

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The Oxbox 5JAYHTR1A15BK is a 15 kW electric heat kit designed for installation inside compatible air handler units. It adds resistance heating capacity to a split system, allowing the air handler to provide supplemental or emergency heat without a separate furnace. The kit integrates directly into the air handler cabinet and is controlled through the system's existing low-voltage thermostat wiring. HVAC technicians install this component during system setup or as a field-installed upgrade when heating capacity needs to be added to an existing air handler installation.
This heat kit is rated for use with R-454B refrigerant air handlers, making it suitable for systems built around the lower-GWP refrigerant now standard in new residential and light commercial equipment. It is a field-installed electric resistance heat package intended for split-system applications where a dedicated gas furnace is not part of the design. Typical installations include residential new construction, multifamily units, and retrofit projects where electric heat is the preferred or required heating source.
Designed for use with R-454B air handlers per manufacturer specification. Consult the air handler installation manual to confirm heat kit compatibility before installation.
Installation should be performed by a licensed HVAC technician in accordance with NEC requirements for electric heating equipment and all applicable local codes. Disconnect and lock out all power to the air handler before handling the heat kit or any internal components. Verify that the air handler's electrical supply circuit is properly sized for the added 15 kW load before energizing. Do not energize the heat kit without confirming adequate airflow is present, as operation without sufficient airflow can damage the heating elements.
Thanks for subscribing!
This email has been registered!