Boiler Replacement Cost for 2020

Average Costs For:
Most Homeowners Spent Between: Most People Spent: $6,960 - $10,370
Low End
$6,250
Average
$7,780
High End
$12,120

See costs in your area Start Here - Enter Your Zip Code


If you are building a new home or doing a major remodel, putting in a boiler as opposed to a central furnace will provide much greater efficiency and improved temperature control throughout your home.

Installing a boiler is one of the most efficient and functional options for whole house heating. Average installation costs range from $6,500 to $11,000.

We will review residential boiler prices and installation costs, as well as energy efficiency.

What is boiler heating?

A boiler (gas or oil) uses water as a heat transfer medium. The water is heated up inside the boiler, and then a pump sends it through pipes than can be connected to baseboard heaters, radiant flooring pipes, or radiators.

Boilers account for about 1.5% of all heating systems installed in the US. Actually, boilers and radiators are primarily installed in Northern states, where very low temperatures last for many months.

In most cases, homes are already outfitted with hot water radiators and boilers, and homeowners stick with them. Consequently, they repair or replace old boilers, pumps, radiators, pipes and other components of the system that are damaged or old beyond repair.

New boiler cost



Forced Hot Water Boiler Costs
Gas Boiler
$3900 - $5600
Oil Boiler
$4800 - $6700
Base Boards
$2100 - $3500

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Across the US, homeowners report spending around $6,500-10,000 to install boiler heating. Compared to the cost of a forced air furnace system, installing a boiler with radiators is roughly 3 times more expensive. However, its a superior heating system in areas that have prolonged cold weather.

Your total cost will depend on:

– the size of the house
– complexity of labor
– number of circulation valves
– number of radiators
– other system parts such as ducts, pipes, etc.

New radiators cost $100-500 each, depending on their size. Installing baseboard radiators costs $400-1,300 depending on the number of radiators and complexity of the job.

If you would like to install radiant flooring, expect to pay $3-7 per square foot, in addition to the costs of boiler installation.

Keep in mind that you may need to repair or completely replace old water pipes in order to make boiler heating work. Average cost to repair piping is $550-1,200. However, replacing the entire main line can cost anywhere from $1,575 – 4,900 depending on the size of the pipe and complexity of labor.

Average boiler prices

Installing or replacing a gas fueled boiler costs anywhere from $3,000-7,000 or more (including labor).

Your total replacement cost will depend on the type of boiler and complexity of the job. Keep in mind that a high efficiency gas boiler costs at least $1,000-2,000 more than a standard gas model.

Overall, the price of a boiler (oil or gas) depends on two factors: brand and efficiency (AFU). This efficiency rating describes how much of the boiler’s energy is actually being converted to heat as opposed to wasted, in real world conditions.

Standard efficiency boilers have an AFU of 80-85%.

High efficiency boilers have an AFU of at least 90%. While they cost a few thousand dollars more than a standard boiler, they can also save up to 30% on your heating costs.

An oil boiler costs 20-35% more than a gas one.



Forced Hot Water Boiler Costs
Gas Boiler
$3900 - $5600
Oil Boiler
$4800 - $6700
Base Boards
$2100 - $3500

See costs in your area Start Here - Enter Your Zip Code



How determine the right boiler efficiency for your home

If you want to accurately determine the boiler BTU output that will result in the most savings, its best to ask an HVC professional to conduct a manual J calculation. Often, the pro will do this for free, as part of providing you with estimate for a boiler install.

However, here is how you can make this estimate on your own:

– If your home is located in a cold climate, your boiler should have at least 50-60 BTUs output per square foot

– If your house has a lot of windows and doors and the weather is often cold 60 BTUs may be more appropriate

– Poor insulation in the walls and in the roof will call for a higher BTU output. If your house is poorly insulated consider making this remodeling update first, before investing into a more powerful boiler

– If your house is in the shade (there are a lot of trees around) you will need a higher output to heat your home, compared to a house that is fully exposed to the sun

– If you live in a warm climate, 30-35 BTU’s may be sufficient for your boiler.

– An older house will require a more powerful boiler than a new construction home.

To get an accurate estimate, you can also use our HVAC Load Calculator

Cost of switching from a gas to an oil boiler

Because a gas boiler is significantly more efficient than an oil-fired boiler, many homeowners consider changing one for another.

If you want to switch from an oil to a gas boiler, you should budget at least $2,000 extra for this replacement. However, often times labor charges are even higher, especially if environmental clean up is involved.

However, you have to keep in mind that there may be a number of additional hidden costs involved:

When replacing an oil boiler, you need to test the tank for any potential leaks, as these present an environmental hazard. The test alone is around $500-650. Moreover, the soil around the tank also needed to be tested, and this costs $300-500.

If the oil tank is located above the ground, it will cost $1,200-2,000 to remove it. However, if its located below the ground, removal fees can be as high as $3,000.

In case there is minor soil contamination from an oil spill, cleaning it up typically costs $3,000-4,5000. However, if its a bigger job, the price can be as much as $10,000.

If there is major ground contamination, environmental clean up will cost, tens of thousands of dollars. Its not uncommon for homeowners to spend up to $90,000-1000,000 to clean up a major oil spill.

Also, remember than when you change from oil to a gas boiler, you will need to install new gas hook up and meter. This costs $1,000-1,700 and is done by your local gas company.

Hooking up the gas line between the meter and your home will add another $500-1,100 to the total install cost.

While making the change from oil to gas may seem like a very expensive upgrade, there are a few things to keep in mind:

– gas boiler equipment is significantly cheaper than oil boilers. For quality devices the price difference can be as much as $4,000

– the price of gas is significantly cheaper than the price of oil as a source of heat. While oil is currently inexpensive, its price can fluctuate drastically, and can go up when you least expect it.

– by installing a gas boiler you avoid the chance of an oil boiler rusting and creating a spill, which is very costly yo clean up.

– if something breaks, an oil boiler is more expensive to repair than a gas one. The price difference can be $250-500

Best gas boiler options



Forced Hot Water Boiler Costs
Gas Boiler
$3900 - $5600
Oil Boiler
$4800 - $6700
Base Boards
$2100 - $3500

See costs in your area Start Here - Enter Your Zip Code



Here are the top gas powered boilers that HVAC specialists recommend to homeowners.

1. Elite FT Heating Boiler: high efficiency, wall-mounted gas boiler with a rating of up to 97% AFUE. It is available in 6 models of various sizes, ranging from 55,000 to 399,000 BTUs. Features a features a stainless steel fire tube heat exchanger that provides optimal heat transfer. For the past 3 years, Energy Star has rated Elite FT as the most efficient boiler. $3,000-5,200

3. Lennox GWM-IE Boiler: gas modulating condensing water boiler that can be wall-mounted. Offers a high efficiency rating of 95% AFUE. This unit has an electronic ignition control that monitors water temperature. It automatically turns the burner on, when necessary. Also features a corrosion resistant stainless steel mesh burner. Note, if you are interested in this boiler, you need to find a local dealer through the Lennox website, as these units are not available through third-party sellers. $3,000-4,500.

3. Bosch Greenstar: a gas condensing boiler with an efficiency rating of 96.1% AFUE and helps reduce nitrous oxide emissions. Can be installed as a heat only or combination boiler. It is available as a floor or wall-mounted device. $2,400-3,000

4. Westinghouse Combi Boiler: a modulating condensing gas boiler that has a built-in water heating option. The wall-mounted unit offers efficiency of up to 95% AFUE, while the floor-mounted unit, offers efficiency of up to 93.2% AFUE. Features a ceramic fiber burner, with high combustion efficiency and low NOx emissions. $2,100 – 2,300

5. Slant-Fin Sentry Boiler: gas boiler with an efficiency rating of 84.4% AFUE. It is available in 5 sizes, with input ranging from 34-150 MBH. Offers cutting edge thermal targeting technology that monitors heat demand, saving you money on fuel. $1,500-1,800

Top oil boiler brands

Here are the best oil boilers that HVAC pros trust.

1. Firebird Condensing Oil Boiler – FB P90 HYDRO: a unique unit because it is one of the few truly condensing boilers on the market. It features extra heavy insulation, delivers 95,000 Btu’s and efficiency of 91.5% AFUE. Such a high rating is comparable to that of a wall-mounted, high efficiency gas boiler. $3,300

2. Burnham PV8H4WT-TBWF Water/Steam Oil Fired Boiler: this none-condensing boiler features a sectional cast iron design, multiple oil burner options and an intelligent control system. It offers 85.3% AFUE efficiency and 141,000 BTU output. $3,700

3. Buderus G125BE/21 Logano 63 MBH: this a top of the line, condensing model, that offers 90.7% efficiency and an output of 63,000 BTU. This boiler features an innovative design burner that burns at a lower temperature and recirculates combustion gases. The result, is a more complete burn with very low nitrogen oxide emissions, and almost no soot.

4. Slant-Fin Steam Oil-Fired Boiler TR-30-PZ: a none-condensing boiler that features cast iron construction, 84.15% AFUE efficiency rating and 101,000 BTU output. This unit features more BTU’s per section than ordinary boilers. $2,300

5. Weil-McLain P-SGO-3 Steam Oil Boiler: this is a none-condensing boiler that offers 83.8% AFUE, and 85,000 BTU output. Simple cast iron construction and readily accessible panel, make this unit easy and fast to service. $2,100.

Benefits of a boiler vs furnace

The greatest advantage of a boiler system for heating is how efficient, simple and versatile it is.

Usually, a boiler ( gas or oil) is used to heat the liquid, and then its distributed through the system of pipes into either underfloor, wall or baseboard radiators.

Cooled water is returned back into the boiler, is heated and recirculated again. A pump constantly circulates the water from the boiler to the pipes and back.

The reason why a boiler is more effective than a furnace is because liquid is a superior conductor of heat, compared to air. In fact, air is actually considered to be a very poor conductor of heat.

Air’s thermal conductivity is 0.024 watts per meter kelvin. By comparison, water’s conductivity is 0.58 watts per meter kelvin. This means that water can absorb and transfer the heat that is produced much better than air, so you will be loosing a lot less heat, and spending less your energy bills.

Can a boiler system cool a house?



Forced Hot Air Furnace Costs (1800 sq. ft. home)
Central AC
$3600 - $4500
Hot Air Furnace
$4500 - $5900
Central Air + Ducts
$11900 - $16100

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It turns out that modern boiler heating systems are designed to also be used for cooling. They work the same as when heat is needed, except cold water is used as the transfer medium. There are some systems that only do heating, so if you need air conditioning as well, make sure that you are installing the appropriate system.

Interestingly enough, many homeowners have no idea that a boiler system can cool their home, and do it in a more efficient way than a forced air system. This is because the majority of people install a boiler for its heating advantages, because other systems don’t provide nearly the same level of comfort and efficiency.

Is boiler heating more efficient than forced air?

If you are looking to improve the energy efficiency inside your home and to lower your monthly heating costs, a hydronic heating system offers the greatest advantage.

The US Department of Energy recommends radiant hydronic heat over other conventional systems for a number of reasons:

– more efficient than baseboard heating, as well as forced hot air heating
– there is no energy loss through air ducts
– can operate on a variety of energy sources
– create a uniform distribution of heat across the floor, which is a lot more comfortable
– offers the greatest efficiency in homes that have smaller size rooms and lower ceilings
– using an Energy Star rated programmable thermostat to control the system can help you save hundreds of dollars a year.
– there are no dust particles, so you have a dust free, allergen free home environment.

Average Costs For:
Most Homeowners Spent Between: Most People Spent: $6,960 - $10,370
Low End
$6,250
Average
$7,780
High End
$12,120

See costs in your area Start Here - Enter Your Zip Code


About Yelena G

Yelena G. has been working in the remodeling and construction industry for over 15 years. Her focus is on construction planning and design as well as project cost estimating. Yelena also has a personal interest in interior design, as well as in unique DIY remodeling projects. Read more about Yelena

Leave a Reply to Derek McDoogle Cancel reply


2 thoughts on “Boiler Replacement Cost for 2020

  1. Derek McDoogle

    I totally agree with you when you said that the greatest advantage of a boiler system for heating is how efficient, simple and versatile it is. My neighbor told me that for some reason when he and his family take a shower, it takes a long time to get hot water. I will recommend him to check the prices of installing a boiler so that he and his family can get warm water in this cold season.

    Reply