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A detailed buying guide: how to choose an electric space heater or heat blower.
This section covers mains-powered electric heating equipment for construction sites, warehouses, workshops, garages, greenhouses and utility rooms: 220 V and 380 V electric heat blowers, fan heaters with ceramic or tubular steel heating elements, as well as electric infrared heaters. For an overview, read what electrical equipment is and how it is classified.
Heat blowers and fan heaters use a fan to warm the air quickly, while an infrared heater warms objects and people and suits spot heating or open spaces. A ceramic (PTC) element heats up fast and dries the air less, while a tubular steel element is durable and suits high-output blowers. Learn more: electric heater types and heating elements.
The required output depends on the room volume, the difference between indoor and outdoor temperatures and the insulation: a well-insulated room needs roughly 1 kW per 10 m², while poorly insulated spaces need considerably more. On sizing: how to calculate the required heater output.
Airflow (m³/h) shows how quickly the heater spreads warm air through the room: a high airflow heats the whole space faster, and a separate fan-only mode lets you ventilate or dry the room without heating. See what is performance or output.
Heaters up to about 3 kW run from a standard 220 V socket, while blowers of 5 kW and above usually require a three-phase 380 V supply. Make sure the wiring and circuit breaker can handle the heater current. On voltage: volt (V); on current: what is electric current (A).
High-output heaters draw a large current for long periods, so the socket, plug and extension cord must be rated for that current, and the extension cord must be fully unwound. Read how to use an extension cord safely; on choosing sockets and plugs: how to choose sockets, plugs, extension leads and power strips.
A thermostat keeps the set temperature and saves electricity, while several power stages let you choose the heating intensity. Overheat protection and automatic tip-over shut-off are important. See what is motor thermal protection.
A metal housing, a sturdy handle and a stand suit construction sites and warehouses, while compact models are easy to carry. In damp spaces the protection rating matters — see what is an IP rating — and after the season, clean the heater and store it in a dry place: how to store power tools correctly.
The fans of heat blowers can be noticeably loud, which matters if people work in the space for long periods, while infrared heaters run almost silently. See what is noise level in db.
Place the heater on a stable surface, never cover the air inlet or outlet, never dry clothes or materials on it, and never leave a running heater unattended. Read how to use electric heaters safely and essential power tool safety rules.
Keep the heater at a safe distance from flammable materials, paints and solvents, and keep a fire extinguisher where a high-output heater runs for long periods. Read essential fire safety rules; on extinguishers and other equipment: how to choose fire safety equipment.
At ToolsArmenia you can compare electric space heaters and heat blowers by type, heat output, airflow, power supply and protection features and choose the right model for your construction site, workshop, warehouse or garage.
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