Pool Heating & Cooling

Keep your pool at the perfect temperature year-round with energy-efficient heaters, heat pumps, and chillers. Shop pool heating & cooling at Pool Supply 4 Less from brands including Pentair, Hayward and Sta-Rite. Popular picks include Pentair MasterTemp Pool Heater 400,000 BTU Natural Gas and Hayward Natural Gas Pool Heater 400K Low NOx Heater.

  • Save 24%
    Pentair MasterTemp® 460732 Digital High Performance Low NOx Pool and Spa Heater; 250K BTU, Natural Gas
    Pentair MasterTemp Pool Heater 400,000 BTU Natural Gas - 460736
    SKU: 460736
    $3,869
    $5,119
    In stock
  • Save 26%
    Pentair Max-E-Therm® SR400NA 400 Natural Gas Pool & Spa Heater 400K BTU
    Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater - SR400NA
    SKU: SR400NA
    $3,999
    $5,475
    In stock
  • Save 26%
    Pentair MasterTemp Pool Heater 400,000 BTU Natural Gas HD 460805
    Pentair MasterTemp Pool Heater 400,000 BTU Natural Gas HD - 460805
    SKU: 460805
    $4,099
    $5,588
    In stock
  • Save 29%
    Pentair 460934 Ultratemp® 140 Heat Pump 143K BTU 230V Almond
    Pentair UltraTemp 140 Pool Heat Pump 143K BTU - 460934
    SKU: 460934
    $5,249
    $7,440
    In stock
  • Save 25%
    Pentair MasterTemp® 460732 Digital High Performance Low NOx Pool and Spa Heater; 250K BTU, Natural Gas
    Pentair MasterTemp Heater 250,000 BTU Natural Gas Low Nox - 460732
    SKU: 460732
    $3,079
    $4,141
    In stock
  • Save 26%
    Pentair MasterTemp® 460732 Digital High Performance Low NOx Pool and Spa Heater; 250K BTU, Natural Gas
    Pentair MasterTemp Pool Heater 400,000 BTU Propane Low Nox - 460737
    SKU: 460737
    $3,869
    $5,237
    In stock
  • Save 26%
    Pentair Max-E-Therm® SR400NA 400 Natural Gas Pool & Spa Heater 400K BTU
    Sta-Rite Pool Heater MAX-E-THERM Propane - SR400LP
    SKU: SR400LP
    $3,999
    $5,475
    In stock
  • Save 26%
    Pentair Max-E-Therm® SR400NA 400 Natural Gas Pool & Spa Heater 400K BTU
    Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater Cupro-Nickel - SR400HD
    SKU: SR400HD
    $4,199
    $5,685
    In stock
  • Save 23%
    Raypak Electric Element 11KW - 001802F
    Raypak Electric Element 11KW - 001802F
    SKU: 001802F
    $165
    $215
    In stock
  • Save 27%
    Pentair Mastertemp 125 Heater Natural Gas With Cord - 461059
    Pentair Mastertemp 125 Heater Natural Gas With Cord - 461059
    SKU: 461059
    $2,049
    $2,807
    In stock
  • Save 28%
    Pentair 460934 Ultratemp® 140 Heat Pump 143K BTU 230V Almond
    Pentair UltraTemp 110 Pool Heat Pump - 460932
    SKU: 460932
    $4,279
    $6,009
    In stock
  • Save 27%
    Pentair Max-E-Therm® SR400NA 400 Natural Gas Pool & Spa Heater 400K BTU
    Sta-Rite Pool Heater MAX-E-THERM - SR200NA
    SKU: SR200NA
    $3,299
    $4,562
    In stock
  • Save 24%
    Raypak Heater D-2 Power Vent - 009832
    Raypak Heater D-2 Power Vent - 009832
    SKU: 009832
    $669
    $883
    In stock
  • Save 27%
    Pentair 460934 Ultratemp® 140 Heat Pump 143K BTU 230V Almond
    Pentair UltraTemp 120Q Quiet Pool Heat Pump - 460833
    SKU: 460833
    $4,869
    $6,738
    In stock
  • Save 29%
    Pentair Max-E-Therm® SR400NA 400 Natural Gas Pool & Spa Heater 400K BTU
    Sta-Rite Pool Heater MAX-E-THERM Natural Gas Heater - SR333NA
    SKU: SR333NA
    $3,799
    $5,377
    In stock
  • Save 26%
    Pentair MasterTemp® 460732 Digital High Performance Low NOx Pool and Spa Heater; 250K BTU, Natural Gas
    Pentair MasterTemp Pool Heater 250,000 BTU Propane Low Nox - 460733
    SKU: 460733
    $3,079
    $4,211
    In stock
  • Save 23%
    Raypak RP2100 PR406AENC Digital Natural Gas 399K BTU Pool Heater - 009219
    Raypak RP2100 PR406AENC Digital Natural Gas 399K BTU Pool Heater - 009219
    SKU: 009219
    $4,426
    $5,754
    In stock
  • Save 23%
    Pentair MasterTemp® 460732 Digital High Performance Low NOx Pool and Spa Heater; 250K BTU, Natural Gas
    Pentair MasterTemp Pool Heater 300,000 BTU Natural Gas - 460734
    SKU: 460734
    $3,799
    $4,983
    In stock
  • Save 23%
    Raypak Electric Element 5.5KW - 001801F
    Raypak Electric Element 5.5KW - 001801F
    SKU: 001801F
    $169
    $220
    In stock
  • Save 26%
    Pentair Mastertemp 125 Heater Propane With Cord - 461061
    Pentair Mastertemp 125 Heater Propane With Cord - 461061
    SKU: 461061
    $2,059
    $2,807
    In stock
  • Save 23%
    Raypak PR206AENC Digital Natural Gas 200K BTU Pool Heater - 009216
    Raypak PR206AENC Digital Natural Gas 200K BTU Pool Heater - 009216
    SKU: 009216
    $3,023
    $3,930
    In stock
  • Save 23%
    Raypak Heater D-2 Power Vent - 009833
    Raypak Heater D-2 Power Vent - 009833
    SKU: 009833
    $729
    $948
    In stock
  • Save 29%
    Pentair Max-E-Therm® SR400NA 400 Natural Gas Pool & Spa Heater 400K BTU
    Sta-Rite Pool Heater MAX-E-THERM Propane Heater - SR333LP
    SKU: SR333LP
    $3,799
    $5,377
    In stock
  • Save 23%
    Raypak Control Circuit Board (After 2003) 100-10000345 - 013464F
    Raypak Control Circuit Board (After 2003) 100-10000345 - 013464F
    SKU: 10010000345
    $349
    $454
    In stock