The Ultimate Guide to Radiant Heat Boiler

The Ultimate Guide to Radiant Heat Boiler

A radiant heat boiler is an efficient and economical way to heat your home. It works by distributing warmth generated by an electric boiler throughout the house, rather than allowing it to dissipate as waste heat. However, radiant heat requires a boiler specifically designed to meet its needs. In this article, we’ll discuss the different types of boilers available for radiant heating installations and show you how to size them correctly for your application.



What type of boiler do I need for radiant heat?

Radiant heat boiler system

In order to provide radiant heat, your boiler should be a high-efficiency boiler that is designed to condense the water vapor in its exhaust. This will ensure that there is no loss of heat from your system since the hot water vapor in your boiler’s exhaust has been converted into steam and sent through radiators throughout your home.

The capacity of your new boiler must be large enough to produce enough hot water for all of the appliances running in your home at once—and if you live in an area with cold winters, this could mean hundreds or even thousands of gallons per day.

In addition to being able to generate high amounts of hot water for multiple uses throughout your home (think showers, laundry machines, and dishwashers), radiant heat boilers also need to be able to use both fuel oil and natural gas—so look for one that can work with both types of fuels so you don’t have to make changes later on down the line if you decide on converting over entirely from one type of energy source over another.



How does a radiant heat boiler work?

Radiant heat boiler working principle

A radiant heat boiler is a type of hot water heating system that uses coils to disperse heat from the furnace. Unlike traditional boilers, which generate steam and then distribute it through radiators or baseboard heaters, radiant boilers don’t require any piping at all. Instead, they radiate their heat directly into rooms via an electric element similar to those used in space heaters. This means these systems are quiet, unobtrusive, and extremely energy efficient. They use up to half as much energy as traditional hot water systems while still providing optimal warmth to your home (and with far less maintenance).

It’s also important to keep in mind that this type of boiler isn’t limited just to homes. It can also be used by businesses or institutions looking for efficient heating solutions without having large amounts of space available.


radiant heat boiler


What fuels can the radiant heat boiler use?

Wood fired boiler for radiant heat

The radiant heat boiler can operate on a variety of fuels, from gas to wood pellets. It doesn’t matter whether you’re burning wood in your house or at the local power plant—the radiant heat boiler can handle it all.

You’ll have no trouble finding fuel sources for your new radiant heat boiler:

  • Gas
  • Oil
  • Wood pellets
  • Pelletized wood chips, pine cones, and other biomass products (such as corn stalks)


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Advantages and disadvantages of radiant heat boiler.

Radiant heat boiler pros and cons

Radiant heat boilers are the most efficient type of boiler because they burn less fuel and generate less waste than other types of boilers. There are several advantages and disadvantages to radiant heat boilers.


  • Low operating costs due to its high efficiency, which reduces fuel use and cost of operation.
  • High energy efficiency for heating water and space conditioning.
  • Can be used in both hot water generation and space heating.


  • They’re expensive to install. Radiant heat boilers must be installed by a professional and require a large amount of extra piping throughout your home for the system to function properly.
  • Radiant heat boilers cost more in upkeep than other types of boilers because they require monthly cleaning and flushing with special chemicals that can be expensive if you don’t want to do it yourself.
  • They cannot operate below-freezing temperatures (32 degrees Fahrenheit). So if you live in an area where temperatures get much below this, such as Minnesota or Canada, then consider purchasing another type of boiler instead so it will still work during the winter months!


radiant heat boiler system


How to size a radiant heat boiler?

Radiant heat boiler calculator

To determine the size of a radiant heat boiler, you need to:

  • Determine the square footage of the area heated. This can be done by measuring it yourself or using an online tool like this one.
  • Determine the BTU output required for your space. If you want to know how many gallons of water will be heated per hour, divide your total square footage by 10 (which equals 100 square feet).
  • Calculate how much fuel you’ll need based on cost and efficiency ratios. You may also want to consider storing more than one type of fuel if they have different costs as well as storage capacities; this will allow you to be more flexible while saving money over time.


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How much does a radiant heat boiler cost?

Radiant heat boiler cost

Radiant heat boilers cost $3,500 to $15,000 or more. However, these numbers can vary widely depending on your boiler’s size and brand. If you’re looking for a radiant heat boiler that operates with natural gas and has a capacity of up to 200 gallons per hour (mph), expect to pay between $6,000 and $8,000. A radiant heat boiler that uses propane gas and has a capacity of up to 200 mph will cost slightly less—around $5,600 to $6,800.

The price of radiant heat boilers is also dependent on their efficiency and how much they save you in energy costs. If you have a small household or if you don’t spend much time in your home during winter months, then it may be more cost-effective for you to use a traditional boiler instead of a radiant heat one.


radiant heat boiler diagram



Radiant heat boilers are a great way to add warmth and comfort to your home. They’re more efficient than other types of heating systems, and they don’t require as much maintenance. They are also highly customizable, which means you can get exactly what you need in order to achieve your desired level of heating efficiency! If you want more information on radiant heat boiler installation or any other type of boiler service, contact us today: +0086 186-2391-5479!


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