Trusted HVAC Experts SINCE 2014
Direct Space Heaters
Direct oil fired space heaters provide fast and cost effective heat to large, well ventilated spaces and outdoor areas. A direct space heater is great for construction sites, warehouses, or other well-ventilated spaces.
Sealey
Sealey AB350 Kerosene/Diesel Space Heater - 230v 10kW
- 35,000 BTU/hr Portable Direct Heat
- Runs on Kerosene or Diesel
- 450m3/h Airflow
- Enhanced Safety Features
- Ideal for Workshops & Home DIY Projects
- Dual LED Thermostat Control Display
SIP Industrial
SIP Fireball XD175 Diesel/Paraffin Space Heater 51kW
- 175,000 BTU/hr Powerful Portable Direct Heat
- Runs on Diesel, Paraffin or Kerosene
- Quality Air Pump for Efficient Fuel Transfer
- Heavy-Duty Full-Frame & Components
- Ideal for Large Industrial Areas up to 1230m3
- LED Thermostat Display & Remote Sensor
Thermobile
Thermobile TA40 Direct Oil Fired Space Heater - 240v/110v 46kW
- 157,000 BTU/hr Portable Direct Heat
- 80 Litre Tank Runs on Diesel or Kerosene
- 1200m³/h Airflow
- Fixed Outlet Temperature
- Perfect For Construction, Agriculture & More
- Efficient Operation & Easy Controls
SIP Industrial
SIP Fireball 80XD PLUS Diesel Space Heater - 230v 20kW
- 70,000 BTU/hr Portable Direct Heat
- Runs on Diesel, Paraffin & Kerosene
- 500m3 Heating Area
- ErP Compliant Stainless-Steel Construction
- Safety Overheat Protection
- Integrated Thermostat Control
SIP Industrial
SIP Fireball XD75/XD75F Diesel/Paraffin Space Heater - 230v 22kW
- 75,000 BTU/hr Portable Direct Heat
- Runs on Diesel, Paraffin & Kerosene
- 530m3 Heating Area
- Robust & Resilient Components
- Internal Overheat Safety Feature
- LED Thermostat Control Display
Hyundai Power Products
Hyundai HY125DKH Direct Oil Fired Space Heater - 230v 37kW
- 125,000 BTU/hr Portable Direct Heat
- 38L Fuel Tank Runs on Diesel or Kerosene
- 900m³ Heating Area
- Instant & Even Heat Spread
- Low Fuel Consumption
- Built-in Thermostat Control
SIP Industrial
SIP Fireball 135XD PLUS Diesel Space Heater - 230v 37kW
- 126,000 BTU/hr Powerful Portable Direct Heat
- Runs on Diesel, Paraffin or Kerosene
- 900m3 Heating Area
- Fully ErP Compliant
- Stainless-Steel Premium Components
- Dual LED Thermostat Control Display
SIP Industrial
SIP Fireball XD140 Diesel/Paraffin Space Heater - 230v 41kW
- 140,000 BTU/hr Powerful Portable Direct Heat
- Runs on Diesel, Paraffin or Kerosene
- 1050m3 Large Heating Area
- Heavy-Duty Air Pump
- Powder-Coated Stainless-Steel Components
- LED Thermostat Control Display
Hyundai Power Products
Hyundai HY215DKH Direct Oil Fired Space Heater - 230v 63kW
- 215,000 BTU/hr Portable Direct Heat
- 50L Fuel Tank Runs on Diesel or Kerosene
- 1500m³ Heating Area
- Instant & Even Heat Spread
- Low Fuel Consumption
- Built-in Thermostat Control
Arcotherm
Arcotherm GE65 Direct Oil Fired Heater - Dual Voltage 69kW
- 235,000 BTU/hr Portable Direct Heat
- 65 Litre Fuel Tank
- 2500m³/h Air Flow
- Automatic Ignition for Quick Start
- Ideal for Warehouses, Construction & Agriculture
- Overheat Thermostat & Post-Ventilation Cooling
SIP Industrial
SIP Fireball XD350 Gear Pump Diesel/Paraffin Space Heater 105kW
- 350,000 BTU/hr Powerful Portable Direct Heat
- Runs on Diesel, Paraffin or Kerosene
- Sturdy Steel Frame & Pneumatic Tyres
- Ideal for Large Industrial Areas up to 2460m3
- Durable Danfloss Gear Pump
- Dual LED Thermostat Display
Master Climate Solutions
Master B360 Direct Oil Fired Space Heater - 240v 111kW
- 378,954 BTU/hr Powerful Portable Direct Heat
- 105 Litre Tank Runs on Diesel or Kerosene
- 3300m³/hr Airflow
- High-Quality Components & Simple Controls
- Designed for Well-Ventilated Areas
- Fast. Efficient. Cost-Effective.
SIP Industrial
SIP Fireball 1822 Infrared Diesel Heater - 230v 30kW
- 102,420 BTU/hr Portable Infrared Heat
- Runs on Diesel or Paraffin
- Fully ERP-Compliant & Timed Cooling
- Durable Powder-Coated Finish
- User-Friendly Controls
- Adjustable Infrared Heater Head
Direct Oil Fired Space Heaters For Fast and Efficient Heat
Direct fired space heaters provide a cost effective way of heating outdoor and well ventilated spaces. Mostly used in industrial settings, these heaters work by passing air through an open flame which quickly warms the area. Direct fired diesel space heaters are capable of handling large amounts of air 100% efficiently, however due to the burning of fuel, they produce fumes and moisture. As a result, a direct oil fired heater can never be used in enclosed, poorly ventilated spaces.
These heaters are best used in large spaces with great ventilation. They are often used in warehouses, factories, garages, construction sites, hangars and material yards providing there is enough ventilation. Direct space heaters are designed to be compact, lightweight and portable so they can be easily moved to provide heat across various sites and locations. Additionally, direct oil fired heaters can operate year-round and work effectively in winter months.
If you need to heat a poorly ventilated space quickly, indirect fired space heaters operate in the same way as indirect fired space heaters, but are set up outside the facility and have clean, warm air ducted inside to remove any risk. Read more about the differences between direct and indirect fired space heaters.
Trusted Direct Fired Heaters
At National Heater Shops, we offer a range of direct diesel fired space heaters in a variety of sizes, from 10kW to over 100kW. We have options from top brands such as Arcotherm, Sealey, Sip and Thermobile amongst others. Trusted by industry experts, these heaters are reliable, robust and portable - providing comfort to many different locations.
Direct Oil Fired Space Heater FAQs
Can I use a direct oil fired space heater inside?
It depends. An area needs to be large and very well ventilated for a direct oil fired space heater to be safe and effective. There are many alternatives to direct oil fired space heaters for inside spaces, however. Check out some of these alternatives in our selections of electric fan heaters, cabinet heaters or waste oil heaters.
What fuel does a direct oil fired heater use?
Many of the models we provide are diesel/paraffin fueled. We also have options available for kerosene, such as the Master B180 Direct Oil Fired Space Heater.