Sta-Rite - Pro Grade - Max-E-Therm, SR400NA, Low NOx 400,000 BTU, Natural Gas Pool & Spa Heater - Premium Warranty

Item No. 300214 | Manufacturer SKU: SR400NA
Item No. 300214 | Manufacturer SKU: SR400NA
Sta-Rite  Pro Grade  Max-E-Therm SR400NA Low NOx 400,000 BTU Natural Gas Pool  Spa Heater  Premium Warranty
$4,399.99

Installation Available! Call 1-800-537-5437 for details!

The Sta-Rite Max-E-Therm SR400NA 400K Natural Gas Pool Heater brings you quiet, efficient heating for your pool and spa. More Details
How to get it
In-store Pickup - Not Available for this item

The Sta-Rite Max-E-Therm SR400NA 400K Natural Gas Pool Heater brings you quiet, efficient heating for your pool and spa.
  • 400,000 BTU
  • Natural gas
  • High efficiency rating
  • Designed for fueling and ignition
  • Designed to work with pool or spa
  • Convenient, user-friendly control panel
  • Dura-Glas hardware
  • Certified for low NOx emissions
  • Top mount control panel with digital display
  • Self diagnostics

The Sta-Rite Max-E-Therm Natural Gas Pool Heater brings you quiet, efficient heating for your pool and spa. Its compact design takes up less room on the equipment pad and its easy-to-read digital display rotates for simple convenience and management.

Using natural gas, the Max-E-Therm is reliable and boasts higher heating efficiencies. Connecting to your natural gas line, the Sta-Rite Max-E-Therm SR400NA is easy to install, utilizing its built-in inlet and outlet union connections. Max-E-Therm Natural Gas heaters are designed to be quiet, they're certified for low NOx emissions, and are eco-friendly, making them a dependable and safe heater for you and the environment. The SR400NA is a standard unit, equipped with a copper heat exchanger making this unit not suggested for salt water.

Common Questions:

What are the dimensions of the unit?
  • Heater Dimensions: (LxWxH) 31.94" x 25.15" x 30.03"
  • Weight: Approx. 140 lbs
Does it come with unions?
  • Yes, this unit comes with 2" threaded unions.
Heat Exchanger type?
  • Copper Heat Exchanger
Is this unit Low Nox?
  • Yes, this unit meets all state air quality regulations.


California Residents WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Compact Design
The Max-E-Therm's small design means installation is convenient and requires little room for set up. Built as one of the lightest heaters in its class, it makes transportation and installation simple and hassle free

Installation Type: Residential
Elevation: 0 - 2,000 ft
Ignition: Electronic
Fuel Type: Natural Gas
Heat Exchanger: Copper
Pool Type: Spa/Hot Tub
Product Type: Pool Heater
Emission: Low NOx
Pool Type: In Ground
Controls: Digital
Heat Output: 400,000 BTU
Energy Efficient: Yes
Manufacturer: Sta-Rite

Two (2) Year Limited Warranty on Product, see Owner's Manual for a full description of warranty claims and coverage details.