Boiler Ratings by Brand

As a homeowner, you want a heating system that not only keeps your space warm and comfortable but also offers energy efficiency. Boilers are one of the most common home heating systems, especially in older houses in cold-climate areas. Today, you can purchase and install a modern boiler that will help you save on your household energy bills, deliver great efficiency, increased heating control, quiet operation and save you space. But to get all these things, you need to pick from the best boiler brands on the market. To make the best choice, it helps to understand how boilers work. 

What is a boiler?

A boiler is an enclosed appliance that produces either hot water or steam for domestic or commercial heating and hot water supply. The boiler provides a means for combustion and a heat transfer surface between the combustion products and the water. The heated water then circulates through a piping system, effectively transferring heat for different applications, including home-heating, power generation and other processes.

Different types of boilers work in different ways. But the basic working principle involves heating fluid in a storage tank or a network of pipes to a high temperature. The fuel type that a boiler uses can be electricity, oil or natural gas. A pump then circulates the heated liquid throughout the house to provide heat. A thermostat controls the system to help maintain indoor temperatures at the desired levels. There are two main types of boiler systems: fire tube and water tube boilers.

The best boiler brands

There are many different boiler choices out there, but buying and installing a boiler is a huge investment. It’s important to be well informed so you can pick the right unit for your needs. These are some of the best boiler brands on the market:

Worcester Bosch

Worcester Bosch is not only a well-known brand but is also considered one of the best boiler brands today. Its products are renowned for their high-quality standards and energy efficiency. The brand offers different types of boilers, including gas, oil-fired and condensing boilers. A Worcester Bosch boiler has a lifespan of between 12 and 15 years, with the warranty ranging from 5 to 10 years. However, the exact warranty will depend on the specific kind of boiler you choose. Compared to most of the other leading brands, Worcester Bosch boilers are among the most expensive, with prices starting from $960. If you use an accredited installer you get a 7-year guarantee and 5-year guarantee for gas and oil boilers respectively.  

Buderus Boilers

Buderus manufactures residential and commercial boilers that are known for delivering both energy savings and consistent heating experience. The company emphasizes the quick installation and easy maintenance of their boilers. With proper maintenance, a Buderus Boiler will serve you for at least 10 years. What you pay for a Buderus Boiler will depend on whether you are buying an oil or gas boiler, with prices starting from $1,500. Residential boilers carry a 5-year warranty and a limited lifetime warranty for defects on the heat exchanger. Commercial models have a 1-year warranty on the full boiler and a limited 5-year warranty on the heat exchanger.

Ideal Boilers

Ideal Boilers rivals Worcester Bosch in terms of quality but is significantly less expensive, making this a favorite brand among consumers. Newer boiler models from this brand have a lifespan of 12 to 15 years. The manufacturer offers a 2-year warranty on their Ideal Logic boilers, a 7-year warranty on Ideal Logic Plus boilers, and a 10-year warranty on Ideal Vogue boilers that are fitted with an Ideal system filter. Prices start from $840 for the unit itself. Customers whose boilers are in warranty can contact the company to arrange for an engineer visit for repairs and servicing. If your unit is out of warranty, you can take advantage of the maintenance and support plan.   

Vaillant

Vaillant Boilers are ranked among the best in the market, with its units offering consistent comfort and impressive energy efficiency. The company manufactures boilers for both residential and commercial properties, producing a line of combi boilers that offer quiet operation and lower energy consumption. Expect modern Vaillant Boilers to last for around 15 years or even longer if serviced regularly. Depending on the model you buy, Vaillant Boilers will have 2-5 years parts and labor warranty as standard. Some carry a 7-10 year warranty when they are installed by a Vaillant advance installer. This brand has a great support network and service team to help with problems.

Baxi

Baxi boilers rank among the best owing to their reliability, high efficiency and simple operation. These boilers seem to last around 10 to 14 years, outperforming a good number of other brands in the market. In terms of the warranty, the boilers carry at least a 1-year manufacturer’s warranty, while certain products are guaranteed for up to two years. The brand offers an extended warranty option at the end of the initial warranty period. However, consumers are required to register their boilers to receive full warranty terms. Prices for these units start from as low as $1,100.

How we chose the best boiler brands

When choosing the best boiler brands for use at home, there are several factors that we considered. These factors helped us pick the right brand for the various needs of different consumers. With so many different boiler brands to choose from, the process can be overwhelming. Taking the factors below into account made it possible for us to compile this list.

Public reviews

One of the best ways to compare leading boiler brands and choose the right model is by reading public reviews. Customers who’ve purchased and used those boilers for a while can provide valuable insight and help distinguish the reliable and efficient boilers from those that are not.

System reliability

Buying and installing a boiler is a huge investment. As such, we selected the brands whose units are consistent and long-lasting. A reliable boiler will save consumers money, time and discomfort.

Warranty options

For such a large investment, it makes sense to protect it. This is why we compared the warranty offers from different brands. A warranty is a sign that the manufacturer stands by the quality of its product. With an active warranty, the manufacturer will cover certain costs in case of a malfunction. In essence, a warranty assures the buyer that the boiler will deliver reliable performance for a reasonable number of years.

General pricing

Boiler prices vary widely. As much as we weighed features and capacities, we also had to consider the all-in cost. Beyond just the unit price, we also looked at the cost of running and maintaining each particular unit. 

Strong contractor or service network

Every boiler will need professional service and maintenance from time to time, as will the overall heating system. All of the brands on our list currently have a strong contractor or service network.

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User reviews

FurnaceCompare.com has collected thousands of reviews from homeowners since 2006. Each reviewer assigns a rating from 1 (“Very Unsatisfied”) to 5 (“Very Satisfied”) that describes their impression of their boiler. This list ranks boilers from best to worst, based on the average of those consumer satisfaction ratings.

While we have collected reviews on more than 70 different brands of boilers, we have not included all those brands in the list above. For most of those brands we only have a handful of reviews, and that raises the risk that a single reviewer could bias the average rating too far in one direction. For that reason, we have only included the average rating for brands that at least 10 consumers have reviewed. However, you are welcome to read all of our boiler reviews.

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