Product Overview

The Pentair Max-E-Therm SR200NA Natural Gas Heater is a compact, high-performance pool and spa heater designed for dependable residential heating. With a 200,000 BTU natural gas heating capacity, this model is a strong choice for smaller to medium residential pools, spas, and pool/spa combination systems.

The Max-E-Therm series is known for its lightweight cabinet design, efficient heating performance, and user-friendly digital controls. Its compact footprint makes it easier to fit on many residential equipment pads, while the corrosion-resistant exterior helps support long-term outdoor use.

With natural gas operation, electronic ignition, digital control, and Pentair’s service-friendly design, the SR200NA delivers reliable heating performance for homeowners who want fast heat-up, simple operation, and trusted Pentair quality.

Ideal For

Residential swimming pools

Spas and hot tubs

Pool and spa combination systems

Natural gas installations

Smaller to medium pool systems

Equipment pads with limited space

Replacing older 200K BTU natural gas heaters

Homeowners wanting compact, efficient gas heating

Key Features

200K BTU Heating Performance: The Pentair Max-E-Therm SR200NA provides 200,000 BTU of natural gas heating power, making it suitable for residential pool and spa systems that need dependable heating and efficient temperature recovery.

Natural Gas Operation: Designed for use with natural gas, this model is a practical choice for homes with existing natural gas service.

Compact Max-E-Therm Design: The Max-E-Therm cabinet is designed to be compact and lightweight, helping simplify installation on residential equipment pads.

Digital Temperature Control: The built-in digital control panel allows users to set and monitor pool or spa temperature with ease.

Electronic Ignition: Electronic ignition provides reliable startup when there is a call for heat and eliminates the need for a constant standing pilot.

Corrosion-Resistant Cabinet: The heater’s durable cabinet is designed for outdoor pool equipment environments and helps resist corrosion over time.

Residential Pool & Spa Compatibility: Built for residential pool and spa heating applications, including pool/spa combination systems where reliable natural gas heating is required.

Service-Friendly Design: Pentair’s heater layout is designed for convenient access to key components, helping simplify maintenance and service.

Benefits

The Pentair Max-E-Therm SR200NA gives homeowners a dependable balance of heating power, compact design, and easy operation. Its 200K BTU output is well suited for smaller to medium pools and spas, helping extend the swim season and maintain comfortable water temperatures.

The digital controls make everyday use simple, while electronic ignition supports reliable heater startup. Its compact cabinet design makes it a practical choice for replacement installations or equipment pads where space is limited.

Specifications

Warranty & Compatibility

Important Installation Notes

This heater should be installed by a licensed pool, gas, or HVAC professional. Proper natural gas line sizing, electrical wiring, water flow, bonding, ventilation, clearances, and local code compliance are required for safe operation and warranty protection.

This model is designed for natural gas. It should not be used with propane unless the correct factory-approved propane model is selected.

Customers in emissions-regulated areas should confirm local code requirements before purchase and installation.

Customer-Facing Q&A

Q: Is this heater natural gas or propane?
A: This model, Pentair Max-E-Therm SR200NA, is the natural gas version.

Q: How many BTUs is this heater?
A: This heater is rated at 200,000 BTU, also commonly referred to as 200K BTU.

Q: Can this heater be used for a spa?
A: Yes. The SR200NA can be used for residential pool and spa heating when properly sized and installed.

Q: Does this heater have digital controls?
A: Yes. The Max-E-Therm heater includes digital temperature controls for easy operation.

Q: Does this heater use electronic ignition?
A: Yes. It uses electronic ignition, so it does not rely on a constant standing pilot.

Q: Is this heater good for smaller pools?
A: Yes. The 200K BTU size is commonly used for smaller to medium residential pools and spas.

Q: Is this a Low NOx heater?
A: This listing is for the standard SR200NA model. Customers in areas with emissions requirements should confirm whether a Low NOx version is required.

Q: Does this heater require professional installation?
A: Yes. Gas pool heaters must be installed by a qualified professional to ensure proper gas, electrical, venting, water flow, and bonding compliance.