Middleweight · $990–$1,299
Pool showdown
The Best Mid-Size Pool Heat Pumps of 2026 (Above-Ground, 7,500–8,000 Gal)
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- contenders compared
- 5
- owner ratings · Amazon
- 884
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- 2
- data last verified
- 2026-10-26
Once your above-ground pool crosses about 6,500 gallons, the little plug-in heat pumps in our budget roundup run out of headroom, and you step up to the 30,000–35,000 BTU class. It’s a bigger, pricier, and murkier field: mostly white-label imports from a handful of Chinese factories, a few with real brands behind them, and warranty terms that range from “3 years” to “nothing at all.” We read every serious contender signed in on the live listings, sanity-checked the field against the Swimming Pool Heat Pumps best-sellers, and ranked the ones that actually earn a mid-size pool’s money. This is the Middleweight division — mid-size above-ground pools, roughly 7,500–8,000 gallons.
🧭 Not sure this is your division? The Pool Heater Finder confirms the heater type and size for your pool’s gallons, climate, and goal — then routes you to the right showdown. Have an in-ground pool? Step over to the in-ground pool heat pump showdown (240V units, sized 55K–140K BTU).
The short version:
🏆 Best overall: FibroPool FH135 — the one from a real brand, with a warranty, and the rare 35,000 BTU unit that’s still 120V (no electrician). Its 4.2★/93 is the cleanest owner base in the tier, and owners literally return cheaper Chinese units for it. About $1,299.
💵 Best value: VARMINPOOL 30,000 BTU — about $1,100, and it heats and cools on a 120V outlet. Its 4.4★ is pooled across VARMINPOOL’s whole line, so it is not a read of this unit. No stated warranty, so add a protection plan.
🧾 The twin: Varpoolfaye 30,000 BTU — the same OEM platform as the VARMINPOOL under another badge, at the same $1,100, also 120V heat-and-cool. Its 4.3★/286 is pooled across six above-ground sizes, a narrower base than VARMINPOOL’s. No warranty.
🔥 Most heat for the money: ECOPOOLTECH Ultra Inverter — its listing rates it at 46,360 BTU max for pools up to 10,000 gallons, heat and cool, for $999. It must be hardwired, its 4.2★/288 is pooled across six sizes, and owners’ recurring complaint is support that doesn’t answer.
🔌 The inverter upgrade to watch: TURBRO Beluga B33V — a 33K full DC inverter that heats and cools on a standard 120V outlet, with the best warranty in the tier (2-yr/5-yr). On paper it out-specs the FibroPool. The catch: a brand-new listing with just 19 owner ratings (4.6★), so it’s early data — a contender to watch, not yet a belt-taker. About $1,199.
⛔ Skip: Aquastrong HEX035TOP — a 39K heat/cool unit at $1,799, but a thin, negative-leaning base (3.0★/13) and its “120V plug-and-play” claim is disputed by owners. Pay more, get less proof.
Quick comparison
| Model | Best for | BTU | Max pool size | Heat exchanger | Warranty | Owner rating | Price |
|---|---|---|---|---|---|---|---|
| Best overall: brand-backed, and 120V (no electrician) | 35,000 BTU | up to 7,500 gal | Not published by the maker | 10-yr limited (1-yr full parts + labor, then prorated) | 4.2★ / 93 | ~$1,299typical at AmazonCheck price → | |
| The inverter upgrade: heats & cools, 120V, best warranty — base still thin | 33,000 BTU (inverter) | up to 10,000 gal | Titanium (maker-stated) | 2-yr unit / 5-yr compressor | 4.6★ / 19 | ~$1,199typical at AmazonCheck price → | |
| Best value: highest rating for the money | 30,000 BTU | up to 8,000 gal per the listing; 7,000 per VARMINPOOL's store (V7 Plus) | Titanium (maker-stated) | None stated | 4.5★ / 198* | ~$989.99typical at AmazonCheck price → | |
| The twin: same platform, narrower base | 30,000 BTU | up to 8,000 gal | Titanium (maker-stated) | None stated | 4.3★ / 286 | ~$1,099.99typical at AmazonCheck price → | |
| Most heat for the money — hardwired, and support is the gamble | 46,360 BTU max (listing) | up to 10,000 gal (listing) | Not stated on the listing | "3-year support" (listing); ECOPOOLTECH publishes no warranty document | 4.2★ / 288 — pooled across six sizes | ~$999typical at AmazonCheck price → |
Prices move constantly — any Amazon price shown is as of the date noted and subject to change; tap through for today's number.
None of the four publishes a flow rate
Worth saying plainly, because it is the one spec that decides whether a heat pump works on the pump you already own: we checked all four against their makers’ own catalogues and none of them states the water flow its heat exchanger needs. Every branded heat pump does (Hayward 30–75 GPM, Pentair 30–120, AquaCal 30–70), because below a minimum the unit’s flow switch simply won’t let it fire. TURBRO comes closest — it publishes a rated flow for the Beluga B50V and B75V, but not for the B33V listed here.
It rarely bites at this size, but confirm with the seller if you run a variable-speed pump on a low setting, since that is exactly how you end up under a minimum nobody would tell you.
🏆 Best overall: FibroPool FH135
FibroPool FH135 Pool Heat Pump (35K BTU)
Best overall: brand-backed, and 120V (no electrician) · A 35,000 BTU heat pump for mid-size above-ground pools up to 7,500 gallons — and, unusually for its size, one that runs on a standard 120V outlet (no electrician). A real US brand with a warranty behind it and the cleanest owner base in the tier (4.2★/93); owners routinely return cheaper Chinese units for it
Sold in 3 capacities on this listing (35K–70K BTU) — this card is the 35,000 BTU. Check the size before you add to cart.
Your pick if you want a mid-size-pool heat pump from a real brand with a warranty — and you'd rather not hire an electrician, since it's the rare 35K unit that runs on a standard 120V outlet.
Sold by FibroPool USA, shipped by Amazon · 30-day refund / replacement · read 2026-10-08
Picked before we checked what this link pays us.
“I ordered a similar heater that was from China and 1/3 the price of this one, but it stayed on for about 10 minutes, shut down and wouldn't restart. I returned the Chinese one and got this — glad I did.”
FibroPool FH135 Pool Heat Pump (35K BTU)
Best overall: brand-backed, and 120V (no electrician)Sold in 3 capacities on this listing (35K–70K BTU) — this card is the 35,000 BTU. Check the size before you add to cart.
Your pick if you want a mid-size-pool heat pump from a real brand with a warranty — and you'd rather not hire an electrician, since it's the rare 35K unit that runs on a standard 120V outlet.
“I ordered a similar heater that was from China and 1/3 the price of this one, but it stayed on for about 10 minutes, shut down and wouldn't restart. I returned the Chinese one and got this — glad I did.”— K. E., Amazon · Verified owner
- A real US brand with a warranty behind it — the white-label rivals in this tier offer none
- The rare 35K unit that runs on a standard 120V outlet, so no electrician for a mid-size above-ground pool
- Cleanest owner base in the tier (4.2★/93, 0 Vine) — owners routinely return cheaper Chinese imports for it
- Pricier than the white-label rivals (about $1,299 vs ~$1,099–$1,199)
- Heat only — it doesn't cool
- The 10-year warranty is mostly prorated: one year of full parts and labor, then it pays half the part cost in years 2–5 and a quarter after that, with shipping to the repair center on you
Damaged on arrival or failing early — fan blades, a leak at two weeks, a controller one owner says is not rated for outdoors — and then support goes quiet. Returning a heavy unit costs hundreds.
8 of the first 10 critical cards (of 13) are an early failure or shipping damage plus unanswered support · critical reviews read August 2026
Sold by FibroPool USA, shipped by Amazon · 30-day refund / replacement · read 2026-10-08
At mid-size, the belt comes down to backing — and the FibroPool FH135 is the only pick here with a real brand and a warranty behind it. Its 4.2★ across 93 owners is a clean, model-specific base (no Vine), and it does something no rival its size does: it runs on a standard 120V outlet, so a 35,000 BTU unit installs with no electrician. Owners tell on the alternatives for you — more than one returned a cheaper Chinese heat pump that quit within minutes and bought this instead.
It’s not the highest raw number on the page — both white-labels post a 4.4★ — but those numbers are pooled across whole size ladders (VARMINPOOL’s across its entire 13-size line), while FibroPool’s 4.2★ is this exact model. Add the brand warranty and the no-electrician install and it earns the belt on merit, not just the badge. Not for you if: you want the lowest sticker (the two white-labels below are about $200 less), or you also want cooling (it’s heat-only — the two white-labels and the TURBRO Beluga all reverse to chill) — and mind the ~50°F heat-pump floor covered below.
💵 Best value: VARMINPOOL 30,000 BTU
VARMINPOOL 30,000 BTU Pool Heat Pump
Best value: highest rating for the moneySold in 3 capacities on this listing (18K–40K BTU) — this card is the 30,000 BTU. Check the size before you add to cart.
Your pick if you want the highest-rated mid-size unit for less than the branded pick, and you'll self-insure the missing warranty.
- A 4.5★ line-wide rating at about $1,100 — undercuts the branded belt
- Same value brand owners praise for easy install and responsive support
- Covers a genuine mid-size above-ground pool (to ~8,000 gal)
- No stated manufacturer warranty — add a protection plan on a $1,000+ appliance
- The 4.5★/198 is the whole VARMINPOOL line's, pooled across 13 sizes from the small plug-ins to the 140K V35 Ultra, so it says little about the 30K itself
- White-label brand, Amazon-only
The VARMINPOOL is the value play, from the same brand that anchors our small-pool picks. About $1,100 buys 30,000 BTU for a genuine mid-size pool (8,000 gallons per its Amazon listing, 7,000 per VARMINPOOL’s own store) on a standard 120V outlet per the listing, and VARMINPOOL’s own page gives it a cooling mode (46–82°F) as well as heat — about $200 under the heat-only FibroPool. The honest asterisks: its 4.4★ is pooled across VARMINPOOL’s entire line — Amazon now sells every VARMINPOOL heater, from the small plug-ins to the 140K V35 Ultra, as sizes of one listing, and every size shows the same 4.5★/198 (read 25 October 2026) — so it tells you about the brand, not this unit. And there’s no stated warranty: on a $1,000-plus appliance, budget for a protection plan. Buy it for heat-and-cool per dollar; go FibroPool if you want the warranty and a model-specific owner base.
🧾 The twin: Varpoolfaye 30,000 BTU
Varpoolfaye 30,000 BTU Pool Heat Pump
The twin: same platform, narrower baseYour pick if you want the heat-and-cool 30K platform and the Varpoolfaye badge is the one in stock for less that day — a narrower base than its twin's, and no warranty on either.
- Heats and cools (Varpoolfaye: 46–104°F heating, 46–82°F cooling) on a standard 120V outlet
- About $1,100, matching its VARMINPOOL twin to the cent on the same day
- Sized for a genuine mid-size above-ground pool (up to 8,000 gal)
- No stated manufacturer warranty
- Its 4.3★/286 is pooled across six sizes (5,500 to 17,000 gallons) with some non-US reviews, so it is not a read of the 30K alone, and it has fallen from 267 ratings in August
- White-label brand; the same machine as the VARMINPOOL 30K as far as anything published shows
The Varpoolfaye is the VARMINPOOL under another badge. Its Amazon listing prints model KSPF-007L1MR1A2; VARMINPOOL’s own store sells its 30K as KSPF-007L1MR1A1; both are 30,000 BTU, 120V, heat and cool, and both read $1,099.99 on the same day. What differs is the evidence: the Varpoolfaye’s 4.3★ across 286 ratings is pooled across a six-size above-ground ladder (5,500 to 17,000 gallons), narrower than VARMINPOOL’s whole-line pool, with some Australian and Canadian reviews in it. In August this listing read 4.2★ on 267; the count has since fallen, so treat it as a moving base. No stated warranty. Pick between the two on whichever is in stock at the lower price that day — they are the same machine as far as anything published shows. There is a third badge on it, too: WARMBLU’s listings name the maker as Foshan Goodheat Technology and use the same KSPF model codes, so its 35,000 BTU H10 is the same factory’s next size up, not a different design.
🔥 Most heat for the money: ECOPOOLTECH Ultra Inverter
ECOPOOLTECH Ultra Inverter Pool Heat Pump (up to 10,000 gal)
Most heat for the money — hardwired, and support is the gambleSold in 6 pool sizes on this listing: 10×20×30 in, 12×24×52 in, 14×16×48 in, 15×30×52 in, 16×32×82 in, 20×40×62 in — this card is the 12×24×52 in. Check the size before you add to cart.
Your pick if you want the most heating (and cooling) for about $1,000, you already have a circuit an electrician can wire it to, and you accept that support is the part owners say is missing.
- The most stated heat per dollar here: 46,360 BTU max for $999, with heating and cooling
- Full DC inverter with Wi-Fi control and automatic defrost
- Sold and shipped by ECO POOLTECH itself, in stock at the September read
- Must be hardwired — budget an electrician, unlike the 120V picks on this page
- 4.2★ / 288 is pooled across six sizes, from 10×20 ft pools up to a 19,000-gallon unit, with Canadian reviews in it
- The recurring owner complaint is support: emails unanswered, no manual, and one August 2026 owner writes that the company went out of business
- Several recent owners report weak or no heating and an E00 error at start-up
Weak or no heating and an E00 error at start-up, and then a support line owners cannot reach. One August 2026 owner writes that the company went out of business; ECO POOLTECH was still the seller of record at our 2026-09-24 read.
As of the 2026-09-24 read, 45 of 288 ratings were critical (16%); of the 10 most recent critical reviews, 5 describe weak or no heating or an E00 error and 3 describe unreachable support · critical reviews read September 2026
If output per dollar is the whole question, this is the answer on this page: a full DC inverter that heats and cools, which its listing rates at 46,360 BTU max for pools up to 10,000 gallons, for $999. That is more stated heat than anything else here at the lowest price, sold and shipped by ECO POOLTECH itself.
Three catches, in order. It must be hardwired — the listing says so plainly — so an electrician is part of the price, unlike the 120V units above. Its 4.2★ across 288 is pooled across six sizes, up to a 19,000-gallon unit, so it describes the line rather than this size. And the critical reviews carry a pattern: of the ten most recent, five describe weak or no heating or an E00 error at start-up, and three describe support that never answers — one owner writes in August 2026 that the company went out of business, though ECO POOLTECH was still the seller of record when we read the listing in September. ECOPOOLTECH has no maker site and publishes no warranty document; the listing promises “3-year support.”
Not for you if: you want a plug-in, or you want someone to call when it throws an error — the FibroPool is the backed buy.
🔌 The inverter upgrade to watch: TURBRO Beluga B33V
TURBRO Beluga B33V Pool Heat Pump (33K BTU, inverter)
The inverter upgrade: heats & cools, 120V, best warranty — base still thinYour pick if you want the most-featured mid-size heat pump — a full DC inverter that heats AND cools, still on a standard 120V outlet (no electrician), with the best warranty in the tier — and you're OK being an early owner while its review base is tiny.
“The first unit did not work but the customer service support was quick to help me troubleshoot and ship out a second unit after I sent a video of the issue.”— Colleen Fisher, Amazon · Verified owner
- Does what no single rival in the tier does: full inverter, heats AND cools, on a standard 120V outlet (no electrician)
- Best warranty in the tier — 2 years on the unit, 5 on the compressor — from a real brand (TURBRO makes mini-splits and RV ACs)
- Inverter modulation runs quieter and cheaper than the on/off white-labels; WiFi-controlled
- Brand-new listing with a tiny owner base (4.6★/19 — early data); the FibroPool winner has 92, so the track record isn't there yet
- Rated to 10,000 gallons — for the top of the mid-size band it's about right, but confirm your real gallons
- Priced at the top of the tier (about $1,199), on par with the proven FibroPool
Dead on arrival — it is the whole of the one-star tail rather than a mix of failure modes.
the dominant complaint, and the 10% one-star share is entirely this · critical reviews read August 2026
The TURBRO Beluga B33V is the most-featured unit in the tier, and on paper it beats the FibroPool winner: a full DC inverter (quieter and cheaper to run than the on/off white-labels) that heats and cools, still on a standard 120V outlet (no electrician), backed by the best warranty here — 2 years on the unit, 5 on the compressor — from a real brand. So why isn’t it the belt? Evidence. It’s a brand-new listing with just 19 owner ratings (4.6★) — real, but far too thin to crown over the FibroPool’s proven 93. If the base holds up as it grows, it’s the belt-taker to watch. Not for you if: you want a track record now (the FibroPool has it), or your pool is over ~10,000 gallons (this is rated to 10,000).
⛔ Skip: Aquastrong HEX035TOP
The Aquastrong HEX035TOP shows up in this size class — a 39,000 BTU heat/cool unit at about $1,799 — and on paper the reversible heat-and-cool is tempting. Skip it anyway. Its owner base has thinned to 3.0★ across just 13 ratings, leaning negative, and its headline “120V plug-and-play” claim is exactly what owners dispute (the GFCI plug won’t seat in a standard outlet, and it trips on the fan’s startup). You’d pay the most in the tier for the least proof. If you genuinely want heat and cool on a budget, our budget pool cooler roundup handles that lane properly.
What it costs to run
A heat pump moves heat rather than making it, so it delivers roughly five units of warmth per unit of electricity (a COP around 5) — the reason it beats an electric-resistance heater by a mile. Punch in your own pool below; the defaults are set for a mid-size above-ground pool on a six-month season.
What will it cost to heat your pool?
Heat pump, gas, or solar — the purchase price is only half the story; the run cost is the other half. Set your pool and your rates, and see the estimated yearly cost of each. The math updates live.
Don't know your gallons? Work it out here →
Exact geometry at 7.48 gal/ft³. Kidney shapes, diving hoppers and salt/turnover figures live in the full Pool Volume Calculator.
Don't know your gallons? Estimate from your pool's size
Average depth = (shallow end + deep end) ÷ 2 — about 4–5 ft for a typical pool. Uses the standard pool-volume factors (rectangle ×7.5, oval ×6.7, round ×5.9 gallons per square-foot-foot). For a round pool, enter the diameter.
⚠ A heat pump shrinks in cool air. Its output falls to about two-thirds of its rating in 50°F (10°C) air (Pentair rates its UltraTemp 140 at about a third less heat at 50°F than at 80°F (27°C)), and below 50°F models differ — some defrost and carry on, some shut down until the air warms. The heat-pump figure above counts only the heat it can deliver in those months, so budget a gas top-up or a cover for them. Most calculators ignore this and quote a too-rosy heat-pump number.
Estimate only. Model: for each month of your season, what the pool loses through its surface on an average day at your target temperature — evaporation, air and sky, from the Florida Solar Energy Center's pool-loss equations run hour by hour on NOAA 1991–2020 hourly normals (your zone, or the station nearest your ZIP), with the wind at the water set by your yard — less the sun it absorbs (NASA POWER). A heat pump replaces that in the warmest hours first, at the makers' certified efficiency for each hour's air (a COP of about 5.6 at 80°F, 4.0 at 50°F, nothing counted below 50°F), because a pool holds its heat overnight. Gas is ~84% efficient regardless of weather. Solar's run cost is near zero because the filter pump is already running, but it only adds heat while the sun is out. Surface area comes from your gallons at an average depth unless the volume helper below sets your length and width. Energy prices start at U.S. EIA residential averages; your ZIP swaps in your state's.
The long-run picture: heat pump vs gas
Gas costs less to buy; a heat pump costs less to run. Here's where the heat pump's lower bills overtake gas's lower sticker price — built live from your run-cost numbers above.
Total cost = installed price + run cost × years, using your numbers above (installed prices are editable estimates — heat pumps run ~$4,000–7,000 installed, gas ~$2,500–4,000 plus a gas line). Solar is left off this chart on purpose: its run cost is near zero but it only partly heats and can't run on demand, so a pure total-cost line would crown it unfairly.
How to choose
Size to your gallons — and size up. 30–35K BTU suits roughly 7,500–8,000 gallons; budget BTU ratings run optimistic, so if you’re near the top of a unit’s range, step up rather than run it flat out. Get your real number from the free pool-volume calculator first. Under ~6,500 gallons, the cheaper Lightweight units are the better fit; over ~10,000, see the main heater guide.
Check the voltage on the exact listing. Four of the five picks here run on a standard 120V outlet (the ECOPOOLTECH Ultra is hardwired), and one size up — Varpoolfaye’s own 35,100 BTU unit, for one — is 220V and needs a dedicated circuit. If a listing you are looking at says 220V, factor an electrician into its real cost.
Buy the one that’s backed. Most of this tier is the same few Chinese OEMs rebadged, so what actually separates them is the warranty and a deep owner base. FibroPool has both the brand warranty and a clean base; the two white-labels have neither a warranty nor a base that describes the 30K alone; the thin listings (a handful of reviews, or a too-perfect 5.0★) are the ones to walk past.
Respect the ~50°F floor, and cover the pool. These extend your spring and fall; they’re not winter heaters. A solar cover is the highest-leverage add-on — it holds heat overnight so the unit isn’t starting cold every morning.
FAQ
What size heat pump do I need for a mid-size above-ground pool?
For a mid-size above-ground pool — roughly 7,500 to 8,000 gallons — 30,000 to 35,000 BTU is the band, which is exactly where every pick here sits. The honest rule is to size UP: budget BTU ratings run optimistic, and an undersized unit runs nonstop and still loses on a cool night. Get your real gallons first with our free pool-volume calculator, then match the BTU. Under ~6,500 gallons you want the smaller, cheaper Lightweight units; over ~10,000 gallons you're into the flagship heaters in our main heater guide.
Do mid-size pool heat pumps need an electrician?
Mostly not. Four of the five picks run on a standard 120V outlet: the FibroPool FH135, the TURBRO Beluga B33V, and both 30,000 BTU white-labels (VARMINPOOL's Amazon listing and Varpoolfaye's own store page both say 120V). One size up it changes — Varpoolfaye's own 35,100 BTU and bigger units are 220V and need a dedicated circuit, which means an electrician. The exception is the ECOPOOLTECH Ultra Inverter, which its listing says must be hardwired. Check the voltage on the exact listing before you buy.
What's the best value mid-size pool heat pump?
About $1,100 for either 30,000 BTU white-label — the VARMINPOOL and the Varpoolfaye read the same price on the same day and share one OEM platform (model codes KSPF-007L1MR1A1 and A2), both heat and cool, and both show 4.4★. Read those stars carefully: VARMINPOOL's is pooled across its whole 13-size line, up to a 140K in-ground unit, and Varpoolfaye's across a six-size ladder, so neither describes the 30K alone. Both undercut the branded FibroPool by about $200 — the trade-off is neither states a warranty, so budget for a protection plan.
Are budget mid-size pool heat pumps reliable?
It's a mixed bag, and warranty is the tell. Most are white-label imports from a few Chinese factories rebadged under different names, and owners of the cheapest ones report early failures (one FibroPool buyer returned a Chinese unit that quit after 10 minutes). The two things that separate a keeper: a real brand that stands behind it with a warranty (FibroPool), and a deep, non-thin owner base read at the model level, not pooled across a whole brand's line. Thin listings — a handful of reviews or a suspicious 5.0★ — are the ones to avoid.
Is an inverter pool heat pump worth the extra money?
It depends on how much you actually run the heater, and at this size the honest answer is not the one the spec sheet gives. A standard heat pump has a single-speed compressor that runs flat out and cycles off; a full DC inverter varies compressor speed, so it runs longer at lower power. That buys three real things: better efficiency once the pool is at temperature and you are just holding it, noticeably quieter operation, and — on several inverter units — the ability to run in reverse and COOL the pool, which in Florida is worth as much as the heating for a couple of months a year. If you heat a shoulder season, run year-round, or want the pool cooled in July, an inverter earns its premium. If you only warm the pool up a few weekends a year, it does not; you are paying for efficiency you will not accumulate. The catch specific to this tier, and the reason our belt did not go to an inverter: the inverter units at mid-size prices are new, and their owner bases are thin. The TURBRO Beluga B33V out-specs the field on paper — full inverter, heats and cools, 120V, the best warranty here — on a base of about a dozen owners, which is far too shallow to crown against a unit with real proof behind it. Buy the inverter for the cooling and the quiet if you want them; do not buy it on the efficiency claim alone at this size, and read the owner base before you pay the premium.
How cold is too cold for a mid-size pool heat pump?
Same physics as any heat pump: output falls as the air cools, to about two-thirds of its rated heat at 50°F air on Pentair, Hayward, AquaCal and Jandy's own rating tables, so on cool days it falls behind. These are season-extenders for spring and fall, not winter heaters. Pair one with a solar cover to hold the heat overnight and you'll cut its runtime — and your bill — sharply.
Update history
- October 2026 (2026-10-08) — Added a "start here" box at the top for readers whose equipment just failed or whose closing date is close: the free or cheap check from our own guide first, then the fastest buy, which is the crown below.
- September 2026 (2026-09-30) — Heat-pump cold-air wording corrected: the FAQ said a heat pump "effectively stops" below about 50°F. The makers' own certified tables (Pentair UltraTemp brochure 10/2024, Hayward HeatPro MCHX manual 2024, AquaCal SQ200R, Jandy JRT3000R) show it still delivers about two-thirds of its 80°F-rated heat at 50°F air, at a COP of about 4.0; the DOE's consumer guide put the efficient range above 45–50°F. Output shrinks rather than stops.
- September 2026 — Field scan of the Swimming Pool Heat Pumps best-sellers (2026-09-24). Added the ECOPOOLTECH Ultra Inverter (46,360 BTU max per its listing, heat and cool, $999, 4.2★/288 pooled, hardwired) as Most heat for the money. Not added: the Raypak Crosswind 40i (Raypak's own Crosswind page now lists only the 50-I and 65-I) and the WARMBLU H10 (the same Foshan Goodheat factory as both white-labels here; noted in the twin section). TURBRO B33V re-read at 4.6★/19.
- September 2026 — Both 30,000 BTU white-labels re-read signed-in 2026-09-24 and checked against their makers' own store pages. Corrections: the Varpoolfaye is 120V, not 240V, and both it and the VARMINPOOL heat AND cool (the makers state 46–82°F cooling), so the electrician framing is gone — every pick here is 120V. The two are one OEM platform (KSPF-007L1MR1A1 / A2) at the same $1,099.99. VARMINPOOL now pools one 4.4★/153 across its whole 13-size line; Varpoolfaye reads 4.4★/151 across six sizes (it was 4.2★/267). The Varpoolfaye's role changes from cheapest and most-proven to the twin.
- August 2026 — First published. Middleweight division of pool heating — heat pumps for mid-size above-ground pools (30–35K BTU), the step up from the Lightweight small-pool tier. Roster confirmed against the Swimming Pool Heat Pumps best-sellers; all ratings read signed-in on Amazon 2026-08-01. FibroPool FH135 best overall (4.1★/92, brand warranty, 120V/no-electrician); VARMINPOOL 30K best value (4.4★/126 pooled); Varpoolfaye 30K cheapest (4.2★/267); Aquastrong HEX035TOP the SKIP (3.0★/13).
Every Pool Heating showdown, by division
Same fight, different budgets. The head rulings first, then each weight class as the price climbs.
- Pound-for-poundThe Best Pool Heaters of 2026: Heat Pump vs Gas vs Solar
- CatchweightThe Best In-Ground Pool Heat Pumps of 2026 (by Pool Size)
- CatchweightThe Best Large Above-Ground Pool Heat Pumps of 2026 (10,000–16,000 Gal)
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CatchweightThe Best Pool Water Levelers of 2026, and Why Every One Can Stick Open
Five portable pool water levelers compared in October 2026 on their owner record, what each mak…
Heavyweight · $1,400–$1,600The Best Self-Docking Pool Robots (2026): WYBOT S2 Solar vs S2 Solar Vision vs Aiper Scuba X1 Pro Max
The Heavyweight class, $1,500–$2,000 at list price, read signed in on Amazon and on each maker'…
CatchweightThe Best Pool Basketball Hoops of 2026: Matched to Your Pool and Deck
Nine pool basketball hoops read one listing at a time, with every recent critical review. The D…
Lightweight · $16–$69The Best Halloween Pool Floats of 2026: Float a Pumpkin, Not a Coffin
Halloween pool floats, read one listing at a time with every recent critical review. FUNBOY's l…