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You are here:- home > heating index > radiant heaters > Mobile infra-red heater
mobile infra-red heater
click to enlarge

Mobile infra-red heater

The BTQ3 mobile infra-red heater is lightweight and easy to manoeuvre with built-in wheels and a large carrying handle.

Two models are available to suit 230v or 110v applications:

  • BTQ3 - for 220V to 240V operation, supplied with a standard 13A UK plug BS 1363/A
    A blue 16A 3 pin BS EN60309 plug can be fitted if required.
  • BTQ3-LV - for 110V use, supplied with a yellow 110v 32A 3 pin BS EN60309


Twin 1400w short wave infra-red tubes provide instant heat at the flick of a switch, wherever it is required:

  • Order preparation areas
  • Goods in and loading bays
  • Workshops and factory units
  • Trade counters and shops
  • Offices and reception areas

Key features

  • Perfect for cold or drafty environments – as it only heats objects and people not the surrounding air.
  • Powerful 2800w output –two individually switchable 1400w infra-red bulbs.
  • Safe – broad stable base, and automatic cut out if the heater falls on to its face.(230v model only)
  • Manoeuvrable –lightweight, built in handle and wheels.
  • Silent operation – no air flow or moving parts.
  • Tough – impact resistant casing with steel heater cassette and grill.
BTQ3 mobile infra-red heater


Model   BTQ3 BTQ3-LV
Output hi/lo W 2800 / 1400 2800 / 1400
Voltage V 220 - 240 110
Maximum phase current A 12.2 25
Power cable length m 3 3
Power cable type   Black 3G 1.5mm H07RN-F Yellow 3G 4.0mm H07VV-F
Power connection   Standard 13A UK plug
(optional BS EN60309 16A 3 pin)
32A 110v 3 pin plug
(BS EN60309)
IP Rating   20 20
Operating temperature C -20 to +40 -20 to +40
Weight kg 14.3 14.3
Width mm 500 500
Height mm 1000 1000
Depth mm 470 470
Colour   Black / Orange Black / Orange
IR bulb type   LHW348-230-1400R7S/H LHW348-110-1400R7S/H
Price ex. delivery & VAT   £199.00 £199.00
Price inc. delivery & VAT   quote for 230v portable heater quote for 110v portable heater

BTQ3 mobile infra-red heater - approval

The BTQ3 mobile infra-red heater is CE marked.

Replacement IR Bulbs

Like an ordinary light bulb, the IR bulbs in infrared heaters will eventually fail through age. Or shatter if the heater is knocked over, or water is splashed on them while hot. Replacement bulbs can be purchased from us by clicking on the link below.

Replacement IR bulbs
230v Replacement IR bulb
for BTQ3
LHW348-230-1400R7S/H quote
110v Replacement IR bulb
for BTQ3-LV
LHW348-110-1400R7S/H quote

Note: These bulbs are specifically for our BTQ3. We do not know if they will fit other infrared heaters. Customers looking for bulbs for other heaters should contact their original supplier.

Electricity supply requirements for BTQ3 mobile radiant heater

The BTQ3 is designed for connection to a 230V 50Hz electricity supply. It is suitable for use in the UK, Europe and most of the Middle East. However, if you intend to use it outside of the UK, please confirm with sales your electricity supply will be suitable before ordering.

The BTQ3 is supplied with a 3m power cable fitted with a standard 13A UK plug (BS1363). The plug can be replaced with a BS EN60309 16A 3 pin industrial plug if required.

The BTQ3-LV is designed for 110v operation in premises where the use of portable 230v equipment is prohibited. It is fitted with a yellow 32A 3 pin BS EN60309 plug.

Please note the BTQ3-LV requires a 32A transformer or socket, it will not work with the smaller, more common 16A outlets. If you require a 32A transformer, please click for a quote on the 3000VA transformer below:

Accessories for BTQ3-LV 110v heater
3000VA continuous rated
vented heater transformer
230V input - 110V out via
1 x 32A and 1 x 16A outlet.
14m extension lead 110V extension lead, 32A plug to 32A socket. quote

1 year guarantee

Activair BTQ3 mobile infrared radiant heaters are manufactured to the highest standards, and we are confident that they are completely reliable. However, in the unlikely event a fault may occur, they have a 1 year return to base parts and labour guarantee.

Please note, the guarantee excludes the glass IR bulbs, as these are consumable items, which will fail during normal use.

the heater working

The BTQ3 is a fully mobile infra-red radiant heater that instantly produces heat at the flick of a switch.

It is ideal for use in the coldest and draughtiest environments because it only heats objects and people, not the surrounding air.

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