Pentair MasterTemp 125 Natural Gas Pool & Spa Heater — Model EC-462024
The Pentair EC-462024 is a compact, high-efficiency natural gas heater designed to quickly and reliably heat residential pools or spas. Its portability and energy-efficient design make it an excellent choice for smaller pools, above-ground pools, or spas up to approx. 15,000 gallons.
Key Features
- 125,000 BTU heating capacity — delivers powerful heat output for small-to-medium pools.
- High thermal efficiency (~82%) — maximizes heat output while reducing fuel consumption.
- Compact, lightweight design — easier to handle, ship, and install than larger heaters.
- Pre-mixed gas combustion technology — provides fast heat-up times so you get warm water quickly.
- 1½″ plumbing connection — compatible with standard pool plumbing for small-to-medium pools and spas.
- Digital control panel with rotating display — user-friendly and easy to program regardless of installation orientation.
- Certified low-NOx emissions and suitable for indoor or outdoor use (with proper venting) — environmentally responsible and versatile.
- Durable, corrosion- and UV-resistant housing for long service life outdoors.
Specifications
- Manufacturer: Pentair
- Model / Part Number: EC-462024 (MasterTemp 125 Natural Gas Heater)
- Heat Output: 125,000 BTU
- Recommended Pool/ Spa Capacity: Up to ~15,000 gallons
- Plumbing Connection: 1½″ (standard PVC pipe compatible)
- Fuel Type: Natural gas (Low-NOx certified)
- Efficiency: Approximately 82% thermal efficiency
- Ignition: Electronic / pre-mixed gas combustion
- Housing: Weather-resistant, corrosion- and UV-resistant outer shell
- Dimensions (approx.): Compact footprint suitable for limited-space equipment pads
Installation & Usage Notes
Ensure your pool plumbing and gas supply meet the heater’s requirements before installation. Position the unit on a stable, level pad with proper ventilation if installed outdoors or indoors. Connect the 1½″ plumbing and natural gas supply per local codes, and configure the digital controller for your desired water temperature. For best performance, maintain proper water flow and periodically inspect the heater and connections.
Why Choose the MasterTemp 125 (EC-462024)
If you’re heating a small- to mid-size pool or spa — especially one up to ~15,000 gallons — the EC-462024 premium natural-gas heater offers a powerful, efficient, and space-saving solution. Its quick heat-up, high efficiency, and ease of installation make it an ideal heater for residential pools where economy, reliability, and performance matter.
