Warm Air Heating systems 

Gas-fired warm air heating systems for industrial or commercial areas

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Warm Air Heating Installation, Repair & Maintenance

When it comes to warm air heating installations and warm air heating repairs, Flair Facilities is the leading specialist in London. Flair Facilities works on all types of HVAC systems in the commercial sector but warm air systems are among some of our most frequent undertakings. This is as they’re widely used in commercial areas due to their energy efficiency, space-saving design, excellent airflow, and versatile range of heat distribution options.

As principal practitioners in industrial and commercial heating solutions, we take pride in assisting customers and clients, regardless of the scale of the task. Flair Facilities works only with industry leading brands and equipment for warm air heating systems such as: Winter Warm, Warmflow, Spaceray, Reznor, Benson, Powrmatic, and many more.

Our team of warm air heating engineers is highly skilled in installing, repairing and maintaining all types and brands of industrial and commercial warm air systems. We offer comprehensive project management services, including design, installation, repair and customised maintenance packages for warm air heating systems in and around London. Any work carried out by Flair Facilities will always be performed to the highest standards available in the HVAC sector and is always tailored to meet our client’s individual needs and requirements.

Book your London warm air heating engineer today by calling 0207 9989 005 or hit the button below!

Suspended Warm Air Heater

What is a warm air heating system?

A warm air heating system is a type of central heating system that heats air and then distributes it throughout a building via vents or ductwork. A warm air system works by drawing in air from the outside or inside the building, heating it and then circulating the warm air back into the rooms.

Gas-fired warm air heating

The method in which the air is heated can vary depending on the type of warm air heating system being used. On this page we are mainly looking at gas-fired warm air heating, where a gas flame is used to warm the air. The heat is then transferred to a heat exchanger, which in turn heats clean air that can be distributed throughout the property. The air heated by the gas is disposed of through a flue due to the presence of hazardous fumes such as NOx, CO, and CO2.

Gas-fired warm air heating systems are most commonly found in warehouses, manufacturing plants, and storage facilities. These large open spaces are more efficiently heated using vents and ducts rather than radiators, which only cover a small area and can only effectively heat a small space. (You may recognise these ducts from movies like Die Hard, where Bruce Willis crawls through them before making his grand entrance. Please note that these ducts are not generally large enough for humans and are exclusively for warm air systems or air conditioning.)

Other popular types of warm air heating systems include air source and ground source heat pumps, which involve compressing the air to increase its temperature. For more information on this type of heating, click here!

*Optional image or document upload. Details of current boiler such as photos of boiler/plant room and boiler plate with make and model no.

Warm Air Heating System FAQs

Your questions about warm air heating answered

As warm air heating heats a property via blowing warm air through vents and ducts instead of radiators, they are ideal for heating large open spaces such as warehouses as the warm air will circulate around the property and disperse it across multiple ducts. Radiators are more suited to heating small rooms and enclosed spaces due to only heating the specific area around the radiator, which will slowly heat a room once the temperature of the entire space slowly builds up. Radiator sizing and quantities are based on the BTU output of the radiator and requirements of the room. Warm air heating systems are also well suited to premises that have a door or window that is in constant use, such as garages with a large shutter door. This is because instead of needing the temperature to slowly build in an enclosed space like a radiator, a warm air heating system will constantly blow heat throughout the entire premise at various locations.

How warm air heating works depends on if you are talking about gas-fired warm air heating or electric warm air heating units like ground source and air source pumps. Gas-fired warm air heating works by drawing in air which is then heated by a flame created from combusting natural gas. This heat is the transferred to a heat exchanger, which transfers the heat to clean air, which is then drawn through vents and dispersed by air ducts to heat a property. Air source and ground source heat pumps work slightly differently. The small amounts of heat present in the air outside and in the ground are absorbed, this heat is then transferred to a fluid which then gets condensed to increase the temperature. Once the temperature is increased the hot fluid will transfer its heat via a heat exchanger to either clean air or water, which is then used to heat a property or provide hot water.

Yes warm air heating is included in the Boiler Upgrade Scheme but only for air source and ground source heat pumps, not gas-fired warm air heating. The Boiler Upgrade Scheme is available for domestic and small non-domestic properties, as part of the scheme you can get a grant for £5000 off an air source heat pump and £6000 of a ground source heat pump. For more details on the eligibility on the Boiler Upgrade Scheme visit this government page.

Gas-fired warm air heating systems can be converted to offer air conditioning capabilities also but it will involve a redesign of the system to involve additional components. This can often be a more expensive and labour intensive process than adding an air con unit onto the ducting system of your property. It is important to note that this conversion will likely require additional components to be added to the system, such as a reversing valve, an evaporator coil and a condenser unit. It may also require modifications to the existing ductwork to ensure proper airflow and distribution of conditioned air.

Maintaining a gas-fired warm air heating system starts with scheduling routine service, ideally before the winter season begins. The HVAC engineer should inspect the burners, check the pilot light, examine the flue, and clean the furnace. Alongside this, you need to replace the furnace filter and other air filters every 30 to 90 days to keep the system running smoothly. Clogged filters can reduce airflow, cause system inefficiency, and result in unclean air. Scheduling annual inspections also ensures that the ducts carry heat appropriately. You may also need to lubricate the furnace fan bearings for the furnace to run smoothly. Regularly checking the accuracy of the thermostat by setting the temperature at different levels and observing the response of the system is also required. Lastly, keep the furnace area clean and free from combustible and flammable materials to prevent fire incidents.

The lifespan of a gas-fired warm air heating system typically ranges from 10 to 20 years. The actual lifespan of the system depends on factors such as the quality of installation, how well the unit has been maintained, and how often the system is used. Regular maintenance and service, including annual inspections, can help to extend the lifespan of the unit. If your gas-fired warm air heating system is more than ten years old and requires frequent repairs, you may want to consider replacing it with a new, more efficient unit. A new system can provide better temperature control, improved energy efficiency, and may be eligible for rebates or other incentives to help offset the cost of installation.