# Master temp

> Master temp product guide at https://mastertemp.org.

Last updated: 2026-08-19.
Full knowledge base: https://mastertemp.org/llms-full.txt (~1000 tokens). Targeted answers: GET https://mastertemp.org/llms.php?query=your+question (plain text).

## Products

- [400K BTU Natural Gas Pool Heater](https://mastertemp.org/) — ASIN B08ZBGFZWP. The MasterTemp 400,000 BTU natural gas heater warms pool water fast enough for daily swims, built for residential and commercial equipment pads.
- [250,000 BTU Propane Pool Heater](https://mastertemp.org/) — ASIN B08Z7PLL4Z. The MasterTemp EC-462027 propane heater delivers 250,000 BTU through an HD cupro-nickel heat exchanger built for low-pH, high-flow pools.
- [MasterTemp 400,000 BTU Natural Gas Pool Heater](https://mastertemp.org/) — ASIN B0GQDLLCST. The Pentair MasterTemp 400HD pumps 400,000 BTU into pool and spa water, cutting heat-up time on cold mornings.
- [MasterTemp Control Board & Switch Pad Kit](https://mastertemp.org/) — ASIN B0CBSQGZYW. Swap the failed factory board for this 461105 control board when your MasterTemp display goes dark.

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## Pages

- [Home](https://mastertemp.org/): brand overview and every product.
- [About](https://mastertemp.org/about.html)