If your pool feels perfect in July but “too cold” in May or September, a heater can turn your pool from “sometimes” to “whenever.” The key is matching the heater type to how you actually swim.
At a Glance: Heat Pump vs Gas
- Heat pump: efficient, steady “set it and hold it” heating (best when you use a cover).
- Gas heater: fastest warm-up for weekends, parties, and cooler nights.
- Heat & cool heat pump: adds the ability to cool the pool when summer water gets too warm.
ProPools Picks
1) Raypak Crosswind 65-I (Heat & Cool Inverter Heat Pump – 61,000 BTUH)
- Why it made the list: premium comfort control with inverter technology plus the ability to both heat and cool.
- Best for: owners who want stable water temperature, quieter operation, and the widest comfort range across the season.
- Consider before buying: confirm electrical capacity, airflow/clearances, and that your plumbing/flow setup matches the unit.
View Raypak Crosswind 65-I
2) Hayward HeatPro HP50HA2 (50,000 BTU Heat Pump – Above-Ground Sized)
- Why it made the list: practical above-ground heat pump sizing, simple digital control, and a titanium heat exchanger for corrosion protection.
- Best for: families who swim often and want efficient day-to-day heating (especially with a cover).
- Consider before buying: heat pumps work best as maintenance heaters—plan for steady schedules rather than “heat it all at once.”
View Hayward HeatPro HP50HA2
3) Pentair MasterTemp 125 (125,000 BTU Gas – Natural Gas or Propane)
- Why it made the list: compact, high-performance gas heating when you want fast warm-up.
- Best for: “heat it now” swimming, weekends, and cooler nights.
- Consider before buying: gas installation typically needs a qualified pro for fuel supply and code-compliant setup. Warranty terms can depend on purchase/install conditions.
View MasterTemp 125 (Natural Gas)
View MasterTemp 125 (Propane)
4) Raypak 156A (150,000 BTU Gas – Natural Gas or Propane, including High-Altitude options)
- Why it made the list: higher BTU output for faster heat-up and strong outdoor-oriented design.
- Best for: larger above-ground pools or anyone prioritizing quick warm-up.
- Consider before buying: confirm fuel type, elevation model, and plumbing connections. Some SKUs may require freight shipping.
View Raypak 156A (Natural Gas)
View Raypak 156A (Propane)
High-Altitude Options (pick the correct model for your elevation)
Best Value (Gas): Raypak 106A (105,000 BTU – Natural Gas or Propane)
- Why it’s a value pick: solid BTU output for many above-ground pools without jumping to 150k BTU.
- Best for: owners who want gas heat-up speed at a smaller equipment scale.
- Consider before buying: confirm venting/clearances and pro installation needs for gas supply and code compliance.
View Raypak 106A (Natural Gas)
View Raypak 106A (Propane)
Buyer’s Guide: Choose the Right Heater
1) Match the heater to how you swim
- Heat pump: efficient, steady heating (best for frequent swimming).
- Gas: fastest warm-up (best for weekends and cool nights).
- Heat & cool: heat in spring/fall, cool in peak summer.
2) Use a cover (this is the cheapest “heater upgrade”)
Solar heating with a blanket/cover reduces heat loss dramatically and helps any heater maintain temperature with less runtime.
3) Confirm compatibility
- Electrical (heat pumps): correct voltage/breaker capacity and good airflow clearance.
- Fuel & code (gas): NG vs propane, clearances/venting, and professional installation practices.
- Plumbing: many above-ground pools are 1-1/2"; some heaters use 2" connections—plan adapters or hard plumbing.
4) Protect the heater long-term
- Maintain balanced water chemistry.
- Winterize properly if you close the pool.
- Use a cover at night and whenever the pool isn’t in use.
