Raypak’s smallest inverter heat pump, for above-ground or small in-ground pools where low noise and heat-and-chill matter.
RaypakThe Raypak Crosswind 50K and the TURBRO Manatee M18 18,000 BTU are evenly matched, rated 2.9 and 2.9. The Raypak Crosswind 50K leads on cool weather and warranty. The TURBRO Manatee M18 18,000 BTU wins on noise.
A plug-in heater for small above-ground pools up to about 6,000 gallons, for owners who swim in the warm months and don’t want to wire a 240 V circuit.
Amazon $549.99Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Raypak Crosswind 50K for cool weather (COP 4 and 49% of its rated output at 50 °F air vs COP 2.9 and 45% of its rated output at 50 °F air) and warranty (3-year compressor, 3-year parts, 3-year labor vs 5-year compressor, 2-year parts).
- Choose the TURBRO Manatee M18 18,000 BTU for noise (48 dB(A) vs 50 dB(A)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every above-ground pool heat pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Raypak Crosswind 50K | TURBRO Manatee M18 18,000 BTU |
|---|---|---|
| Overall rating | 2.9/5 | 2.9/5 |
| Efficiency 25% | 25 COP 5.4 at 80 °F air | 31 COP 5.5 at 80 °F air |
| Cool weather 20% | 22 COP 4 and 49% of its rated output at 50 °F air | 0 COP 2.9 and 45% of its rated output at 50 °F air |
| Value 20% | 50 no current price (neutral score used) | 82 $550 for 18,000 BTU ($31 per 1,000 BTU) |
| Warranty 15% | 43 3-year compressor, 3-year parts, 3-year labor | 26 5-year compressor, 2-year parts |
| Cold air 10% | 50 lowest operating air temperature not published (neutral score used) | 30 heats in air down to 41 °F |
| Noise 10% | 80 50 dB(A) | 90 48 dB(A) |
Specifications
| Raypak Crosswind 50K | TURBRO Manatee M18 18,000 BTU | |
|---|---|---|
| Heating ratings | ||
| Output, 80 °F air / 80% RH / 80 °F water | 48,000 BTU | 18,000 BTU |
| COP, 80 °F air | 5.4 | 5.5 |
| Output, 50 °F air / 63% RH / 80 °F water | 23,500 BTU | 8,095 BTU |
| COP, 50 °F air | 4 | 2.9 |
| Output kept at 50 °F | 49% | 45% |
| AHRI certified | Yes | No |
| Compressor | Variable speed | Single speed |
| Lowest operating air temperature | - | 41 °F |
| Defrost | Yes | Yes |
| Heat and cool | Yes | Yes |
| Sound level | 50 dB(A) | 48 dB(A) |
| Installation | ||
| Power | 230 V, 25 A breaker | 115 V |
| Water flow | 20 to 80 gpm | - |
| Recommended pool size | - | Up to 6,000 gal |
| Heat exchanger | titanium (spiral tube in PVC) | titanium tube |
| Refrigerant | R-32 | R-32 |
| Size (W × D × H) | 39.4 × 17.9 × 30.2 in | - |
| Weight | 149.9 lb | - |
| Features | ||
| Wi-Fi | Built in | No |
| App | Raymote | - |
| Automation compatibility | Poolside Tech Attendant | - |
| Warranty and models | ||
| Warranty | 3 yr compressor, 3 yr parts, 3 yr labor, 7 yr heat exchanger | 5 yr compressor, 2 yr parts |
| Warranty terms | 3 years parts and labor; titanium tube of the heat exchanger 7 years parts only (1 year labor). Single-family residential only; any other installation gets 1 year parts and labor. Contiguous 48 states. | 2-year limited warranty on the unit (3 years if registered at turbro.com/warranty) and 5 years on the compressor; repair or replacement of parts, non-transferable. Labor and heat exchanger terms not stated. |
| Also sold as | Rheem CROSSWIND 50/70/90 | - |
| Released | 2026 | 2024-08 |
