Best Generator For Boiler in 2023: Top Picks and Buying Guide

Last Updated on September 26, 2023 by mfttherese

A boiler room.

As the chill of winter settles in, a boiler serves as the heart of every homeowner’s heating system, providing a reliable source of warmth when the temperature drops. However, power outages can turn this comforting haven into a chilly inconvenience. That’s where the best boiler generator comes to the rescue.

The best generator for a boiler depends on various factors, such as the size of the boiler, the power output, and the application’s specific requirements. The top 3 generators for boilers we recommend are the Westinghouse iGen2200, Yamaha EF2000iSv2, and Honda EU2200i.

This article will explore the best generator options for homeowners looking to keep their boilers running smoothly during power interruptions. Should you opt for a standby generator, inverter, or a portable one? We will also review our top 3 generator recommendations to help you in your decision-making.

Top 3 Generators for Boilers

Westinghouse iGen2200

Yamaha EF2000iS

Honda EU2200i

The Westinghouse iGen2200 Inverter Generator The Yamaha EF2000iS The Honda EU2200i
2200 Peak Watts 2000 Maximum Watts 2200 Maximum Watts
1800 Rated Watts 1600 Rated Watts 1800 Rated Watts
Quiet (52 dBA) 4-stroke OHV engine Stable power – inverter
With easy-start Convenient for battery charging Very quiet & portable
Lightweight and easy to move around Soundproof type Great warranty
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When choosing the best generator for boiler, the three top options to consider are the Westinghouse iGen2200, Yamaha EF2000iSv2, and Honda EU2200i Inverter Generator.

These generators are known for their reliability and efficiency in providing power.

1. Westinghouse iGen2200

(2200 Peak Watts and 1800 Rated Watts)

The Westinghouse iGen2200 Inverter Generator

You’ll love the Westinghouse iGen2200 Inverter Generator for its compact design and reliable power output. When it comes to generator options, the iGen2200 stands out among other generator brands with its impressive features and exceptional performance. Its compact design makes it easy to transport and store, making it a convenient choice for both indoor and outdoor use.

With a power output of 2,200 watts and a peak output of 2,500 watts, this generator provides ample power to run your boiler efficiently. The iGen2200 also boasts advanced fuel efficiency technology, ensuring longer run times on a single tank of gas.

Additionally, its low noise level ensures minimal disruption while operating.

Is Westinghouse iGen2200 worth your money? Whether you’re looking for reliability or portability, the iGen2200 is the perfect choice for your boiler needs.

Pros & Cons of The Westinghouse iGen2200


  • Efficient with up to 12-hour runtime at 25% load
  • Lightweight and easy to move around
  • Quiet (52 dBA)
  • With easy-start
  • Great watts than other same sized generators


  • Not as many features as some others

2. Yamaha EF2000iS

(2000 Maximum Watts and 1600 Rated Watts)

The Yamaha EF2000iS generator

The Yamaha EF2000iS is designed with noise reduction as a top priority, ensuring that you can fully immerse yourself in the tranquility of your surroundings without any disruptive buzzing once you use it to run your boiler.

Not only does it deliver noise reduction, but it also excels in fuel efficiency. With its advanced technology, this generator maximizes every drop of fuel to provide longer run times and fewer refueling stops.

When it comes to maintenance requirements, the Yamaha EF2000iS is built to be user-friendly and hassle-free. Its durable construction guarantees reliability and longevity, making it a trusted companion for all your indoor and outdoor use.

Is it worth the price tag? With its exceptional features and performance, this generator offers excellent value for your money.

Pros & Cons of The Yamaha EF2000iSv2


  • 4-stroke OHV engine
  • Oil warning system
  • Convenient for battery charging
  • Light recoil starting
  • Soundproof type


  • A bit expensive than others

3. Honda EU2200i

(2200 Maximum Watts and 1800 Rated Watts)

The Honda EU2200i generator

The Honda EU2200i features cutting-edge technology that ensures exceptional performance in various conditions. With a maximum output of 2,200 watts, this generator can easily power essential appliances and boilers.

Is it worth the price tag? When comparing prices, the Honda EU2200i may seem slightly higher than other models on the market. However, its superior performance and durability make it worth every penny. Customer reviews consistently highlight the generator’s reliability and fuel efficiency.

To ensure optimal performance and longevity, regular maintenance is crucial. Simple tasks like changing the oil regularly, cleaning or replacing air filters, and inspecting spark plugs can significantly extend the lifespan of your Honda EU2200i.

Experience peace of mind knowing that you have chosen a trusted companion with the Honda EU2200i Inverter Generator for all your boiler needs.

Pros & Cons of The Honda EU2200i


  • Very quiet & portable
  • Excellent Honda engine
  • Stable power – inverter
  • Great warranty
  • Advanced carbon monoxide detection system


  • No fuel gauge

Choosing the Best Generator For Boiler: What You Should Look For

When choosing a generator to run a boiler, several key points must be considered.

Power Output – Watts

When choosing the best generator for your boiler, one of the critical factors to consider is its power output. The generator capacity should meet or exceed the voltage requirements of your boiler system to ensure optimal performance.

A typical boiler operates at a power demand of around 200 watts. However, the burner motor initially needs a surge power of almost three times that amount, bringing us to a maximum of 600 watts. Also, bear in mind that the boiler’s circulation requires a starting power of roughly 300 watts and consumes about 100 watts when operating.

Check the boiler’s nameplate or user manual for the wattage rating or electrical consumption. Once you have a clear idea of the total wattage needed, it’s time to choose a generator that can handle that load.

Besides your boiler’s power requirements, consider other appliances or devices you may need to run simultaneously during an outage. These could include lights, refrigerators, sump pumps, or even medical equipment if necessary. Add up the wattages of these devices to calculate the total power needed.

Fuel Type

To ensure optimal performance, you should consider the fuel type for your boiler system. The choice of fuel can significantly impact boiler efficiency, environmental impact, cost analysis, power requirements, and maintenance considerations.

Firstly, it’s crucial to assess the boiler’s efficiency when evaluating fuel options, as different fuels have varying combustion efficiencies.

A thorough cost analysis must be conducted to evaluate the long-term expenses associated with each fuel type, including procurement and operational costs.

Furthermore, understanding the power requirements of your facility will help determine which fuel type can meet your energy demands effectively.

You can use various fuel types to run a generator for your boiler, depending on the type of generator and your specific requirements.

Portability and Warranty

Portability is essential when selecting a generator for your boiler system, allowing you the flexibility to quickly move it as needed.

Several portable generator for boilers are available on the market that offer varying levels of portability. Consider generators with wheels or handles for easy transportation.

In addition to portability, warranty coverage is another essential aspect to evaluate when selecting the best generator for your boiler. Look for manufacturers offering comprehensive warranty terms, preferably covering parts and labor. A solid warranty ensures peace of mind in case any issues arise during the lifespan of your generator.

To optimize portability and warranty coverage, research generators that provide excellent portability features while offering the best warranty terms in the industry. This way, you can confidently select a generator that meets your needs and provides long-term security and support for your boiler system.

Types of Generators for Boilers: Which is Better?

When choosing the best generator for your boiler, there are several types to consider.

A generator being used inside the boiler room.

Inverter Generators

Inverter generators, known for their compact design and quiet operation, have gained popularity recently, with sales increasing by 10% annually.

These portable power sources offer several benefits compared to conventional generators. Firstly, they provide clean and stable power output, making them ideal for sensitive electronics like laptops and smartphones. Additionally, inverter generators are more fuel-efficient, resulting in longer run times and reduced operating costs. They also feature advanced technology such as automatic voltage regulation and low oil shutdown for added convenience and protection.

Popular brands in the market include Honda, Yamaha, and Champion.

Overall, inverter generators are an excellent choice for those seeking a reliable power source that is both efficient and quiet.

Steam Generators

Steam generators offer several advantages over other types of generators. Firstly, they provide a constant and reliable power source, ensuring uninterrupted operation of your boiler system. Additionally, steam generators are known for their high efficiency in converting fuel into usable energy, reducing operating costs in the long run.

However, it’s essential to consider some disadvantages as well. Steam generators require regular maintenance to ensure optimal performance and prevent potential issues. This includes periodic cleaning to remove scale buildup and inspecting safety valves for proper functioning.

Steam generators also come with their own set of precautions. It is crucial to follow all the manufacturer’s safety guidelines to avoid accidents or injuries due to high-pressure steam release.

Overall, if you prioritize reliability and efficiency while being mindful of maintenance and safety measures, a steam generator could be an excellent choice for your boiler system.

Gas Generators

Gas power offers several advantages, including its high-efficiency rating, which ensures maximum output with minimal fuel consumption.

Gas generators also have lower maintenance requirements than other types of generators, reducing downtime and increasing productivity. Safety features are also important, and gas generators often come equipped with advanced safety systems to prevent accidents or malfunctions.

In terms of cost comparison, gas generators are more affordable in the long run due to the relatively low cost of natural gas. Overall, investing in a gas generator provides a dependable energy source and cost-effective and efficient operation for your boiler system.

Having explored the different types of generators for boilers, you might also be interested in finding the best generator for hot water heater

So, What is the Best Size Generator To Run A Boiler?

In short, you will need the right size generator to power a boiler. Sizing considerations are crucial when determining what size generator to run a boiler.

The power requirements of the boiler should be thoroughly evaluated to ensure that the generator can meet them effectively. Additionally, energy efficiency plays a significant role in choosing the appropriate generator.

For instance, you would want a generator with significantly larger power if you have a huge industrial boiler than the small one. There is no one-size-fits-all solution!

A cost analysis should be carried out to determine the most suitable option for your specific needs. This analysis involves calculating various generator options’ initial investment, ongoing maintenance costs, and fuel consumption. By considering these factors, you can make an informed decision that optimizes performance and cost-effectiveness.

When selecting a generator for powering your boiler, it is vital to choose one that meets your power requirements and provides optimal energy efficiency. Once you’ve selected the perfect generator, understanding how to hook it up to your boiler is the next crucial step.

Remember, finding the right-sized generator for your boiler is crucial for maintaining its functionality and achieving efficient energy usage while controlling costs.

Buying a Generator for Boilers: Tips and Precautions

When purchasing a generator for your boiler, finding the right one can be like finding a needle in a haystack. It’s crucial to consider various factors, such as generator features, budget considerations, maintenance requirements, safety precautions, and comparing different brands.

  • Size is critical. Look for models specifically designed for powering boilers, ensuring they have sufficient wattage and voltage capabilities.
  • Check for automatic start and stop functions or remote monitoring capabilities for convenience.
  • Determine how much you will spend on a generator while considering long-term fuel consumption and maintenance expenses.
  • Opt for generators with easy-to-access parts and straightforward maintenance procedures.
  • Safety precautions are paramount when dealing with generators. Look for models with low oil shutdown mechanisms or overload protection to prevent accidents or damage.
  • Consult with an electrician for proper guidance.
  • Always opt for quiet and portable for guaranteed convenience.

Fueling Comfort: Unveiling the Best Generator for Your Boiler

When selecting the best generator for your boiler, you must consider several factors mentioned in this post. You can make an informed decision by understanding the types of generators available and determining the appropriate size for your boiler.

Remember to prioritize safety precautions and follow expert tips while purchasing a generator. Just like a well-oiled machine powers a factory, choosing the right generator will ensure the smooth operation of your boiler system, like a conductor leading an orchestra flawlessly. is an independent review business. I am not affiliated with any manufacturers and do not accept paid reviews. When you buy through my links, I may earn a commission which helps me purchase more generators for testing. - Scott Krager

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