Energy Logic started out as a concept that Environmental Lawyer, Wayne Robertson was looking to make happen. His vision was to design a product that would and could safely and effectively burn used oil. Many months of extensive research went into this project and soon Mr. Robertson would bring on Gene Brigg who happens to be a very world known engineer into the project. Along with Chris Gansel they brought their ideas together and soon formed their first used oil heater. The company was called Black Gold and soon the trio had six design patents under their belts.Energy Logic Waste Oil Furnace Buyers Guide

About 20 years later, they have become one of the leaders in used oil today. In 2002, they changed the name of the company from Black Gold to Energy Logic. Their company is based on providing the best service, customer support and the utmost professionalism. The concepts of their products are simple. For very gallon of used oil, it provides about 140,000 BTU’s of energy. With the Energy Logic Used Oil Heater and Boilers, the used oil that would normally be thrown away was converted into a much more valuable way to provide energy to businesses.

One of the best things that we can do right now is recycle. Recycling used oil for a better way to heat our businesses is a great way to do just that. By recycling the used oil you will be able to start saving money on your energy bills, you will stop paying out money for companies to get rid of the oil once you have used it and you can protect yourself from what is called Superfund liability. The Superfund is a program set up by the federal government to help clean up uncontrolled hazardous waste sites and with the Energy Logic Products this will not be a problem.

These systems work by taking the oil your furnace has already used and recycled it into another free source of energy. Each of the Energy Logic products are UL Listed, approved by the Environmental Protection Agency for commercial use only. These furnaces and boilers are all legal in the United States and Canada with the exceptions of Ontario and California. These used oil heaters pass all of the recommendations of the EPA and the National Fire Protection Association.

The system works by using oils such as used motor oils, brake fluid, automatic transmission fluid, dirty diesel fuel and industrial oils. The system basically works as the oil is vacuumed out of the tank by the unit’s metering pump and then the oils will run through the filter. Then after the filtering process is complete the oil travels to the pre-heater that will heat the oil to the perfect burning temperature, which is about 160 degrees Fahrenheit. Then the oil will flow to the nozzle block and then is lit by the electrodes when the combustion travels via air through Energy Logic’s patented Flame Retention Head, which will cause the flame to burn in a controlled setting.

The flame will travel to the combustion chamber where it will heat the stainless steel heat exchanger. Then the squirrel cage blower will bring in the cool air and force the air that is over the heat exchanger and it will warm up. The air that is heated will release from the lower panels to the facility where it is installed. The concept is simple and effective. Let’s take a look and see what Used Oil Heaters Energy Logic has to offer.

Energy Logic Waste Oil Furnace Model EL-140H

The Energy Logic Waste Oil Furnace Model EL-140H offers a heating capacity of up to 3500 square feet. This unit has a warm air temperature rise of 100 degrees to 120 degrees Fahrenheit or 37.8 degrees to 48.9 degrees Celsius. The fuel flow rate on the EL-140H is 1.0 gallons per hour or 3.78 liters per hour. The BTU Input per hour is 142,000 with airflow of 1000 cfm. The most commonly used fuels for the Energy Logic EL-140H are used crankcase oils, Automatic Transmission Fluids, No 2 Fuel Oil, Diesel Fuel and Hydraulic Fluids.

This model gas a fully functioning Fuel metering Pump that offers an accurate metering over the variety of fuels that can be used with this model. The main heat exchanger is made from an 18 gauge high temperature, corrosion resistant stainless steel. The heat exchanger is UL Listed and can heat up to 1500 degrees Fahrenheit. There is an Analog Hour Meter where the clocks will show actual burn time not blower time. The electrical requirements on this unit are 115 vac, 60 HZ, 25 amps with a dedicated circuit.

The unit is compact, the cabinet with the blower and the burner measure in at 18 inches in height x 18 inches in width x 92 inches in length. The flue exhaust diameter measures in at 8″. The fuel tank with a standard fuel tank is a single wall, 250 gallon workbench and an optional tank has a double wall workbench, which is also available. Some of the standard features on the EL-140H are the integrated air compressor, barometric damper, draft gauge and a squirrel cage blower. Some of the optional features include a various size fuel tanks and dual warm air outlet louvers.

By installing the Energy Logic EL-140H into your place of business, you are getting an energy efficient and effective way to heat up your shop. You will start saving money almost immediately. You will find that these used oil heaters compare much better than standard furnaces. One of the biggest problems when you own a shop is to keep it warm and with the EL-140H you can do just that. You will be surprised at how come you did not think of this sooner.

Energy Logic Waste Oil Furnace Model EL-200H

The Energy Logic EL-200H has a slightly bigger heating capacity than the EL-140H. It has a heating capacity of up to 5000 square feet. Just like the EL-140H, this used oil furnace can be used with crankcase oils, automatic transmission fluids, hydraulic fluids, diesel fuels and Number 2 fuel oil. There is a variety to choose from. Some of the standard features of the EL-200H is the Squirrel Cage Blower, Draft Gauge, Barometric Damper and the Air Compressor. Some of the optional features that could make your used oil furnace more efficient would be the different size fuel tanks and dual warm air outlet louvers.

You will need electrical requirements of 115 volts, 60 HZ and 25 amps that are dedicated to a separate circuit. The fuel tank on the EL-200H is a single wall, 250 gallon workbench; if you are looking for something more a double wall workbench is also available. This used oil furnace measures in with the cabinet and tank at 37.5 inches in height x 32 inches in width x 60 inches in length, these measurements also include the pump. The primary heat exchanger on this unit is constructed with an 18-gauge high temperature stainless steel, which also provides protection from corrosion and rust. It is UL Listed to have a 2000 degree Fahrenheit capacity.

The EL-200H also has an Analog Metering Clock, which will provide you with actual burn time of the unit not the blower time. The exhaust flue measures in at 8 inches in diameter. The Fuel Flow Rate on this unit is 1.4 gallons per hour with a warm air temperature rise of 100 to 200 degrees Fahrenheit. The input BTU”s are 200,000 per hour and the Fuel Meter Pump has a precision metering with a wide range of used fuels.

If you have a small to mid size shop that you are looking to save money on your heating costs this year then check out the Energy Logic EL-200H. You will find out that you can save money while you have a nice warm heated shop without cold spots.

Energy Logic Waste Oil Furnace Model EL-340H

The Energy Logic EL-340H is the largest of the three used oil furnaces; this unit has the capacity of heating 8500 square feet. The most commonly used fuel oils are the diesel fuel, Number 2 Fuel Oil, hydraulic fluid, automatic transmission fluid and used crankcase oils. This unit has a heating capacity of 340,00. BTU’s per hour, which is the strongest of these three units. The warm air outlet is 19 inches in width x 25 inches in height. The electrical requirements on this unit are 115 volts with 60 Hz and a 25 amp dedicated circuit.

Some of the standard features that the EL-340H has to offer are the Barometric Damper, Draft Gauges, Squirrel Cage Blower and an incorporated Air Compressor. Some of the additional options available are the different size fuel tanks and dual warm air outlet louvers. The exhaust flue diameter is 8 inches. The system is compact in style it measure in with the pump and tank at 37.5 inches in height x 32 inches in width x 60 inches in length. The unit weighs about 895 pounds with the tank.

The main heat exchanger is made from a strong 18-gauge high temperature stainless steel with the protection against rust and corrosion. The heat exchanger is UL rated for 2000 degrees Fahrenheit. The airflow of the EL-340H is 2800 CFM and has a fuel flow rate of 2.25 gallons. The warm air temperature rise is between 100 and 120 degrees Fahrenheit. It is a UL Listed System and it has an accurate metering system that will see over a variety of different fuels that may be used.

The system has an Analog Hour Meter that will record the time that the unit is burning rather than blowing for a more precise reading of how the unit is performing. If you have a mid to larger size shop space that you want to heat effectively and save money then the Energy Logic EL-340H would be a asset to your facility.

Frequently Asked Questions

How much space will these Used Oil Furnaces heat?

Each model will heat a specific space; the EL-140H has the capacity to heat up to 3,500 square feet. The EL-200H has the heating capacity to heat up to 5,000 square feet and the EL-340H has the capacity to heat up to 8,500 square feet.

How much fuel will each unit consume?

Each unit has their own rating; the Energy Logic EL-140H will use about 1.0 gallons of fuel per hour. The Energy Logic EL-200H will use about 1.4 gallons of fuel per hour and the Energy Logic EL-340H will use about 2.3 gallons of fuel per hour.

What is the heating capacity of each Energy Logic Used Oil Heater?

The Model El-140H has the input heating capacity of 140,000 BTU’s per hour. The Model EL-200H has the input heating capacity of 200,00BTU’s per hour and the Model EL-340H has the input heating capacity of 340,00 BTU’s per hour.

Will the units be able to be ducted on both sides for installation?

Yes, each one of the Energy Logic Used Oil Furnaces can be ducted on either side and for up to 30 feet.

What kind of fuel can be used with these heaters?

It is recommended that any type of oil that has a flashpoint of 400 degrees or less and up to 90 in weight can be used. Oils such as used motor oils, some brake fluids, gear lubricants, diesel fuels, industrial oils and automatic transmission fluids can be used. It is NOT recommended that you add any type of gas, paint thinner, solvents that contain chlorine or any antifreezes to the tank.

Can Synthetic Oil be used on these furnaces?

Yes, but a 50/50 mix with the diesel fuel, used automatic transmission fluids and used oils must be used.

Can a Vegetable Oil be used?

You can use Vegetable Oil but it has to be heated at least 50 degrees to stop any clogging of the filters, there must be a 50/50 mix with the diesel fuel, transmission fluids and used oils.

Can the fuel be pumped from using an outside pump or an underground tank?

It can be done but only by using a special transfer pump.

How far can the fuel pump on these units push the fuel?

The pumps can actually push the fuel up to 150 feet.

Does the tank have to be vented outside?

Yes, you must also install a proper emergency vent cap on the tank as well.

Can a paper element filter be used to screen the oil on these heaters?

It is not recommended since paper will breakdown much faster. It is recommended that a 140 micro, stainless steel filter be used for the best operation.

Can I run a flue pipe through the wall?

You can run a flue pipe through the wall but at no more than 45 degrees and at no more than 10 feet on an angle. The flue must also be at least 4 feet over the highest point on the roof.

Can any of the Energy Logic Units be used on my home?

No, the Energy Logic Used Oil Furnaces are strictly for commercial purposes only.


If you are a business owner with a shop, stop wasting money on furnaces that can’t get the job done. Energy Logic has been serving the commercial industry since 1984; they have since grown into one of the leaders in the used oil industry. There are 2 ways that you can purchase an Energy Logic Used Oil Heater; one way is to buy one. When you purchase an Energy Logic Unit they can pay for themselves within the first year of use. You will soon start to see savings on your energy bills within a month or so. The second way is to Lease, with an Energy Logic Lease you may be able to start to save money and pay for the price of the lease at the same time.

There is a lease application on the Energy Logic website under learn more. You will be able to get back the used oil with an Energy Logic Heater and start saving money every day. If you live in the Asia, Belarus, Kazakhstan, Russia and Ukraine, North America and the United Kingdom and are interested in the Energy Logic Furnaces click on the Where to Buy link on the website. Fill out the online contact form and a representative will contact you within 48 hours, can you ask for more?

You will also be able to figure out how much money you will be saving with an Energy Logic Heater. On the website there is a Savings Calculator on the website, simply fill out the necessary fields and you can see how much money your new Energy Logic Heater can save you. With heating costs going up, now is the time to start looking into a heating system that will save you money and provide the heat that you need.