Quick answer
“Crosswind V” isn’t one heat pump — it’s four sizes across two tiers, and it’s also sold under two other brand names for the identical hardware. The Standard (heat-only, “EHT”) lineup runs TWPH-4550EHT08 (85,000 BTU, 5.8 COP) → TWPH-5550EHT08 (102,000 BTU, 6.1 COP) → TWPH-6550EHT08 (118,000 BTU, 6.1 COP) → TWPH-8550EHT08 (138,000 BTU, 6.0 COP, roughly $3,859-$4,953). The Deluxe (heat/cool, “EHC”) tier adds a cooling mode on the two larger sizes only, at a slightly lower COP (TWPH-6550EHC08: 115,000 BTU/6.0 COP; TWPH-8550EHC08: 137,000 BTU/5.8 COP). And because Raypak has been a Rheem Manufacturing Company subsidiary since 1985, the flagship 8550 ships as three cross-badged twins off the same line — Raypak’s own EHT08, Rheem’s EHT10, and Ruud’s EHT11 — identical hardware, three model numbers.
One heat pump line, four sizes, two tiers
Crosswind V shows up across this site’s Raypak coverage and brand comparisons as the heat pump that now out-COPs Hayward’s HeatPro, but it’s never gotten its own size-by-size breakdown — which matters, because “Crosswind V” on a listing could mean anything from an 85,000 BTU entry unit to a 138,000 BTU flagship, in either a heat-only or heat/cool configuration.
| Model | Tier | BTU | COP | Typical price |
|---|---|---|---|---|
| TWPH-4550EHT08 | Standard (heat-only) | 85,000 | 5.8 | ~$3,200-$3,900 |
| TWPH-5550EHT08 | Standard (heat-only) | 102,000 | 6.1 | ~$3,600-$4,300 |
| TWPH-6550EHT08 | Standard (heat-only) | 118,000 | 6.1 | ~$3,900-$4,600 |
| TWPH-8550EHT08 | Standard (heat-only) | 138,000 | 6.0 | ~$3,859-$4,953 |
| TWPH-6550EHC08 | Deluxe (heat/cool) | 115,000 | 6.0 | ~$4,300-$5,000 (est.) |
| TWPH-8550EHC08 | Deluxe (heat/cool) | 137,000 | 5.8 | ~$4,600-$5,400 (est.) |
TWPH-8550EHT08: the flagship this site already recommends
The 8550 is the model our best Raypak pool heater guide and Raypak vs. Hayward comparison already point to, rated 138,000 BTU with a titanium heat exchanger and a 6.0 COP under AHRI 1160 standard 80°F-air/80°F-water test conditions — meaning roughly $1 of electricity returns about $6.00 of heat. Current retail pricing spans a wide range: we found it as low as $3,859 at a certified Raypak distributor running a promotion, up to $4,953 at Home Depot, with Walmart ($4,244.59) and most pool-supply retailers landing closer to the $4,800 list price. That’s a wider — and in places cheaper — range than this site’s prior $4,550-$5,100 Crosswind V canon, worth knowing if you’re comparison-shopping rather than buying from the first listing you find.
Raypak Crosswind V TWPH-8550EHT08 Heat Pump (138,000 BTU)
- Heat-only — no cooling mode. Step up to the Deluxe EHC08 below if you want to actively cool the pool too.
- Price varies by over $1,000 across retailers for the identical model — check current listings rather than assuming the first price you see is the best one.
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Standard vs. Deluxe: the cooling mode costs you COP
Raypak splits Crosswind V into two tiers using an “EHT” (heat-only) vs. “EHC” (heat/cool) suffix — the same heat-only/heat-cool split this site has already documented on Pentair’s UltraTemp 140 vs. 140 H/C and Hayward’s HP50HA vs. HP50TA. The pattern repeats here: adding the ability to cool the pool isn’t free. On the 8550 size, the Deluxe TWPH-8550EHC08 drops slightly to 137,000 BTU and a 5.8 COP, versus the Standard EHT08’s 138,000 BTU and 6.0 COP. The smaller TWPH-6550EHC08 shows the same tradeoff against its own Standard sibling (118,000 BTU/6.1 COP). Deluxe models aren’t offered at all on the two smallest sizes (4550 and 5550) — if you want cooling, you’re choosing between the 6550 or 8550 Deluxe only.
Raypak Crosswind V Deluxe TWPH-8550EHC08 Heat/Cool Pump
- The only Crosswind V 8550 variant that can lower pool temperature during a heat wave, not just raise it.
- Heats slightly less efficiently than the Standard EHT08 — only worth the swap if cooling matters to you.
The real naming trap: three brands, one assembly line
This is where Crosswind V gets more confusing than either of this site’s other single-product reviews. Raypak has been a Rheem Manufacturing Company subsidiary since 1985, and Rheem Manufacturing also owns the Ruud brand — so the exact same 138,000 BTU Crosswind V hardware ships under three different badges, each with its own model number:
| Brand | Model number | BTU | COP (AHRI 80/80) |
|---|---|---|---|
| Raypak | TWPH-8550EHT08 | 138,000 | 6.0 |
| Rheem | TWPH-8550EHT10 | 138,000 | 6.0 |
| Ruud | TWPH-8550EHT11 | 138,000 | 6.0 |
A pool-supply listing for the Raypak TWPH-8550EHT08 explicitly lists the Rheem TWPH-8550EHT10 and Ruud TWPH-8550EHT11 as direct substitutes for it — confirming this isn’t three separately-engineered products that happen to share a BTU rating, it’s one assembly line sold under whichever badge a given dealer network carries. If you’re shopping by model number alone and only recognize the Raypak name, you could easily pass over an identically-specced Rheem or Ruud unit sitting at a better price nearby.
One sitewide note worth flagging here: our own best Rheem pool heater guide cites the Rheem-badged Crosswind V at a 5.3 COP — that figure comes from the same manufacturer spec sheet, but it’s the rating at a colder 50°F-air test condition, not the standard 80°F/80°F AHRI rating the 6.0 figure above comes from. Under the same standard conditions this page uses for every other model, Rheem’s badge-twin matches Raypak’s 6.0 COP exactly, as the identical-hardware explanation above would predict.
Which Crosswind V size and tier actually fits your pool
Use roughly 5-7 BTUs per gallon for a heat pump (see our sizing chart for the full formula). A smaller above-ground or spa-adjacent pool fits the 4550 or 5550; most in-ground pools in the 15,000-20,000 gallon range land on the 6550 or 8550. Within whichever size fits your pool, default to the Standard (EHT) tier unless you specifically want cooling capability, in which case the Deluxe (EHC) 6550 or 8550 is your only option. And if a local dealer only stocks Rheem or Ruud rather than Raypak, that’s not a downgrade — check the model number’s last two digits (08/10/11) to confirm it’s the same Crosswind V platform before assuming you need to special-order the Raypak badge specifically. For how the 8550 stacks up against Hayward’s and Pentair’s equivalent heat pumps, see our Raypak vs. Hayward and Raypak vs. Pentair comparisons, or our best pool heat pump roundup for the full cross-brand picture.
The bottom line
Crosswind V spans a $3,200 entry-level unit, a $3,859-$4,953 flagship, a cooling-capable Deluxe tier that trades away a little efficiency to get there, and — thanks to Raypak’s ownership under Rheem Manufacturing — two more brand badges (Rheem, Ruud) selling the identical 8550 hardware under different model numbers. Check the actual model suffix and current listed price before assuming the Raypak badge specifically is required, or that a lower-COP number on a sister brand’s page means genuinely different hardware.
Sources: PoolZoom — Raypak TWPH-8550EHT08/EHT10 Crosswind V Heat Pump, Premier Pools — Raypak TWPH-8550EHT08 Crosswind V Heat Pump 138,000 BTU/6.0 COP, Sunplay — Raypak Crosswind V 80,000 BTU Pool and Spa Heater TWPH-4550EHT08, InyoPools — RP Crosswind V Brochure, Vita Pool Supply — The Difference Between Rheem, Raypak and Ruud