Ningguo Kingcool Import and Export Co., Ltd is a China Home Appliances Parts-Heater manufacturer and one-stop appliance parts supplier. Our heater range covers glass tube quartz heaters and defrost heaters for refrigerators, supported by our own metalized polypropylene film capacitor production and a broad portfolio of air conditioner, refrigerator, refrigeration and washing machine components.
Heater Range for Refrigeration and Home Appliance Assembly
As a Home Appliances Parts-Heater Manufacturers, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.
We supply heaters as part of a complete appliance parts programme. The two core products are the glass tube quartz heater for refrigerators and the glass tube defrost heater for refrigerator parts. Both are built as rugged, reliable heat sources for defrost and warming duties in household refrigeration equipment.
Because we also manufacture metalized polypropylene film capacitors and act as an agent for air conditioner and refrigerator accessories, heater orders can be combined with capacitors, thermostats, defrost timers and control components in a single shipment.
Glass Tube Quartz Heater
Quartz tube construction gives fast heat-up and stable radiant output. This type suits refrigerator applications where a defined warming zone or anti-condensation function is required, and where the heater must fit into an existing cavity without redesigning the liner.
Glass Tube Defrost Heater
Defrost heaters are specified for evaporator defrost cycles. The glass tube format resists moisture during melting periods and is matched to the electrical and thermal load of the refrigeration circuit. We confirm voltage, wattage, length and termination style against the appliance model before quoting.
Where Our Heaters Fit
Our heater products are used in refrigerator and freezer defrost systems, display and storage cabinets, and other home appliance assemblies that require controlled electrical heating. They are supplied to appliance manufacturers, after-sales parts distributors and service organisations that need repeatable fit and function.
- Refrigerator defrost: glass tube defrost heaters matched to evaporator geometry and defrost timer cycles.
- Quartz warming zones: glass tube quartz heaters for defined heating areas inside appliance cavities.
- Service and repair: replacement heaters for after-sales channels, supplied against model references.
- Combined sourcing: heaters shipped together with Defrost Thermostat & Fuse and Defrost Timer components.
Technical Scope and Configuration Options
Heater selection is driven by the working point of the appliance, not by a single catalogue number. We configure each item around the electrical supply, the thermal duty and the mechanical interface of the unit it serves.
| Configuration Parameter | What We Confirm | Typical Options |
|---|---|---|
| Voltage and frequency | Supply standard of the destination market | 110 V, 220–240 V, 50/60 Hz |
| Power rating | Thermal duty of the defrost or warming cycle | Matched to evaporator load and cycle time |
| Tube length and diameter | Cavity geometry and mounting points | Straight or formed glass tube profiles |
| Termination | Harness interface and connector type | Lead length, terminal style, insulation sleeve |
| Mounting hardware | Retention method inside the appliance | Brackets, clips, grommets |
| Protection | Moisture and thermal protection of the element | Sealed ends, sleeving, thermal fuse pairing |
Materials and Build Quality
Glass tube heaters use a quartz or glass envelope around the resistive element, with metal terminals and insulated leads. The envelope protects the element from condensate during defrost and keeps the heat path predictable. End seals and lead insulation are selected for the humidity levels found in refrigeration compartments.
Our capacitor production runs on high-precision slitting and winding equipment with in-process testing, and the same quality discipline applies to the appliance parts we supply. Each heater batch is checked for continuity, insulation and dimensional fit before packing.
Integration with Appliance Control Systems
Heaters do not work alone. They are switched by defrost timers, limited by thermostats and fuses, and monitored by control boards. We supply the surrounding components so the heating circuit can be specified as a set rather than as isolated parts.
- Thermostat for temperature cut-off and hysteresis control.
- Refrigerator Control Board for cycle logic and fault signalling.
- Capacitor for motor and compressor circuits in the same appliance.
Installation, Safety and Maintenance
Glass tube heaters are installed with the tube clear of plastic liners and drainage paths, using the specified brackets and clips. Correct lead routing prevents chafing against metal edges. We supply heaters with the termination and mounting hardware agreed for the appliance model so that fitting follows the original assembly sequence.
For maintenance, heaters are treated as replaceable elements. Service channels order against model references, and we keep the same termination and length so a replacement drops into the existing harness. Pairing the heater with a defrost thermostat and fuse protects the circuit if the timer fails.
Information We Use to Configure Your Solution
To prepare a heater configuration and quotation, we work from the appliance data rather than from a generic description. The following inputs let us match the element to the unit and confirm the surrounding parts in the same offer.
| Project Input | Why We Need It |
|---|---|
| Appliance model or drawing | Defines cavity geometry, mounting points and lead routing |
| Voltage, frequency and power | Sets the electrical working point of the element |
| Defrost or warming cycle | Matches thermal duty and cycle time |
| Termination and connector sample | Ensures plug-in compatibility with the harness |
| Quantity and delivery schedule | Plans production and shipment grouping |
| Destination market | Aligns supply standard and packaging requirements |
One-Stop Supply Across the Appliance Parts Range
Heaters sit inside a wider portfolio that we supply from a single order desk. Customers building or servicing refrigeration and air conditioning equipment can consolidate purchasing across these categories.
- Refrigerator Parts — defrost components, thermostats, motors and control boards.
- Air-Conditioner Parts — compressors, motors, sensors and control accessories.
- Refrigeration Parts — copper fittings, filter driers, valves and installation materials.
This structure reduces the number of suppliers on a project and keeps component interfaces consistent. Our annual output of 10 million metalized film capacitors supports the capacitor side of the same appliance assemblies, and our export experience covers the Middle East, Africa, South America and Southeast Asia.
Frequently Asked Questions
What heater types does Kingcool supply for home appliances?
We supply glass tube quartz heaters and glass tube defrost heaters for refrigerators, together with the thermostats, fuses and timers that control the heating circuit.
Can you match a heater to a specific refrigerator model?
Yes. We configure the element from the appliance model or drawing, confirming voltage, power, tube length, termination and mounting before quoting.
Do you supply heaters together with other appliance parts?
We do. Heaters can be combined with capacitors, defrost thermostats, defrost timers and control boards in one shipment, which simplifies procurement for assembly and after-sales programmes.
What information is needed to prepare a quotation?
Send the appliance model or drawing, electrical supply, thermal duty, termination sample, order quantity and destination market. We use these inputs to prepare the heater configuration and the surrounding parts list.
How are heaters packed and delivered?
Glass tube elements are packed to protect the envelope and leads during transport, with the packing scope agreed against the order. Delivery is planned around the confirmed quantity and schedule.
