Dayton Portable Oil-Fired Heaters - Models 3VE48A, 3VE49A, 3VE50A, 3VE51A and 3VE52A - Operating Instructions & Parts Manual

Oct 23, 2026

Uploaded by moss~

Operating instructions and parts manual for Dayton portable oil-fired heaters covering models 3VE48A, 3VE49A, 3VE50A, 3VE51A, and 3VE52A. The manual explains intended temporary heating use in well-ventilated construction and repair environments, provides electrical and general specifications, outlines key product features and heater dimensions, and includes detailed general safety information. Safety guidance addresses hazards such as burns, fire, explosion, electrical shock, and carbon monoxide risk, emphasizing careful operation, ventilation requirements, fuel selection, and future reference retention.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages16

Reading Time40 min

AccessFree to download

Description

Specifications

Electrical specifications

General specifications

Introduction

Unpacking

Product Features

General Safety Information

Hazard levels and warnings

Ventilation and carbon monoxide risk

Assembly

Operation

Kerosene (1-K or Number 1 Fuel Oil)

Fueling Your Heater

Ventilation

Electrical outlet

Wiring Diagrams

Repair Parts Illustration Models 3VE48A, 3VE49A, 3VE50A, 3VE51A and 3VE52A

Repair Parts List Models 3VE48A, 3VE49A, 3VE50A, 3VE51A and 3VE52A

Troubleshooting Chart

Warranty Information

Operating Instructions & Parts Manual 3VE48A, 3VE49A, 3VE50A, 3VE51A and 3VE52A 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 3VE48A, 3VE49A, 3VE50A, 3VE51A and 3VE52A heaters are 45,000 to 215,000 BTU/Hr heaters. These heaters use 1-K Kerosene (see Operation section for alternative fuels) for combustion, and electricity to run the fan. It is primarily intended for temporary heating of well ventilated buildings under construction, alteration, or repair. This heater may be used in agricultural, industrial and commercial environments. Specifications ELECTRICAL SPECIFICATIONS Electrical Model Input Amperage Fuse Spark Plug Gap 3VE48A 120V, 60 Hz 1.4 125V/8 amp . 140”(3 . 5mm) 3VE49A 120V, 60 Hz 1.5 125V/8 amp . 140”(3 . 5mm) 3VE50A 120V, 60 Hz 2.3 125V/8 amp . 140”(3 . 5mm) 3VE51A 120V, 60 Hz 2.7 125V/8 amp . 140”(3 . 5mm) 3VE52A 120V, 60 Hz 2.8 125V/8 amp . 140”(3 . 5mm) GENERAL SPECIFICATIONS Figure 1 – Models 3VE48A and 3VE49A Figure 2 – Models 3VE50A, 3VE51A and 3VE52A Model Type of Fuel Input Rating Pump Pressure Fuel Tank Capacity Fuel Consumption Size L x W x H (Inches) Weight Lbs. (kg) 3VE48A 1-K Kerosene 45,000 BTU/Hr 3VE49A 1-K Kerosene 70,000 BTU/Hr 3VE50A 1-K Kerosene 125,000 BTU/Hr 3VE51A 1-K Kerosene 175,000 BTU/Hr 3VE52A 1-K Kerosene 215,000 BTU/Hr Table of Contents Page Description ....................... 1 Specifications ..................... 1 Introduction ...................... 1 Unpacking ....................... 1 Product Features .................. 2 General Safety Information ........ 2-3 Assembly ....................... 4-5 Operation ...................... 5-8 Kerosene (1-K or Number 1 Fuel Oil) .............. 5-6 Overview of Heater Design......... 6 Fueling Your Heater .............. 6 Ventilation ...................... 7 Electrical outlet .................. 7 3.0 PSI 5.0 Gallons .35 Gal/Hr 4.0 PSI 5.0 Gallons .50 Gal/Hr 5.0 PSI 10.0 Gallons .90 Gal/Hr 7.5 PSI 13.0 Gallons 1.3 Gal/Hr 9.0 PSI 13.0 Gallons 1.6 Gal/Hr Wiring Diagrams ................. 12 Repair Parts Illustration Models 3VE48A, 3VE49A, 3VE50A, 3VE51A and 3VE52A ......................... 13 Repair Parts List Models 3VE48A, 3VE49A, 3VE50A, 3VE51A and 3VE52A ......................... 14 Troubleshooting Chart ............ 15 Warranty Information ............. 16 Introduction Please read this USER’S MANUAL carefully. It will show you how to assemble, maintain and operate this heater safely and efficiently to obtain the full benefits of its many features. Consumer: Retain these instructions Long-Term Storage ............. 7-8 for future reference. MaForinmte5nS~~ ~~...................~~ ~~8-11~~ ~~Printed~~ ~~in~~ ~~Korea~~ ~~PIN001~~ ~~RTIFIE~~ US ~~ ® 096606053/227/VCPVP 05/05 D C E Dayton® Portable Oil-Fired Heaters Dimensions Models 3VE48A and 3VE49A Models 3VE50A, 3VE51A and 3VE52A Figure 3 – Heater Dimensions Product Features Extension Cord Wrap Electric Outlet (120V 5amp max non fused) Knob Hot Air Outlet Upper Shell Lower Shell Switch Fuel Tank Fan Guard Pressure gauge Fuel Gauge Fuel Cap Side Cover Lamp Thermostat (3VE49A only) Power/Reset Power Cord Handle Figure 4 – Models 3VE48A and 3VE49A Features Extension Cord Wrap Hot Air Outlet Lower Shell Handle Rear Fan Guard Pressure Gauge Storage Drawer Electric Outlet (120V 5amp max non fused) Fuel Gauge Fuel Cap Fuel Tank Drain Plug Power Cord Power/Reset Switch Figure 5 – Models 3VE50A, 3VE51A and 3VE52A Features General Safety Information Indica

FAQs

What models are covered in this manual?

The manual covers Dayton portable oil-fired heaters models 3VE48A, 3VE49A, 3VE50A, 3VE51A, and 3VE52A.

Where are these heaters primarily intended to be used?

They are primarily intended for temporary heating of well-ventilated buildings during construction, alteration, or repair.

Why is ventilation important and what CO risk is mentioned?

The manual warns to use the heater only in well-ventilated areas and specifies fresh outside-air opening requirements. It also highlights carbon monoxide poisoning risks and that early symptoms can resemble flu-like symptoms.

Oct 23, 2026

Uploaded by moss~