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Pentair
Pentair MasterTemp High Performance Gas Heater
Pentair MasterTemp High Performance Gas Heater
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The MasterTemp family scales from a 175 to a 400 model, letting a dealer match heater output to pool volume without switching product lines. Standard units use a copper heat exchanger rated at 84% thermal efficiency; heavy-duty cupro-nickel versions trade a couple efficiency points for better resistance to aggressive water chemistry. Every size ships as a natural gas or propane SKU, with digital ignition and flame sensing standard across the range.
- Five BTU sizes (175/200/250/300/400, per model number) covering small to large residential pools
- 84% thermal efficiency with copper heat exchanger; 82% on heavy-duty cupro-nickel HX models
- Natural gas and propane SKUs available at every size
- Digital display with ignition control and flame sensor
- CSA/cUL US listed
- Weight ranges 120-149 lb depending on model size
| Model family | MasterTemp (175, 200, 250, 300, 400) |
| MPN (175 NG) | 460792 (propane 460793) |
| MPN (200 NG) | 460730 (propane 460731; ASME 461000/461001) |
| MPN (250 NG) | 460732 (propane 460733; ASME 460771/460772; HD NG 460806) |
| MPN (300 NG) | 460734 (propane 460735) |
| MPN (400 NG) | 460736 (propane 460737; HD NG 460805; ASME variants 460775/460776/461021) |
| Thermal efficiency | 84% (copper HX) / 82% (heavy-duty cupro-nickel HX) |
| Weight | 120-149 lb, by model size |
| Certifications | CSA/cUL US listed |
| Controller | Digital display, ignition control with flame sensor |
| Note | Per-model BTU rating not stated on manufacturer page; conventionally model number x 1,000 |
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