Pentair MasterTemp High Performance Pool and Spa Heaters 250NA (Natural Gas)

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Pentair SKU: EC-462026
Pentair MasterTemp 250 & 400 - High Performance Pool and Spa Heater

Pentair MasterTemp High Performance Pool and Spa Heaters 250NA (Natural Gas)

FG icon
Pentair SKU: EC-462026
Regular price $4,215.00 Sale price $3,009.00 Save 29%
  • Unlock Specials Savings On Select Items When Added To Cart
  • Item Qualifies For Free Gift At Checkout
  • Qualifies For Free Shipping in the USA
Shipping calculated at checkout.

Pentair MasterTemp 250 & 400: High-Performance Pool and Spa Heaters

The MasterTemp line of Pentair pool heaters offers the convenience, efficiency, and reliability that pool owners need. These units are just as easy to use as your home heating system. The user-friendly LCD screen and troubleshooting icons make the operation and monitoring of the system a snap. MasterTemp's quiet operation and compact design won't intrude on leisure time spent poolside. The heavy-duty unit with a cupro-nickel exchanger stands up to even the harshest applications like high flow, low pH, or heavy use.

MasterTemp Heater Features 

  • Heats fast - no long waits before enjoying your pool or spa!
  • Best-in-class energy efficiency
  • Manual gas shut-off when service is required
  • Eco-friendly MasterTemp Heater is certified for low NOx emission and outperforms industry standards
  • Rotating digital display allows for easy viewing
  • Tough, rustproof exterior handles the heat and weathers the elements
  • Certified for outdoor and indoor installations

Pentair MasterTemp Warranty

Products purchased from an Authorized Pentair Online Reseller (products beginning with EC-) receive a one (1) year (parts only) warranty from the date of purchase. The exceptions are IntelliChlor cells and IntelliFlo SVRS pumps which receive a two (2) year warranty. EC products are not eligible for the bundled three (3) year extended warranty.


250NA (Natural Gas) Dimensions: 21x23x28.2

250LP (Propane) Dimensions: 21x23x28.2 

400NA (Natural Gas) Dimensions: 21x23x28.2

400LP (Propane) Dimensions: 21x23x28.2

ALL SHIPPING IN THE USA IS FREE - Some restrictions apply

· Most Orders Ship Free "Standard" To USA Domestic Mailing Addresses.

· We proudly ship with FedEx, USPS, UPS, and OnTrac. ***

· Certain items may be upgraded for shipping…ON US!

· Orders above $300 could be required to have signature confirmation

· All Pool Pumps and Pool Vacuums WILL require a signature upon delivery

· Some Expedited Shipping will incur additional handling time if Pre-Order status is displayed ****

***Shipping Carrier is determined upon delivery speed needed for each order. Paid Expedited Shipping will be shipped at the speed requested but Carriers are subject to change without notice.

**** Handling time varies with inventory and availability. Please reach out with any questions or concerns regarding the inventory of your item.


USPS First Class Mail and Priority Mail shipping is NOT GUARANTEED. Displayed transit times are estimates and not Guarantees.

Expedited Shipping via FedEx/UPS: Monday-Friday before 1:00 PM Arizona Time

We do NOT allow changes in address with Carriers after items are shipped.


Weekend deliveries are the future, and we are striving to meet all the needs of our customers. However, the carriers are attempting on rolling the processes on certain zip codes throughout the mainland 48 states only. Restrictions do apply.

Standard and expedited shipping methods through all carriers cannot guarantee Saturday deliveries due to restrictions to certain carrier zoning.


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