Dayton® Portable Oil-Fired Heaters - Operating Instructions and Parts Manual - Models 3E358B and 3E359B

Oct 23, 2026

Operating instructions and parts information for Dayton portable oil-fired heaters, covering models 3E358B and 3E359B. The manual explains heater purpose, fuel requirements, ventilation expectations, and key operating safety rules. It includes step-by-step unpacking, product identification and component locations, plus general specifications such as output ratings, electrical input, fuel type and tank capacity, fuel consumption, motor speed, dimensions/weights, and spark plug gap. It emphasizes reading all warnings and following proper fueling and safe operation practices.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages24

Reading Time1 h 0 min

AccessFree to download

General Specifications

Description

Unpacking

Product Identification

General Safety Information

| Operating Instructions & Parts Manual | | 3E358B and 3E359B | | | --- | --- | --- | --- | | Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference.
Dayton® Portable Oil-Fired Heaters | | | | | Description
Dayton Models 3E358B and 3E359B are 350,000 Btu/Hr heaters and 600,000 Btu/ Hr heaters, respectively. These heaters use only Kerosene or No. 1 fuel oil for combustion and electricity to run the motor. They are primarily intended for well ventilated indoor or outdoor temporary heating of buildings under construction, alteration, or repair (Read General Safety Information section carefully) . They may be used in agricultural, industrial, and commercial environments. Products of combustion are vented into the area being heated. | | | Unpacking
1. Remove all protective packing applied to heater for shipment.
2. Remove heater from shipping container.
3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater. | |
Figure 1 – Model 3E358B | |
Figure 2 – Model 3E359B
Model 3E359B
600,000 Btu/Hr 11.0
Kerosene or No. 1 fuel
36.0 U.S. Gallons
4.0 U.S. Gallons/Hr 1725 RPM
3,300
110 psi
550 Lb
285 Lb
.075 inches | | | General Specifications
Model 3E358B
Output Rating ......................................... 350,000 Btu/Hr
Amperage at 120V 60 Hz ....................... 7.1
Fuel .......................................................... Kerosene or No. 1 fuel
Fuel Tank Capacity .................................. 30.0 U.S. Gallons
Fuel Consumption .................................. 2.5 U.S. Gallons/Hr
Motor 1725 RPM Hot Air Output (CFM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,350 Fuel Pump Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 psi Heater Weight with Fuel . . . . . . . . . . . . . . . . . . . . . . . 390 Lb Heater Weight without Fuel . . . . . . . . . . . . . . . . . . 180 Lb Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .075 inches | | | | Form 5S2514 Printed in U.S.A. 03430 0602/094/VCPVP Version B-For Reduction G016 .J ® Dayton Operating Instructions and Parts Manual 3E358B and 3E359B Dayton® Portable Oil-Fired Heaters Product Identification Upper Shell Hot Air Outlet Lower Shell Motor and Pump Assembly Fuel Cap Thermostat Power Cord Fuel Tank Flame-Out Control Reset Button Figure 3 – Model 3E358B Upper Shell Thermostat Hot Air Outlet Lower Shell Figure 4 – Model 3E359B Motor and Pump Assembly Fuel Cap Power Cord Fuel Tank Flame-Out Control Reset Button Models 3E358B and 3E359B General Safety Information Make certain you read and understand all warnings. Keep these instructions for reference. They are your guide to safe and proper operation of this heater. Safety information appears throughout these instructions. Pay close attention to them. Below are definitions for the safety information listed throughout this manual. Under this heading, installation, operat ing and maintenance procedures or practices will be found that, if not carefully followed, WILL result in IMMEDIATE serious personal injury or death. Under this heading, installation, operating, and maintenance procedures or practices will be found that, if not carefully followed, COULD result in severe personal injury or death. Under this heading, installation, operating, and maintenance procedures or practices will be found that, if not carefully followed, MAY result in minor personal injury, product, or property damage. IMPORTANT: Not every possible circumstance that might involve a hazard

FAQs

What fuel types are allowed for models 3E358B and 3E359B?

Use only kerosene or No. 1 fuel oil. Do not use gasoline, naphtha, paint thinners, alcohol, or other highly flammable fuels.

What should be done before fueling the heater?

Ensure only the fuel specified on the heater data plate is used, extinguish all flames (including any pilot light), and allow the heater to cool. Inspect fuel lines and connections for leaks and repair any leaks before returning to service.

Why is carbon monoxide safety emphasized in the manual?

Carbon monoxide poisoning can be fatal. Early symptoms resemble flu-like signs such as headaches, dizziness, and/or nausea; seek fresh air immediately and have the heater serviced.

Oct 23, 2026

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