
Gas Warm Air Heating Explained
A commercial gas fired warm air heating system is the perfect solution for heating large, open-plan spaces such as factories, warehouses, and sports halls.
Gas warm air heating systems are faster and more effective at heating larger spaces than any comparable solution. As a result, you’ll need to use less energy to achieve the temperature you’re looking for.
As a result of their excellent energy efficiencies and fully modulating capabilities, gas warm air heating systems consume less fuel. That means you’ll save on your energy costs, while still enjoying a comfortable and consistent temperature throughout your space.
Gas warm air heating systems can be customised to suit any situation. No matter how large your space or how complex your heating needs, a gas warm air heating system can deliver a powerful and effective solution.
When installed effectively, gas warm air heating systems are extremely quiet. This is particularly important in busy spaces where it’s essential that people can hear each other easily for safety reasons.

Why Choose OKEL for Warm Air Heating Systems?

At OKEL, we use a variety of heating appliances for our commercial warm air heating solutions – it all depends on the specific needs of your business.
We focus on providing energy-efficient, environmentally friendly solutions. As a result, all the heaters we use are ErP-compliant, in accordance with the latest Eco Design Directive. They incorporate modulating premix burners and fans to reduce energy consumption and are self-modulating.
This allows the heaters to quickly bring up the temperature in the building by operating at maximum load, before reducing their output by approximately 60% to maintain the optimal temperature. This approach significantly reduces fuel consumption, helping to limit your environmental impact while also reducing energy costs.
With OKEL, you benefit from:
Accredited gas safe engineers.
Tailored system designs.
Energy-efficient systems.
20+ years industry experience.
Green funding payment options.

Our Gas Warm Air System Installation Process
On-Site Consultation
One of our expert engineers will visit your site to perform a free survey and discuss your unique requirements to find the right gas warm air heating solution for you. They will be your point of contact throughout the installation process.
Solutions and Quotations
Based on our survey and your property’s needs, we’ll provide a custom design for an energy-efficient, cost-effective heating system. Your project manager will then review the proposal and forecast how much it is likely to cost to be installed.
Pre-Installation Planning
Before installation begins, we perform detailed risk assessments and schedule the installation to minimise disruption as much as possible. We take the safety of our engineers and clients very seriously, which is reflected in our planning process, especially when it comes to gas heating systems.
All our engineers are Gas Safe certified.
Installation
Our team of fully accredited and highly experienced engineers deliver a safe, reliable and streamlined installation for your gas warm air system. The size of the building and complexity of the system will affect the time it takes to complete the installation.
Handover and Sign-Off
Once the new gas warm air heating system is installed, we provide training on your new system and ensure everything is working to your satisfaction.
Ongoing Aftercare
We offer full warranty protection as well as an annual maintenance service to keep your heating system in top condition.
Frequently Asked Questions
- What is a Commercial Gas Warm Air Heating System?
A commercial gas warm air heating system is an efficient, cost-effective, and eco-friendly way of heating larger spaces, such as factories, warehouses and sports halls. It uses natural gas or liquid petroleum gas (LPG) to directly heat the air through a combustion process. This air is then spread throughout the space using fans built directly into the heating units.
- Who Uses a Commercial Gas Warm Air Heating System?
Commercial gas warm air heating systems are a popular choice for businesses that need to achieve consistent temperatures in large, open-plan spaces. For factories and warehouses, for example, this heating system can prove significantly more cost-effective and energy-efficient than alternative solutions based on convection heating methods.
- Why Do I Need to Install a Commercial Gas Warm Air Heating System?
A commercial gas warm air heating system offers innumerable advantages for businesses with larger and more open premises. By allowing you to heat your space faster and more consistently, you can ensure your employees are comfortable all year round without the need for excessive energy costs. For factories and warehouses, it can also help to ensure your equipment operates at maximum efficiency.
- Who Can Install a Commercial Gas Warm Air Heating System?
Installing commercial gas warm air heating systems is a specialist task, and you will want to ensure that your engineer is suitably qualified and accredited. A domestic heating engineer will not have the insurance and gas safety accreditations that are needed to fully install and commission more complex commercial and industrial installations.
Further, you’ll also want to ensure that whoever installs your commercial gas warm air heating system can adapt the process to your specific needs. To achieve the best possible outcome, you’ll want a fully bespoke service that begins with a detailed survey of your site.
- How Much Does a Commercial Gas Warm Air Heating System Cost?
The specific cost for a commercial gas warm air heating system can vary significantly depending on a range of factors, including the size of your space to be heated and positioning of the incoming gas supply. You’ll want to seek a custom quote based on a full-site analysis to get an accurate sense of the cost involved.
- How Long Does a Commercial Gas Warm Air Heating System Installation Take?
How long it takes to install a commercial gas warm air system depends on the size of your premises and the complexity of your specific needs. It will also depend on whether your property will be in active use during the installation. At OKEL, we are careful to ensure there is minimal disruption to your operations during the installation process, but this can have an impact on how long the installation takes.
- How Long Does a Commercial Gas Warm Air Heating System Last?
A well-designed and properly installed commercial gas warm air system should provide benefits to your business for the long-term. At OKEL, we use high-quality components throughout our commercial gas warm air systems, and all the appliances we use come with lengthy warranties from the manufacturers.







