
Pentair MasterTemp Low NOx Commercial Natural Gas Pool Heater, 250K BTU ASME, 461020
Quick overview
- 250,000 BTU input Pentair rates the BTUH input on this MasterTemp at 250,000.
- ASME rated The ASME version of the MasterTemp, which is what commercial specifications normally call for.
- Heavy duty cupro nickel The high performance, heavy duty exchanger, chosen where water chemistry is hard on plain copper.
- Digital control Digital control type with electronic ignition, so there is no standing pilot to relight.
- Low NOx Built to the Low NOx standard that many regions now require on new gas heaters.
- 120 gpm through 2 inch Rated for 120 gpm flow with 2 inch water connections and a 3/4 inch gas connection.
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MasterTemp Low NOx Commercial Natural Gas Pool Heater, 250K BTU ASME, 461020
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Product details
The Pentair 461020 is the commercial MasterTemp, an ASME rated natural gas pool and spa heater with 250,000 BTU input and a heavy duty cupro nickel heat exchanger.
What the commercial version adds
Two things separate it from the backyard MasterTemp. It is ASME rated, which is what most commercial specifications and inspectors ask for on a public pool. And the exchanger is the high performance, heavy duty cupro nickel build, which holds up better where water chemistry runs hard on plain copper. On a commercial pool that gets shocked, corrected and pushed harder than a home pool, that difference shows up in the service life.
Controls and firing
Control is digital with electronic ignition, so there is no standing pilot burning fuel between cycles and nothing to relight after a windy night. It is Low NOx rated, which matters in the regions that now require it on new gas installations.
Planning the installation
The cabinet measures 23.02 inches wide, 32.61 inches deep and 28.15 inches high. Water connections are 2 inch, the gas connection is 3/4 inch, and the heater is rated to 120 gpm of flow. Electrically it wants 120/240 VAC, 60 Hz, single phase. Gas heater installation is licensed work, and a commercial ASME heater is not an install to attempt without one.
| Brand | Pentair |
|---|---|
| Manufacturer part number | 461020 |
| UPC | 788379858261 |
| Item | Low NOx Pool and Spa Heater |
| Type | High Performance, Heavy-Duty |
| Gas Type | Natural Gas |
| Control Type | Digital |
| BTUH Input | 250,000 |
| Cabinet Width | 23.02" |
| Cabinet Depth | 32.61" |
| Cabinet Height | 28.15" |
| Gas Connection | 3/4" |
| Water Connection | 2" |
| Voltage Rating | 120/240 VAC |
| Frequency Rating | 60 Hz |
| Phase | 1-Phase |
| Flow Rate | 120 gpm |
| Shipping weight | 144 lb |
| Ships | Freight |
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