Sta-Rite Max-E-Therm Pool Heater, 400K BTU, Natural Gas

Pentair  |  SKU: SR400NA
$4,49900/ea
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Description

The Pentair Sta-Rite SR400NA is a 400,000 BTU natural gas pool and spa heater designed to raise and maintain water temperature for larger residential pools and attached spas. It uses electronic ignition with a flame strength sensor, a full-text digital display for on-board diagnostics, and a standard copper heat exchanger. This heater is compatible with the Pentair IntelliCenter Control System for integration into an automation setup. It supports 120V or 240V single-phase power (60 Hz) and is built for water flow rates from 40 to 120 GPM, with low-NOx certification and up to 84% thermal efficiency.

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Additional Information

Technical Specs

Part Name
Pentair (Sta-Rite) Max-E-Therm SR400NA Pool Heater
Model Number
SR400NA
Heater Type
Gas
Fuel Type
Natural Gas
Heat Output
400,000 BTU/hr
Efficiency
84%
Temperature Range
68–104 °F
Water Flow Rate
40 GPM (minimum)
Water Connection Size
2" FPT (includes 2" threaded unions)
Gas Connection Size
1" NPT (1" dia. or larger recommended at heater)
Gas Pressure
Minimum inlet 4" WC
Maximum inlet 14" WC
Manifold -0.2 ± 0.1 " WC
Vent Type
Power Vent (induced-draft/blower-assisted)
Ignition Type
Hot Surface (HSI) / electronic ignition
Control Type
Digital (rotating/top-mount display; diagnostics)
Mounting Type
Floor (equipment-pad mount)
Installation Type
Indoor / Outdoor
Dimensions
31.94 x 25.15 x 30.03 inches (L x W x H)
Certifications
CSA (ANSI Z21.56 / CSA 4.7), Low-NOx certified
Includes
Heater
bulkhead/unions (2" threaded unions)
control/display
owner manual
Warranty
2 Year Limited Warranty
Shipping Dimensions
27.75 x 34.25 x 32 inches
Product Weight
138 pounds
Pickup Only / Local Freight Delivery:
This item is not eligible for standard parcel shipping. Free pickup or local delivery within 60 miles of one of our locations.

Resources

User Manual User Manual
Data Sheet / Brochure Data Sheet / Brochure

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