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#2 in Pool HeatersRunner-Up
Pentair MasterTemp 400 Gas Heater
Pentair
$2,500.00 – $3,100.00
400,000 BTU natural gas heater with 82 percent thermal efficiency that raises a 20,000-gallon pool multiple degrees per hour. Rotating digital display, pre-mixed combustion, and a compact footprint make it the most-installed gas heater in the US.
9.2
Excellent
Consensus
Don't buy this if…
- Do not buy 400k BTU for a small above-ground pool, where a smaller unit heats fine and short-cycles less.
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