fuel supply, electrical service, water flow and installation requirements must match the exact unit. |
| Sizing | Obtain a site-specific assessment for the actual pool. Pool volume alone does not establish a universal BTU requirement or heating rate. |
| Rating | Keep stated capacity and efficiency with their test conditions. A published rating does not establish a guaranteed energy bill, payback period or temperature gain. |
Compare the options
Choose by the job and limitations below. Retailer specifications and package contents can change; check the exact offer before ordering.
AQUASTRONG HEX055 — 55,000-BTU Heat-Pump Listing
Consider it for: The current title and matched brand page describe the HEX055 heat-pump family with a 220V description.
Check first: The retailer model field says HEX055 while a part field says HEX018-001. Confirm the actual supplied model, nameplate, manual and installation requirements before purchase.
Check Price
AQUASTRONG HEX012 — 12,000-BTU Heat-Pump Listing
Consider it for: The current exact listing identifies HEX012-001 and a smaller heat-pump reference.
Check first: The retailer says 110V while the matched brand page says 120V. Have the installer confirm the actual nameplate and manual; this guide does not substitute a blanket 240V instruction.
Check Price
Hayward Universal H-Series — W3H150FDN
Consider it for: The current exact reference and Hayward’s model list identify a 150,000-BTU natural-gas version.
Check first: This is not the propane W3H150FDP. Confirm the exact gas, electrical, water-flow, location and service requirements with a qualified installer.
Check PriceHow to make the buying decision
Resolve the exact unit before comparing size
The current HEX055 row contains different model and part identifiers. The HEX012 retailer and brand page also use different voltage labels. These differences are retained for confirmation, rather than silently choosing one electrical specification for a delivered unit. Check the manufacturer label, matching manual and seller’s exact supply.
Use a site-specific sizing and installation assessment
Have a qualified professional consider the actual pool and site, including conditions, temperature target, permitted operating location, water system and available fuel and electrical services. Do not apply one clearance, circuit or heating-capacity rule to all three references. The selected natural-gas and heat-pump systems are not interchangeable installation packages.
Compare ratings without promising results
Published capacity, efficiency and gallon claims describe equipment under stated conditions. They do not establish a measured temperature increase per hour, a fixed installation price, universal service life or a verified percentage bill saving for this pool. Check the exact warranty, service availability and installed quote; this page reports no publisher heating or operating-cost trial.
Frequently asked questions
Can one voltage rule be applied to every pool heater?
No. Confirm the exact supplied nameplate, matching manual and qualified installer’s requirements.
Is W3H150FDN the propane reference?
No. The selected W3H150FDN is identified as natural gas; W3H150FDP is a different fuel reference.
Does a gallon label determine the correct heater alone?
No. Obtain an assessment for the actual pool, site and required operating conditions.
Is a fixed heating rate or bill saving verified here?
No publisher heating or operating-cost trial is reported, and no universal rate or saving is promised.
Before you order
Confirm the exact model, package contents, fit and current seller terms against the requirements above. Choose the option that matches the job you need it to do.
Sources and further checks
- AQUASTRONG HEX055 model page
- AQUASTRONG HEX012 model page and voltage label
- Hayward current natural-gas and propane model identities
- AQUASTRONG HEX055 — 55,000-BTU Heat-Pump Listing listing
- AQUASTRONG HEX012 — 12,000-BTU Heat-Pump Listing listing
- Hayward Universal H-Series — W3H150FDN listing
The exact retailer references above identify the compared products. Check the selected variant and current seller terms before ordering.
