RXBH-1724A15J-BR – HEAT KIT (RHEEM, 15 KW, SEER2)

Electric heat kits (also called heat strips) add supplemental or emergency heating to your air handler or heat pump system. This 15 kW kit is designed for Rheem and Ruud SEER2-rated air handlers and includes a legacy board adapter for backward compatibility.

Specs: 15 kW, built-in circuit breaker, smart plug integration, legacy board adapter, OEM Rheem part

Replaces: RXBH-1724A15J-1, RXBH-1724A15J-B, RXBH-1724A15J-BR

Fits: Rheem and Ruud SEER2 air handlers. Check your air handler model for 15 kW heat kit compatibility.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Specs

• TypeRheem genuine OEM heat kit
• Capacity15 kW
• Voltage208/240V (verify)
• OEM CompatibilityRheem

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• RXBH-1724A15J-B
• RXBH-1724A15J-BR

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Fits these models

• Rheem genuine OEM heat kit (RXBH series) — fits Rheem / Ruud RH-series SEER2 air handlers as supplemental electric heat for heat pumps or primary heat for electric-only systems
• Match kW rating to your air handler's max-kW spec and verify the model suffix (BRK / BR) matches your existing electrical configuration
• Common applications: Rheem RH1V / RH1T / RH2T SEER2 air handlers (2024+); older Classic Series air handlers may need different cross-reference

How do I size a heat kit for my air handler?

Match the kW rating to your air handler's tonnage: - 10 kW -- fits 1.5, 2, or 2.5 ton air handlers - 15 kW -- fits 3, 3.5, or 4 ton air handlers - 20 kW -- fits 5 ton air handlers

Can I add electric heat to my heat pump system?

Yes -- heat pumps almost always use electric strips as backup ("auxiliary heat" or "emergency heat"). The thermostat energizes the strips when outdoor temps drop below balance point (typically 35-40 degrees F in DFW). Match the heat kit to your air handler model.

What does the suffix on the part number mean?

The suffix typically indicates breaker configuration: - BRK = factory breaker included - BR = breakerless (you provide the disconnect) - Other suffixes = circuit count, voltage taps, or thermostat compatibility

How long does an electric heat kit last?

20+ years typical for the kit itself; individual heating elements (sheath heaters) may fail in 8-15 years from cycling. Most kits have replaceable elements -- you don't have to replace the whole kit for one bad strip.

Why is my heat kit tripping the high-limit?

Restricted airflow is the #1 cause: clogged filter, dirty blower wheel, undersized return, closed-off supplies. The strips overheat when air doesn't move across them fast enough. Diagnose airflow before condemning the heat kit or limit switch.