Petroleum facilities
Room-air heating at petroleum facilities where the heater matches the classified area.
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Explosion-Proof Convection Heater
Hazardous-area indoor space heating
The Explosion-Proof Convection Heater provides indoor space heating for suitable hazardous areas in petroleum, chemical and pharmaceutical facilities. Cooler air enters at the bottom, warms within the heater and rises through the upper outlet, establishing natural air circulation without an open flame.
Manufactured by XGTHERMAL in China, this hazardous-area electric space heater has a published power range of 1.5–3 kW and microcontroller-based operation. Heater selection considers room heat loss, ventilation and the site’s hazardous-area classification, with an optional over-temperature alarm available for the selected configuration.
Natural Air Convection
Lower air inlet and upper warm-air outlet support room circulation
1.5–3 kW Heating Range
Electric space heating for project-selected industrial rooms
Microcontroller Operation
Optional over-temperature alarm for the selected configuration
Typical applications
Indoor heating for suitable hazardous industrial areas.
This product heats the surrounding room air rather than a process stream. The following applications require a match between the installation’s gas group, temperature class and ambient conditions and the selected heater’s documentation.
Chemical facilities
Indoor heating applications assessed against the chemicals present and their ignition characteristics.
Pharmaceutical facilities
Suitable industrial rooms with hazardous-area requirements, subject to the final site assessment.
Cold-weather room heating
Supports the specified indoor temperature when capacity is matched to heat loss and ventilation.
Existing space-heating upgrades
An electric convection option where the existing location, supply and safety requirements are suitable.
Heating challenges
Match room heat loss with a clear convection path.
Natural circulation needs a clear air path, while the installed heating capacity must cover the room’s heat loss. Ventilation, open doors and poor insulation can increase the demand. Heater position and clearances are therefore considered alongside room size and temperature requirements.
Walls, windows, ventilation and door opening affect the heating demand.
Heater rating and position are reviewed with room conditions and the required air clearances.
Obstructed openings can impair heat distribution; inadequate capacity may leave the room below target temperature.
- Include ventilation and infiltration in the room heat-loss assessment.
- Keep lower air inlets and upper outlets unobstructed; do not cover the heater.
- Provide the installation clearances and service access specified for the selected unit.
Engineering design
Cool air enters below. Warm air rises above.
The lower inlet admits cooler room air to the heating section. As the air warms, it rises and leaves through the upper outlet, drawing more air into the heater. This natural-convection arrangement promotes circulation within the room without using a fan to drive the heating airflow.
- Lower inlet arranged to admit cooler room air
- Upper outlet arranged to release warm air into the room
- Natural-convection heating airflow without a circulation fan
- Installation location selected for unobstructed airflow and maintenance access
Operation and protection
Controlled operation for the selected hazardous area.
The published configuration uses a microcontroller, with an optional over-temperature alarm. Operating settings, alarm actions and any additional shutdown requirements are confirmed for the supplied model. The heater’s electrical protection and temperature limits must remain compatible with the hazardous-area installation.
Microcontroller-based operation
A microcontroller is listed in the standard product configuration. Available settings and operating functions are confirmed in the supplied model’s instructions.
Optional over-temperature alarm
Over-temperature alarm capability is optional. Alarm thresholds, outputs and any automatic shutdown action must be agreed for the selected configuration.
Electrical installation protection
Supply protection, grounding, cable entries and terminations are selected in accordance with the unit’s instructions and the site requirements.
Ex marking and air-path inspection
Confirm Ex db IIB T3 Gb suitability and permitted ambient conditions before installation. Inspect air openings, electrical connections and heater condition as required; operation without an open flame does not remove hazardous-area obligations.
Engineering data
Specifications
These are the published product-range parameters. Final voltage, power, alarm configuration and installation limits are confirmed for the selected model.
| Specification Parameters | Specification Details |
|---|---|
| Rated Voltage | AC 220–380 V, 50 Hz (customizable) |
| Rated Power | 1.5–3 kW |
| Control Mode | Microcontroller |
| Alarm Mode | Over-temperature alarm (optional) |
| Protection Class | IP65 |
| Explosion-Proof Grade | Ex db IIB T3 Gb |
| Standards and Certification Area | Reference / Route | How XGTHERMAL Supports It |
|---|---|---|
| Explosion-proof design basis | GB/T 3836 / IEC 60079 | Applicable requirements for the heater’s electrical construction, flameproof protection and hazardous-area marking. |
| Product specification | Q/SXGDL03-2022, BDRT series | Published reference for the convection-type explosion-proof electric heater family; request the selected model’s documentation. |
| Destination-market Ex assessment | ATEX / IECEx / EAC | Certification routes can be reviewed for the final model and destination. These routes are not existing blanket certificates for every configuration. |
| Ingress protection | IEC 60529 / IP65 | Confirm the rated enclosure protection and installation limits in the model documentation. IP65 alone does not establish outdoor or washdown suitability for the complete installation. |
| Inspection and handover | Model-specific records and instructions | Agree applicable inspection records, Ex documents, alarm configuration and installation instructions before supply. |
Certification availability depends on final equipment configuration, destination market requirements, hazardous-area classification and third-party conformity assessment. Standards listed here describe available engineering and documentation support, not a blanket certificate for every configuration.
| Name | Origin/Brand | Remarks |
|---|---|---|
| Heater Housing | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Housing and air-path arrangement for the selected model |
| Heating Assembly | Shenyang Xinguang Electric Manufacturing Co., Ltd. | Electric heating assembly within the published 1.5–3 kW range |
| Electrical Components | Delixi, Chint or project-approved equivalents | Control and electrical components; optional alarm configuration agreed with the order |
Operator references
One of China’s Top-Tier Electric Heating Suppliers for Oil & Gas Projects
XGTHERMAL has supplied electric heating systems for projects connected with CNPC / PetroChina, PipeChina and Sinopec. In China’s petroleum and petrochemical sectors, qualified heater suppliers must pass technical review, explosion-proof compliance checks, safety documentation review and field performance verification.
This project record places XGTHERMAL among the specialist electric heating manufacturers trusted for demanding oil and gas applications. Redacted cooperation records, contract references or project supporting materials can be provided for qualified procurement discussions.
Custom engineering
Custom engineering around your operating conditions.
Share the room layout, required indoor temperature, ambient conditions and hazardous-area requirements. XGTHERMAL can review the heating capacity, installation position, electrical supply and documentation needed for the project.
- Heating duty Room heat loss, target indoor temperature and operating schedule.
- Mechanical interface Room layout, installation position, airflow clearance and service access.
- Site safety Hazardous-area classification, IP protection, grounding and interlock requirements.
- Electrical interface Supply voltage, cable route and any additional monitoring requirements.
