Negative-Pressure Exhaust Fans
Large wall fans that pull air out of the house to keep the air fresh and temperature under control.

Climate Control · G07
Controllers that read temperature and humidity and run fans, inlets and heaters.
Sizes and configuration are customised to the project; details are agreed with you before quotation.
An environment controller reads sensors in the house and adjusts fans, inlets, cooling pads and heaters to follow a set temperature curve for the pig age. It keeps conditions steady day and night, and can sound an alarm if the temperature goes out of range.
Target temperature changes with pig age.
One controller for the whole room.
Alerts when conditions are out of range.
Typical reference values. Final dimensions, materials and configuration are customised to your project and confirmed with you before quotation.
| Characteristic | Description |
|---|---|
| Inputs | Temperature and humidity sensors |
| Outputs | Fans, inlets, pads, heaters |
| Fan control | On-off or variable speed |
| Display | Screen with settings and history |
| Options | Remote monitoring, data logging |
| Customisation | Yes. Sizes, materials and configuration are adapted to the project. |
| Installation | Supported by HNYZ installation teams; scope agreed per project. |
| Packing and transport | Packed for sea or road shipping; method agreed per order. |
| Warranty | Agreed per project. |
| Certificates | Please ask for the documents required in your market. |
Why HNYZ Group
Usually one or more per room. We specify from the layout.
With remote monitoring options, yes.
From the house volume, pig number and peak outside temperature. We calculate the airflow and propose the fan count.
In hot climates, pads cool incoming air by evaporation and are common. In cold climates, heating matters more.
Yes. Controllers can sound an alarm when temperature goes out of range, and monitoring can be added.
Houses need a plan for power cuts: alarms, a generator, or emergency openings. We discuss options with you.
Fan power is a major part of running cost. Variable-speed fans and good design can lower it.
No. Dimensions, materials and configuration are customised to your herd size, climate and local rules, and agreed with you before quotation.
They are typical reference values to help you compare. Final specifications are confirmed with you before quotation.
Our installation teams install and commission the equipment. The scope for each project is agreed in the contract.
Warranty terms depend on the equipment and are agreed per project in the contract.
Enquiry
Send us your herd size, site and timeline. We reply with a recommended configuration and a quotation.
What happens next
You send your project details
Herd size, site, land and target start date. Rough numbers are enough.
We reply with a layout and an equipment list
Our team reviews your requirements and proposes a configuration.
We agree the details with you
Sizes, materials and scope are confirmed before any quotation.
Large wall fans that pull air out of the house to keep the air fresh and temperature under control.
Wheeled coolers that add local cooling where it is needed.