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Factory Direct Heater Parts

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Part #	Alt Part #	Description	Shipping Method
ERK		External Relay Kit for standard environments	UPS or USPS

Notes	Used On	Voltage	Gas Type
The External Relay Kit accessory is used to control multiple heaters with one thermostat. This can mount on or near the heater. One ERK is required per heater. Used in standard environments. For harsh environments, use ERK-HE	DX3L, LS3, LD3, HL2, and HL3 models only	N / A	N / A

Notes

Used On

Voltage

Gas Type

The External Relay Kit accessory is used to control multiple heaters with one thermostat.

For harsh environments, use ERK-HE

DX3L, LS3, LD3, HL2, and HL3 models only

N / A