- How big a pool will the MasterTemp 400 heat?
- At 400,000 BTU it is sized for medium to large in-ground pools and spas. Actual heat-up time depends on pool volume, cover use and air temperature.
- Does it need a special gas line?
- Yes. A 400,000 BTU natural gas unit needs a gas supply and venting sized for that input, so have a licensed installer check your line before buying.
- Is it a direct replacement for a Pentair Max-E-Therm?
- Not bolt-for-bolt. Owners report the fittings sit about 1½ inches off from a Max-E-Therm, so expect plumbing adjustments.
- How loud is it?
- Pentair markets it as super quiet, and owners describe it as quiet at the poolside. It still needs clearances for airflow and venting.
- What is included with the heater?
- The heater itself with its digital display and manual gas shut-off. Gas piping, venting and installation parts are supplied separately by your installer.
- Is it low-emission certified?
- Yes. It is certified for low NOx emissions, which matters in areas with air-quality rules for gas pool heaters.
- Where is the Pentair MasterTemp 400 Natural Gas Pool Heater cheapest?
- At Hydropool.com, for $3,499.99, 16% under what the other stores charge, as of our latest check.
- What do buyers say about the Pentair MasterTemp 400 Natural Gas Pool Heater?
- Buyers like: Heater works great; Smooth, on-time delivery; Unbeatable price and fast shipping. Common complaints: Order hadn't left the warehouse by the promised delivery date despite a tracking number; Fittings are 1½ inch off from being a bolt-on replacement for a Max-E-Therm.
- Where can I buy the Pentair MasterTemp 400 Natural Gas Pool Heater?
- 13 stores we checked sell it, including Hydropool.com, Pool Supply Depot, Pool Cleaning Parts, PoolSuppy4Less, Poolstoreconnect.