Northern Polytunnels

Sales & Enquiries
01282 873120
Sales & Enquiries
01282 873120

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Indirect Fired Heaters

Contact our sales team on 01282 873120 or sales@npstructures.co.uk for more information and prices.

Product Description

Designed and developed with outstanding, unique features.  The heavy-duty, IP55 rated air circulation fan is mounted on the under-side, taking in the coldest air whilst preventing the fan blades from collecting dust, as happens with side and top mounted fans.  Fan is selectable, allowing for either continuous operation or to run only when the heater is firing.

The externally mounted burner is supplied to burn either oil (kerosene or paraffin) or gas (natural or LPG), and are interchangeable, allowing you to switch to the lowest cost fuel (providing you have both an oil and a gas burner).  The burner has a self-diagnostic control for ease of service/set-up, and the complete burner can be easily removed and sent away for servicing without the need for an engineer to visit your site.  This ‘quick-release’ feature means any new type of burner can be easily fitted at a later stage making this heater future proof.

The control panel is mounted in an IP65 rated enclosure, and comes with a digital temperature control with remote sensor.  Alternatively, control relays can be fitted for computer control.

Requires single phase 230v AC power supply (3-phase can be supplied)

Available in three sizes – 75Kw, 100Kw or 120Kw

Full nationwide installation service offered.


In-Direct Fired Models


The main body of the heater is galvanised, for long life, and has removable covers allowing quick, easy maintenance and access to the combustion chamber to allow for periodically changing the stainless-steel sacrificial heat shield. 


The flame is totally enclosed within the combustion chamber, with the all the bi-products of combustion (waste gases) being completely exhausted from the building via the stainless steel flue (ordered separately).  This ensures the highest levels of air quality.  The air intake for the combustion process can be ducted from outside the building to ensure clean, efficient combustion, however this only applies in dusty situations such as commercial poultry houses.


85-92% efficiency (depending upon fuel type)


For the natural gas models we specify 1/2” gas hose for the 75Kw and 100Kw heaters, and 3/4” for the 120Kw unit. 


Extras: Flue kit (varies for each heater), sling kit for suspending the heater, floor stand on which to sit the heater, gas hose etc.


For oil-fired heaters we can supply oil storage tanks and all the required fittings.

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Tel: 01282 873120 • Fax: 01282 871733 • Email: info@npstructures.co.uk
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Mill Green, Waterside Road, Colne, Lancs, BB8 0TA