Hayward vs Pentair Pool Heater (2026): Which Brand Wins?

Quick answer: Hayward and Pentair are both top-tier pool-equipment brands. On gas heaters, price is now close enough to be a wash — the Universal H-Series runs $4,600-$5,100 per current Home Depot, Walmart, and PST Pool Supplies listings (up from the roughly $4,589 this site tracked earlier), overlapping the MasterTemp 400’s roughly $4,789, so service network and features matter more than the small dollar gap. On heat pumps, Pentair now wins on both price and efficiency: the UltraTemp 140 (around $5,200-$6,000) costs meaningfully less than Hayward’s newer-generation HeatPro HP21405T (around $6,500-$7,000) while also posting the higher COP (~6.0 vs HeatPro’s ~5.7). Match whichever brand already runs your pump and automation system if the two prices are close enough not to matter for your budget.

Last updated September 26, 2026: re-verified the Hayward Universal H400FDN’s price directly against current Home Depot, Walmart, and PST Pool Supplies listings — it has risen to $4,600-$5,100 from the roughly $4,589 previously cited, closing most of its price gap with the Pentair MasterTemp 400.

Hayward and Pentair are the two biggest names in pool heating, and most buyers end up choosing between them. They both make excellent gas heaters and heat pumps — so the real question is which brand fits your pool, budget, and existing equipment. Here’s how they compare head to head.

Hayward vs Pentair at a glance

Gas heaters: MasterTemp vs Universal H-Series

Both flagship gas heaters land around 84% thermal efficiency and cover the same 250k–400k BTU range, so raw heating power is a wash. The differences are at the margins:

• The Pentair MasterTemp 400 lights faster from a cold start, runs slightly quieter, and has a clean, modern control panel.
• The Hayward Universal H-Series H400FDN is a little easier to service and is compatible with more setups out of the box, though its price has climbed to $4,600-$5,100 and now overlaps the MasterTemp 400’s roughly $4,789, so it’s no longer a clear-cut cheaper pick.

For most owners the two now land close enough in price that service network and features matter more than a small dollar gap; choose the MasterTemp if quiet operation and fast cold-starts matter to you, or the Hayward if you want the widest bench of local techs. The MasterTemp also comes in 125K and 250K sizes below the 400K flagship — see our full Pentair MasterTemp size guide if 400,000 BTU is more than your pool needs.

If you want it installed before the season starts, delivery speed matters — try Amazon Prime free for 30 days for two-day shipping on either brand.

Heat pumps: UltraTemp vs HeatPro

Pentair now wins here on both counts. The UltraTemp posts a rated COP near 6.0 with an automatic defrost cycle, giving it the lowest running cost and a wider operating range — and, since Hayward’s HeatPro moved to its newer MCHX titanium generation, the UltraTemp is also the less expensive of the two. The HeatPro still offers a titanium exchanger and a COP around 5.7, close behind Pentair’s, but no longer undercuts it on price. See our pool heating cost guide for what that COP gap actually means in monthly dollars.

• Choose the Pentair UltraTemp if you want maximum efficiency, the widest shoulder-season range, and the lower price of the two.
• Choose the Hayward HeatPro mainly if you already run Hayward pumps or automation and want to stay in-brand — see our full Hayward lineup roundup for its other models.

The bottom line

Both brands are safe, top-tier choices — there’s no wrong answer. Buy Hayward if you want easy, affordable service down the road; the Universal H-Series matches roughly 95% of the MasterTemp’s performance at a now-similar price, so service network is the bigger differentiator than cost. Buy Pentair if you want the quietest, most efficient equipment overall, including the lower-priced, higher-COP heat pump, plus a fully automated IntelliCenter pool. The most common tie-breaker is simple: match whichever brand already runs your pump and automation, and installation stays clean. Weighing more than just these two on the gas side? Our best gas pool heater roundup lines up Hayward, Pentair, and Raypak’s natural gas models by BTU size and price. Worth a look before you decide: Raypak undercuts both brands on price at comparable BTU ratings, Gulfstream’s HE-RA lineup — now sold under Pentair itself — beats Pentair’s own UltraTemp on price at a similar COP, Jandy is the third major gas-and-heat-pump brand if you’re already running its AquaLink automation, though its dealers hide pricing more than Hayward or Pentair do, Sta-Rite — a Pentair-owned brand — sells the same MasterTemp engineering under a different name through wholesale dealers, and AquaCal is the go-to independent brand for hot, salty Gulf Coast conditions if none of the big two quite fit. Whichever brand you land on, a fitted pool heater cover is a cheap way to keep either cabinet protected between uses. And if you haven’t settled on gas vs. heat pump yet, our gas vs. heat pump breakdown covers that decision first. For a full warranty and price-tier breakdown across every brand on this page, see our pool heater brands compared guide.