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3G Electric
REZNOR Hot Surface Igniter, Mfr Part # 121865 - Replacement HVACR Controls, Switches & Thermostats
REZNORReplacement HVACR Controls, Switches & Thermostats

REZNOR Hot Surface Igniter, Mfr Part # 121865

REZNOR Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Hot Surface Igniter.

SKU 3G-OTH-91487

Brand
REZNOR
Item
Hot Surface Igniter, Mfr Part # 121865
Part Number
121865
Category
Replacement HVACR Controls, Switches & Thermostats
Available to Order
Also known as:121865REZNOR
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

REZNOR
Manufacturer Part Number
121865
Product Type
Hot Surface Igniter

Technical Documents

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REZNOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

REZNOR Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Hot Surface Igniter.

Frequently Asked Questions

What is a REZNOR hot surface igniter used for?

A REZNOR hot surface igniter is used to ignite gas in HVAC heating equipment such as unit heaters and furnaces. It provides reliable ignition by heating a silicon carbide or nitride element to a high temperature, eliminating the need for a standing pilot light.

What are the specifications of the REZNOR hot surface igniter part 121865?

The REZNOR hot surface igniter part number 121865 is a replacement ignition component for gas-fired heating systems. Key specifications include product type: hot surface igniter, and manufacturer part number: 121865. It is designed for direct OEM replacement in compatible REZNOR equipment.

Where to buy a REZNOR hot surface igniter part 121865 worldwide?

You can source the REZNOR hot surface igniter part 121865 through 3G Electric, which supplies genuine industrial replacement parts worldwide. We handle full logistics, customs clearance, and delivery to your location, ensuring you receive the correct component for your HVAC system.

How to install a REZNOR hot surface igniter?

To install a REZNOR hot surface igniter, first disconnect power and gas supply. Remove the old igniter carefully to avoid breakage, then insert the new part 121865 into the mounting bracket. Reconnect the wiring, restore power, and test for proper ignition. Always follow the manufacturer's manual for your specific model.

Used in

Common applications for REZNOR
Industrial unit heaters — Venter motor and wheel assembly (MPN 220785) for combustion gas exhaust and airflow maintenance.
Commercial rooftop units — Gas valve (MPN 96300) for controlling fuel flow in heating systems.
Make-up air equipment — Pressure switch (MPN 204327) to verify airflow before ignition.
Warehouse heating systems — Fan control (MPN 123976) to regulate airflow in ventilation equipment.
Manufacturing plant heating — Pilot assembly (MPN 125251) for reliable burner ignition.
Reznor HRP400 industrial heaters — OEM blower wheel (MPN 43814) to restore airflow during repairs.
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REZNOR Products

3G Electric supplies REZNOR replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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