Heaters - Frequently Asked Questions

What heating output would I need for my room?

The specific heating requirement would depend on the actual room size, but for a guide a 2kW heater would roughly do an area of 35m² with a standard ceiling height (2.5m), this is based on a modern well insulated building. If the building is an old build and not well insulated then you may need to think about either having 2 heaters in the room or going for a more powerful heater.


What type of heat is better?

This is more personal choice rather than what is best.  A convector heater or fan heater will give you instant heat as soon as it is switched on but the heat is quickly gone once the heater is switched off.  Some people find convector and fan heaters dry the air far quicker than other heaters.  

Another form of heating is an Oil Filled heater; this sort of heating is much softer and not quite so hard as convector or fan heating. An oil filled heater will take a little bit longer to produce heat but once turned off will give you longer lasting heat as the oil inside will still be warm.


Why are the industrial heaters described as a space heater?

Space heaters are designed to heat the air rather than the person in front of it.  They work by pushing a large volume of air over a heating element, this ensures that the whole area is evenly heated rather just a “hot spot” directly in front of the heater.


Can outdoor heaters be left outside?

This is not recommended. Even the heaters that have an IP protection rating are best to be brought indoors as the rating usually means that it is protected from dust and small droplets of water rather that a heavy down pour of rain.

Wall mounted outdoor heaters are recommended to be used under an awning or canopy.


Can all heaters be used in the bathroom?

Only heaters with an IP rating can be used in bathroom areas. An IP rating classifies the degree of protection provided against the intrusion of water.

If a heater is used in a bathroom that is not designed for this use it will not be covered by warranty.


Is there a minimum height requirement that a heater has to be installed on a wall?

Most heaters instruction manuals would recommend that they are installed at least 1.8m off the floor.  It is also recommended that the heater has enough space around it for air movement and nothing near it which could cover the heater and cause it to overheat.


What is a frost guard setting?

Heaters which have a frost guard setting are generally used in rooms which may not have any other heating source. A frost guard setting will ensure that the room does not drop below 5°C and this setting can be usually be found on the thermostat.


Do heaters come with a thermostat?

Most heaters will come with a thermostat built in; this can vary from a simple thermostat to a digital thermostat. A digital thermostat will allow you to see what the current room temperature is and what you have set it to, a simple rotary thermostat would not be as accurate as the digital control.


How much does it cost to run a heater?

On average the cost to run a 2kW heater would be 20p an hour; this is based on a unit of electricity costing 10p. Also most heaters do have the option to be used on lower heat setting (using less power consumption) and also if used with a thermostat the heater will only be on when needed.


I want something that will provide me with instant heat, what would you recommend?

A convector heater or a fan heater would provide instant heat as soon as they are switched on. But this heat can quickly dissipate when the heater is switched off. If wanting something with longer lasting heater the best heater to go for would be an oil filled heater.


I want to have a spot heater in my workshop/factory, which one would be best?

If this is for use in a domestic application such as garage, workshop or shed then you would need a heater which has a single phase (230V) power supply such as the 3kW big red rad or industrial fan heaters. If the spot heater is more for use in a factory or warehouse and you have a 3-phase power supply (410V) then could use the larger space heater to heat the whole area or again use the 3kW big red rad.


Can heaters also provide cooling?

There are some heaters which would provide cooling as well as heating for all year use. These heaters will allow you to switch the heating element off and to use the heater as just a fan.


Do heaters have any safety features?

Yes, heaters will usually have a couple of safety switch off features. These would be if the heater falls over then it will switch off and also if the heater gets covered and starts to overheat then again the heater will switch off.

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