Rheem Pool and Spa Heater

Rheem Pool and Spa Heater

All models

PolyTuf Textured Powder-Coating

The Rheem gas heater has a polyester-coated, non-corrosive cabinet that is more durable than solventborne- and waterborne-coated metal cabinets. Every piece of sheet metal goes through a 7-stage wash system, making certain the powder paint has a perfect bond. Underneath the tough, yet beautiful finish you will find galvanized metal that offers superior rust prevention and years of durable service.

Stainless Steel Heater Base

The interior base pan is manufactured from 400 series stainless steel to help prevent rust and corrosion. Rheem is the only heater manufacturer to offer this as standard equipment.

Wind-Resistant Design

This heater is designed to draft naturally in outdoor installations with its exclusive low-profile design. It is so thoughtfully and carefully designed it actually protects itself from the things that tend to stifle ordinary pool and spa heaters. It delivers uninterrupted heating performance regardless of falling leaves, wind, airborne debris, rain, downdrafts, updrafts, sleet, snow, etc.

Polymer Headers

Polymer headers prevent rust stains from harming your pool’s surface, giving you years of trouble-free swimming pleasure.

All-Copper-Fin-Tube Heat Exchanger

The fin tubes of the heat exchanger are each made from a single piece of extruded copper. This integral-fin design allows maximum heat transfer to be attained and


Stainless Steel Tube Sheet

Stainless steel tube sheets are used on all Rheem heaters with the polymer headers.  This allows for a completely nonferrous waterway, leaving your pool truly rust-free.

CPVC 2″ Water Connections

Standard with every Rheem is a set of 2″ slip-fit CPVC water connections to make your installation secure and effortless.

Condensation Protection

The Unitherm Governor helps reduce condensation from low inlet water temperatures.  It automatically regulates the water flow to help keep the water temperature in the heat exchanger above 105F. Both water temperature and water flow rate are controlled to eliminate condensation, sooting, and scale build-up that can shorten heater life.

High Flow Rates

The Rheem gas heater comes with an automatic bypass built into the header. You’ll find that the heater is capable of handling water flow at a rate up to 125 gpm.

Burner Tray

Every burner tray is built to last, from the stainless steel burners to the aluminized metal used in the heat sensitive areas. Innovative design allows for the easy removal of the tray and burners for servicing.

Fire Tile

By using this space-age ceramic fiber material the heater won’t retain residual heat after it is turned off, this allows it to be installed without the use of costly metal heat sinks.


Energy-smart Rheem heaters consistently achieve the highest efficiency ratings. They meet all federal and state standards.

Low Emissions

The Rheem Low NOx gas heater complies with the most stringent state and county emissions laws. NOx emissions are less than 40 nanograms per joule.

Fan-Assisted Combustion

A fan delivers cool, controlled combustion air to the sealed burners.

Digital Control

Microprocessor-Controlled Thermostat

The Rheem Digital gas heater features a microprocessor-based control center. This control allows you to set your pool or spa temperature precisely at your favorite setting just by pressing the up or down temperature control buttons.


On-board diagnostic controls let the user and the service professional know what is going on with the heater at all times. All information is presented in real English, no cryptic codes to decipher. In the event that you would ever have a problem with the heater, the digital display will indicate the source.

Flame Strength Indicator

A pool industry first! The pilot flame signal is monitored with an easy to read visual bar display. 4 bars or less indicate a weak signal, letting the service tech know that the pilot should be checked. 5 bars or more indicate good flame rectification. Every heater is test fired before packaging, and the flame strength is verified to be strong before leaving the factory.

Voltage Monitor

Transformer output power can be monitored by the circuit board. This helps service techs diagnose issues quicker and more efficiently.

Cycle Counter and Run Time Monitor

The control captures every cycle of the main gas valve as well as how long it stays open. This offers valuable and useful feedback to the service tech. By monitoring the run times on multiple unit installations, the load can be evenly distributed among the units, preventing excessive wear and tear on one unit.


Compatible with most major pool control and remote systems on the market today. Any two-wire or three-wire remote can connect to the heater and be integrated into the pool control system of your choice.

Electronic Ignition

Rheem Digital heaters come standard with intermittent spark ignition pilot safety controls. What this means is that the pilot only comes on when there is a call for heat. This provides an energy-efficient way to control your heater’s gas usage by eliminating the need for a continuous pilot.

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