
Pentair MasterTemp Low NOx Pool Heater, 250,000 BTU Natural Gas, Electronic Ignition, HD Cupro-Nickel
Quick overview
- Heavy duty heat exchanger The cupro-nickel HD exchanger is the version built for low pH, high flow and heavy use.
- 250,000 BTU on natural gas Sized for residential inground pools that need real recovery, not just a top up.
- Low NOx Meets Low NOx emission requirements, which matters where local code calls for it.
- Electronic ignition No standing pilot to relight, and no pilot gas burning between cycles.
- Digital control Digital temperature control with indicator lights that show what the heater is doing at a glance.
- Compact and quiet The small footprint and quiet running keep it from dominating the equipment pad.
Frequently bought together

MasterTemp Low NOx Pool Heater, 250,000 BTU Natural Gas, Electronic Ignition, HD Cupro-Nickel
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Product details
The Pentair MasterTemp 460806 is a 250,000 BTU natural gas pool heater with electronic ignition, digital temperature control and a heavy duty cupro-nickel heat exchanger. It is a Low NOx unit, which is what local code usually asks for on new gas installs.
Why the HD exchanger
The heavy duty version is built for water that is hard on a heater: low pH, high flow rates, or a pool that runs long hours. Cupro-nickel takes that better than standard copper, and the exchanger is the part that decides how long a gas heater lasts.
Running it
Digital control sets the temperature the way a house thermostat does, and indicator lights show the operating state without a manual in hand. Electronic ignition means there is no standing pilot to relight after a windy night.
On the pad
The compact cabinet and quiet operation keep it from taking over the equipment pad. Gas heaters need correct gas line sizing and venting, so have the install checked against the manufacturer guide before firing it.
| Brand | Pentair |
|---|---|
| Manufacturer part number | 460806 |
| UPC | 788379745486 |
| Model | MasterTemp |
| BTU input | 250,000 BTU |
| BTU rating listed by the manufacturer | 250,000 - 300,000 BTU |
| Fuel | Natural gas |
| Emission | Low NOx |
| Ignition type | Electronic |
| Heat exchanger | Heavy duty cupro-nickel |
| Temperature control | Digital |
| Pool type | In ground, residential |
| Shipping weight | 124 lb |
| Ships | Freight |
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