⚙️ Key Specs (Model 460734)
- Model: Pentair MasterTemp 300
- Part #: 460734
- BTU output: 300,000 BTU (natural gas)
- Fuel type: Natural Gas (LP version is 460735)
- Heater type: High-efficiency gas pool & spa heater
- Weight: ~136 lbs
- Electrical: 120/240V single-phase
- Heat exchanger: Copper or cupro-nickel (corrosion-resistant option)
- NOx rating: Low NOx (eco-compliant emissions)
🧱 Design & Build
- Compact footprint (small equipment pad friendly)
- Rust-resistant composite exterior
- Digital rotating display (easy viewing from any angle)
- Quiet operation compared to older pool heaters
- Internal pre-mix combustion system for faster ignition
⚡ Performance
- Fast heat-up time (one of its biggest advantages)
- Ideal for:
- Large residential pools
- Attached spas / hot tubs
- Maintains stable temperature even in cooler weather
- High energy efficiency for gas heaters in its class
🧰 Features
- Digital diagnostics + error codes for troubleshooting
- No standing pilot (electronic ignition system)
- User-friendly control panel
- Built-in safety pressure and temperature cutoffs
- Compatible with automation systems (Pentair controls)
🏊 Best Use Case
This heater is commonly used for:
- 20’–40’ residential in-ground pools
- Spa + pool combo systems
- Pools needing fast heating before use (same-day heating)
It is especially popular in setups where people want:
- “heat on demand” (weekend swimming, quick spa use)
