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.
Winterwarm
Winterwarm DXB 120 Direct Oil Fired Agriculture Heater 230v 120kW
- 409,680 BTU/hr Direct Heat Output
- Runs on Diesel or Paraffin
- 7000m³/h Airflow
- Ceiling-Suspended Design
- Fan-Only Mode
- IP54 Rating Ideal for Agricultural Areas
Arcotherm
Arcotherm GE/S Direct Space Heaters 69kW - 111kW
- 69kW - 111kW Direct Diesel Heat
- 4,600m³/h Airflow
- Electronic Flame-Control & Safety Thermostat
- AISI 430 Stainless-Steel Combustion Chamber
- Bayonet-Type Fuel Tank Cap & Drain Plug
- Built-in Oil Burner Included
Thermobile
Thermobile TAS 800 E - Suspended Direct Oil Fired Space Heater - 230v 95kW
- 324,330 BTU/hr Powerful Direct Heat
- Runs on Diesel or Kerosene
- 7000m³/h Airflow
- Suspend From Ceilings
- Ideal For Agriculture, Horticulture & Livestock
- Clean Burner With Fresh Air Connection
ZM Heaters
ZM120 Automatic Multi-Fuel Waste Oil Cabinet Heater 137kW
- 137kW Variable Heat Output
- Multi-Fuel Flexibility
- Durable Heat-Resistant Stainless Steel
- Advanced Safety Mechanisms
- Double Intake Fans Ensure Consistent Efficient Heating
- One-touch Automatic Ignition
ZM Heaters
ZM80 Automatic Multi-Fuel Waste Oil Cabinet Heater 81kW
- 81kW Variable Heat Output
- Multi-Fuel Flexibility
- Durable Heat-Resistant Stainless Steel
- Advanced Safety Mechanisms
- Double Intake Fans Ensure Consistent Efficient Heating
- One-touch Automatic Ignition
ZM Heaters
ZM40 Automatic Multi-Fuel Waste Oil Cabinet Heater 47kW
- 47kW Variable Heat Output
- Multi-Fuel Flexibility
- Durable Heat-Resistant Stainless Steel
- Advanced Safety Mechanisms
- Double Intake Fans Ensure Consistent Efficient Heating
- One-touch Automatic Ignition
ZM Heaters
ZM55 Automatic Multi-Fuel Waste Oil Cabinet Heater 62kW
- 62kW Variable Heat Output
- Multi-Fuel Flexibility
- Durable Heat-Resistant Stainless Steel
- Advanced Safety Mechanisms
- Double Intake Fans Ensure Consistent Efficient Heating
- One-touch Automatic Ignition
ZM Heaters
ZM135T-KIT Multi-Fuel Waste Oil Cabinet Heater 35kW
- 15kW-35kW Variable Heat Output
- Multi-Fuel Capability
- Open Flame Combustion Chamber & THERMO Blower
- 55L Built-in Fuel Tank
- Advanced Safety Mechanisms
- Simple Manual Ignition with LED Control Panel
- Standard Flue Kit Included
ZM Heaters
ZM130-KIT Multi-Fuel Waste Oil Cabinet Heater 33kW
- 17kW-32kW Variable Heat Output
- Multi-Fuel Capability
- Open Flame Combustion Chamber & THERMO Blower
- 55L Built-in Fuel Tank
- Advanced Safety Mechanisms
- Simple Manual Ignition with LED Control Panel
- Standard Flue Kit Included
ZM Heaters
ZM150 Multi-Fuel Waste Oil Cabinet Heater 52kW
- 30kW-52kW Variable Heat Output
- Multi-Fuel Capability
- Open Flame Combustion Chamber & THERMO Blower
- 75L Built-in Fuel Tank
- Advanced Safety Mechanisms
- Simple Manual Ignition with LED Control Panel
ZM Heaters
ZM135T Multi-Fuel Waste Oil Cabinet Heater 35kW
- 15kW-35kW Variable Heat Output
- Multi-Fuel Capability
- Open Flame Combustion Chamber & THERMO Blower
- 55L Built-in Fuel Tank
- Advanced Safety Mechanisms
- Simple Manual Ignition with LED Control Panel
ZM Heaters
ZM130 Multi-Fuel Waste Oil Cabinet Heater 33kW
- 17kW-32kW Variable Heat Output
- Multi-Fuel Capability
- Open Flame Combustion Chamber & THERMO Blower
- 55L Built-in Fuel Tank
- Advanced Safety Mechanisms
- Simple Manual Ignition with LED Control Panel
REMKO
REMKO HTL 200-EC Oil Heating System 182kW
- 182kW Nominal Heat Power
- Biodiesel B7/B10 & HVO Biofuel Compatible
- Full Automatic Control through Optional Thermostat
- Maintenance-Friendly Removable Side Parts
- Heating & Ventilation for Seasonal Climate Control
- Special Radial Fans with EC Motor
REMKO
REMKO CLK Mobile Gas Heater Series 26.5kW - 144kW
- 26.5kW - 144kW Heating Capacity
- Compatible with Propane Gas
- Highly Efficient with No Preheating Required
- Ideal for Greenhouses & Construction Site Heating
- Plug Connection for Control of Room Thermostat
- Features Built-in Gas Burner
REMKO
REMKO CLK Mobile Oil Heater Series 26.5kW - 144kW
- 26.5kW - 144kW Heating Capacity
- Compatible with B7/B10 Biodiesel & HVO Biofuel
- Electric Oil Preheating
- Ideal for Greenhouses & Construction Site Heating
- Plug Connection for Control of Room Thermostat
- Features Built-in Oil Burner
REMKO
REMKO ATK 25 Mobile Oil Heater 22.5kW
- 22.5kW Heating Power
- Compatible with B7/B10 BIodiesel & HVO Biofuel
- Designed For Easy Transport & Low Maintenance
- Simple & Quick Installation
- Ideal For Construction, Marquee Hire & More
- Efficent High-Pressure Oil Burning System
REMKO
REMKO CLK RV Mobile Oil Heater 77kW - 144kW
- 77kW - 144 kW Heating Power
- Compatible with B7/B10 Biodiesel & HVO Biofuel
- Electric Oil Preheating
- Ideal for Greenhouses & Construction Site Heating
- Automatic Radial Fan Direction & Rotation Control
- Features Built-in Oil Burner
REMKO
REMKO DZH Series Industrial Mobile Oil Heaters 20kW - 95kW
- 20kW - 95kW Heating Capacity
- Compatible with Biodiesel B7/B10 & HVO Biofuel
- Built for Easy Transport & Quick Setup
- Direct Heater with 100% Efficiency
- Stainless-Steel Combustion Chamber
- Integrated High-Pressure Oil Burner System
REMKO
REMKO HTL 250-EC Oil Heating System 201kW
- 201kW Nominal Heat Power
- Biodiesel B7/B10 & HVO Biofuel Compatible
- Full Automatic Control through Optional Thermostat
- Maintenance-Friendly Removable Side Parts
- Heating & Ventilation for Seasonal Climate Control
- Special Radial Fans with EC Motor
REMKO
REMKO HTL 80 Oil Heating System 77kW
- 77kW Nominal Heat Power
- Biodiesel B7/B10 & HVO Biofuel Compatible
- Special Radial Fans
- Full Automatic Control through Optional Thermostat
- Maintenance-Friendly Removable Side Parts
- Heating & Ventilation for Seasonal Climate Control
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.