Electric heater — type Air Handling Unit. The complete factory specification follows. Made by Hunan Dinghan Environmental Protection Technology Co., Ltd. (3 years on the platform, typical reply ≤2h). Quantity and destination market determine the final price — tell us both for a firm quote.
Key Features of This Electric Heater
- Warranty: 1 Year
- Place Of Origin: Hunan, China
- Application: Hospital, Hotel, Home, School, Plant, Warehouse, Office, Apartment, Mall
- Type: Air Handling Unit
- Mounting Type: Floor Standing
- Fan Motors Type: AC
Technical Specifications
| Type | Air Handling Unit |
|---|---|
| Mounting Type | Floor Standing |
| Fan Motors Type | AC |
| Motor Type | AC Motor |
| Filter Type | High-Efficiency Particulate Air Filter, Regular Filter, G4 Filter, F7-F9 Filter, HEPA Filter |
| Application | Hospital, Hotel, Home, School, Plant, Warehouse, Office, Apartment, Mall |
| Key Selling Points | Low Maintenance Cost, Easy To Operate, High Heat Recovery Efficiency, ensible & Latent Heat Recovery, Factory Direct / Manufacturer |
| Warranty | 1 Year |
| Core Components | Motor, energy recovery wheel |
| Place Of Origin | Hunan, China |
| Weight (Kg) | 160 |
| Brand Name | DINGHAN |
| Heat Recovery Type | Rotary Sensible Heat / Enthalpy (Latent) Recovery |
| Filtration Configuration | Primary (G4) / Medium (F7-F9) / HEPA Optional |
| Auxiliary Heating | Electric Heater Integrated (Customizable Power) |
| Factory Capability | Source Factory (Est. 2014), OEM/ODM Supported |
| Selling Units | Single item |
| Single Package Size | 150X90X80 cm |
| Single Gross Weight | 200.0 kg |
Product Details




Rotary wheel core recovers sensible heat to reduce energy loss and improve overall system efficiency.
Built-in electric heater ensures stable and comfortable supply air even in low-temperature environments.
3. Stable Airflow & Low Noise
Optimized fan and air channel design delivers stable airflow with low operating noise.
4. Replaceable Filter Structure
Multi-stage filters with easy access design ensure clean air and simple maintenance.
5. Modular Section Design
Modular structure allows flexible configuration, easy transport, and convenient on-site installation.
6. Flexible Project Customization
Customizable air volume, functions, and configurations to fit various commercial and industrial needs.
Model | DFA-150LZ | DFA-250LZ | DFA-400LZ | DFA-600LZ | DFA-800LZ | ||||
Rated Air Flow (m³/h) | 1500 | 2500 | 4000 | 6000 | 8000 | ||||
Rated Voltage | 380V~50Hz | 380V~50Hz | 380V~50Hz | 380V~50Hz | 380V~50Hz | ||||
Fan Power (KW) | 0.55*2 | 0.9*2 | 1.6*2 | 2.2*2 | 3.0*2 | ||||
Electric Heater Power (KW) | 2 | 3 | 4 | 6 | 8 | ||||
Total Input Power (KW) | 3.1 | 4.8 | 7.2 | 10.4 | 14 | ||||
External Static Prressure (Pa) | 250 | 300 | 350 | 400 | 450 | ||||
Noise dB(A) | 57 | 58 | 60 | 62 | 65 | ||||
Net Weight (kg) | 160 | 200 | 245 | 300 | 360 | ||||
Product Size (mm) | 1350×800×700 | 1500×900×800 | 1670×960×840 | 2000×1000×900 | 2200×1200×1000 | ||||
Filter Section | Fresh Air G4 + Exhaust Air G4 Medium (F7-F9)/HEPA Optional | ||||||||


* External Static Pressure : Adjustable ESP to suit duct system resistance and installation needs.
* Control Mode : Support local control, remote control, and BMS (Building Management System) integration.
* Casing Size : Flexible casing dimensions for space constraints and tight installation requirements.
* Access Door Layout : Custom door quantity and position for easy maintenance access.
Wide Range of Application Scenarios (Reliable ventilation solutions for various environments )
Contact Us for Model Selection
Tell us your project requirements — DINGHAN will support model selection and customized configuration.


A: We are manufacturer with professional designers and engineers. Our factory is located in Zhuzhou, Hunan, China
2Q: I can’t find the product on your catalogue, can you make this product for me?
A: Our catalogue shows most of our products, but not all. So just let us know what product do you need, and how many do you want.
If we do not have it, we can also design and make a new mould to produce it. For your reference, making an ordinary mould willtake about 35-45 days.
3Q:Can you make customized products and customized packing?
A: Yes. We made a lot of customized products for our customer before. About customized packing, we can put your Logo or other info on the packing if you can meet our MOQ.
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4Q: How could I get a sample?
A:We do not provide free sample, if you are interested in our products please contact our customerservice, she can tell you thedetails of the sample.
5Q: How to guarantee the quality of your products?
A: 1) Strict detection during production.
2) Strict sampling inspection on products before shipment and intact product packaging ensured.
6Q:I need your price list of all your products, do you have a price list ?
A: Please send us your message and submit, then we will send your interested products' price list as soon as possible.
7Q:Do you have a guarantee of your product quality?Can we extend?
A: We have a guarantee of One years.Warranty can be extended with extra charge.
8Q:Can you provide drawing design service?
A: Yes, we have a professional ventilation system engineering team to design and optimize the solution for your project.
9Q:Do you have technical support?
A: We have professional technical team to answer technical question.
10Q:Can you provide installation accessories along withequipment?
A: Yes, of course. This is one of our standard services, we can calculate and quote you needed VRF installation kit
11Q:What is your delivery time?
A: For the standard unit, about 35-40days
Ordering and Pricing
- Minimum order quantity: 2 set
- Volume pricing:
- 2+ set: US $1199 / set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this electric heater?
The standard minimum order quantity is 2 set. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Hunan Dinghan Environmental Protection Technology Co., Ltd., based in China. The company 3 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Hunan Dinghan Environmental Protection Technology Co., Ltd. range on HVACR Nexus.
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