Best Pool Heater for 2026
Our 2026 pool heater rankings for gas and electric heat pump options.
Best Gas Heater Overall: Raypak Digital 406
406,000 BTU, 84-87% thermal efficiency, cupro-nickel heat exchanger, easy field service. $3,850-$4,450. Industry default.
Best Premium Gas: Pentair MasterTemp 400 HD
Heavy-duty cupro-nickel, exceptional reliability, ASME-rated. $4,250-$4,950.
Best for Saltwater: Jandy LXi 400
Cupro-nickel heat exchanger withstands aggressive saltwater chemistry. $3,650-$4,250.
Best Heat Pump: Pentair UltraTemp 140
140,000 BTU titanium heat exchanger, 6.0+ COP. $5,800-$7,250. Best for mild climates (above 50F ambient).
Best Mid-Tier Heat Pump: AquaCal HeatWave
Reliable, US-built, full titanium. $4,850-$6,250.
Recommendation
For most homeowners outside the deepest cold-climate zones, Raypak Digital 406 is the right answer. For saltwater pools, Jandy LXi or Pentair MasterTemp HD. For year-round mild climates, switch to Pentair UltraTemp heat pump for lowest operating cost.