Oil Boilers for Home Heating – Buyer’s Guide!

There are a number of ways to heat up the home, and one of the most common, and older methods is the use of an oil boiler. In fact, the majority of pre-1990’s homes will most probably have an old oil boiler. Boilers use various sources of energy to power them, these include natural gas, heating oil, propane, electricity or a biodiesel-oil blend. The latest oil boiler systems are extremely efficient, providing a 98.5% efficiency score in some cases.

The term central heating came from the installation of an oil boiler in a central location, the boiler would then pump the hot steam and water to heat up the home as well as provide hot water for washing. The main difference between oil boilers and non-boiler type systems is that an oil boiler takes time to heat up the water before it disperses it around the house.

I Made A List Of Top-Rated Oil Boilers for Home Heating

Product ImageProduct NameBTUAFUEMore Information
1.Goodman GMSS961205DN Single Speed 1-Stage Upflow/Horizontal Gas FurnaceGoodman GMSS961205DN120MBH96%More Information
2.Burnham MST MegaSteam 3-Stage Oil Fired Boiler Less Tankless Coil, 1.05 gph, 95 MBHBurnham MST396SL-HB95MBH86%More Information
3.Crown Boiler Company/Velocity Boiler Works Tobago (TWZ-150)Crown Boiler Company TWZ004WCZ3SH156MBH84%More Information
4.Weil McClain CGt - 133,000 BTU - Hot Water Combi Boiler - NG - 82.1% AFUE - Power Vented - 0 to 2,000 Ft. AltitudeWeil-McLain CGt-5133MBH82.1%More Information

Boilers that use oil are usually found in areas that do not have access to natural gas, and the oil or energy source is stored in large tanks. As such, oil boiler prices are directly affected by the changing process in crude oil.

The modern oil boilers, which I present here, use biodiesel fuels, this fuel produces less pollution, but is also related to the crude oil prices. Biodiesel also acts as a lubricant and even self-cleans the system, so maintenance costs are lower.

Let’s Take a Look At The Four Best Oil Boilers For Home Heating:

1.Goodman GMSS961205DN Single Speed 1-Stage Upflow/Horizontal Gas Furnace

This is the Goodman GMSS961205DN, a Single Speed 1-Stage Upflow Horizontal Gas Furnace with Low Nox, 96% Afue, 120,000 Btu/H, 2,000 Cfm.


This furnace has a 96% AFUER which is one of the highest you will find, this means that you get 96% efficiency in fuel for heat conversion, and this is a great saver when compared to the competition.

This model comes is made out of a heavy-duty aluminized-steel tubular heat exchanger with a stainless-steel secondary heat exchanger and works with a single-stage gas valve. Ignition is automated with a silicon nitride igniter, and there is a silent single-speed induced draft blower that provides optimized performance. To assure that the temperature is controlled, this model comes with a self-diagnostic control board.


  • Heavy-duty aluminized-steel tubular heat exchanger
  • Stainless-steel secondary heat exchanger
  • Single-stage gas valve
  • Durable silicon nitride igniter
  • Quiet single-speed induced draft blower
  • Self-diagnostic control board


This is a classic oil and gas boiler heater that delivers one of the highest returns on investment at 96% efficiency, is real value for money.

2.Burnham MST MegaSteam 3-Stage Oil Fired Boiler Less Tankless Coil, 1.05 gph, 95 MBH

This is the Burnham Megasteam (MST) Boiler, which is a highly efficient Oil-Fired steam boiler providing 86% AFUE in a 3 pass heat exchange system.


This oil fired efficient system delivers 86% efficiency, and operates through their unique 3-pass heat exchanger that delivers exceptional efficiency with lasting steam quality.

This oil-fired boiler uses tankless coils and heater, as well as a Beckett AFG burner and the materials provide a corrosion resistant performance that will not clog up the system after a few months of use.

This ENERGY STAR Certified device uses the Burnham engineered 3-Pass design and will warm your home in moments.


  • Unique 3-pass cast iron sectional design
  • Very stable waterline, high corrosion resistance
  • Superior steam quality


If it sonly a heating system, then this steam heater will provide you with very quick performance and is highly efficient at 86% AFUE.

3.Crown Boiler Company/Velocity Boiler Works Tobago (TWZ-150)

The Tobago (TWZ) Series boiler is a cast-iron, oil-fired, water boiler. This model connects to a standard chimney provides a 156 MBH heating property with 84% AFUE.


The TWZ-150 is a Crown Boiler company product sold exclusively through their service provider. This model is their Tobago model, and comes with a standard Beckett oil burner. You can change that for a Riello or Carlin burner.

This uses a wet-base heat exchanger butyl into a cast-iron burner with cast iron swing door, and includes a 3-prong quick disconnect for easy service. The controls are Honeywell, and the circulator is Taco, the unit comes with a barometric damper.

This is a 4-section heating capacity boiler, and has a 156 MBH burner capacity.


  • Residential cast iron oil boiler
  • Takes in 0.65 to 2.0 GPH
  • Output efficiency is between 84.0% – 86.0%
  • Three burner options; Beckett, Carlin or Riello


The TWZ-150 is an exceptional oil boiler unit that is perfect for small homes. Since this is a configurable model, you can always change parts to make it as bespoke to your needs as required.

4.Weil McClain CGt – 133,000 BTU – Hot Water Combi Boiler – NG – 82.1% AFUE – Power Vented – 0 to 2,000 Ft. Altitude

The Weil-McLain CGt is a one size built-in tankless heater that also provides domestic hot water, and provides 82% AFUE.


The CGt uses stainless steel burners integrated with a built-in control panel and has flexible venting. The design includes a two-piece top jacket panel set in a cast iron unit on a steel base, that has a built in air separator. The Steel jacket is insulated, and it comes with radiation plates. The control module uses an intermittent electronic ignition system, and provides you with a diagnostic panel with LED indicators. The system integrates a 3-Way Valve and Piping Tree, and comes with an Air Pressure Switch, and a Ambient Temperature Switch.

This is a tankless heater that provides 133 MBH and delivers a 109 AHRI MBH. The boiler capacity is 3.1 gallons, and the vent size is 3”. This model produces an efficiency rating of 82% AFUE.


  • Insulated Extended Steel Jacket
  • Cast Iron Sections with Radiation Plates
  • 3-Way Valve and Piping Tree Components
  • High-Grade Stainless-Steel Burners
  • Tankless Heater and Controls
  • High-Limit Temperature Control


This is a classic boiler model designed to deliver both steam and water in a closes and open system. You get the benefits of home heating and hot6 water in one highly streamlined system that provides an 82% AFUE.

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