If your boiler has started to make strange noises or you&#;ve seen a recent spike in your energy bills, it may be time to replace this critical heating component in your home. But how much does a new boiler cost?
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Our cost guide will break down the costs of demolition, equipment, and labor for replacing different types of boiler units. We&#;ve collected data from RSMeans, a construction materials database used by top-rated HVAC contractors across the United States, to provide the most accurate cost of boiler replacement information.
HVAC Installation
In general, you can expect to pay between $5,540 to $10,980 per HVAC unit, installation costs, and removal of your old unit.
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Furnace Replacement
In general, you can expect to pay between $4,000 and $7,000, including installation, old furnace removal, and labor.
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Heat Pump Installation
In general, you can expect to pay between $3,000 and $35,000, but most homeowners spend between $5,800 and $7,500.
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How Much Does It Cost to Replace Your Boiler?
On average, new boilers cost $6,490, but you can expect to pay between $5,300 and $9,500 depending on the type of boiler you choose, its size, and its efficiency.
These costs are for the boiler itself and don&#;t include labor costs of $935 to $2,110 and demolition costs of $820 to $2,650. If your boiler replacement project is complicated or you have a large boiler to dispose of, the total boiler replacement cost can exceed $12,000.
Low Boiler CostAverage Boiler CostHigh Boiler Cost$5,300$6,490$9,500Cost data include the unit, labor, and demolition, if applicable. All cost data in this article were gathered from RS Means construction materials and labor database and bids from top contractors.
How Do Costs Differ By Boiler Fuel Type?
The type of boiler you install is a major factor in its total cost. As shown below, residential oil-fueled boilers cost between $5,300 and $10,180 for the unit, old boiler removal, disposal costs, and labor. Natural gas-fueled boilers cost $6,935 to $9,435. If you want an electric boiler, you may pay between $8,175 and $12,760. Steam boiler costs range from $34,00 to $9,500.
Fuel SourceLow CostHigh CostWood$3,000$10,000
Oil$5,300$10,180
Gas/Propane$6,935$9,435
Electric$8,175$12,760
Electric Boiler
The price range for electric boiler replacement is between $8,175 and $12,760 for the boiler and installation. Electric boilers are the most energy-efficient type available. Unlike other boilers that lose heat during energy conversion, electric boilers convert 100% of the fuel source into usable energy for your home. But because electricity is more expensive than natural gas and electric boilers are slow to heat, they may not be the best option for large homes requiring significant heating capacity.
Gas or Propane Boiler
As the least expensive type to run, gas boilers are a popular option. These boilers cost between $6,935 and $9,435 but will likely reduce your energy bills. As with oil boilers, gas boiler systems rely on the combustion of carbon-based fuel in the presence of oxygen to produce steam that provides the heat.
Oil Boiler
The national average cost for an oil boiler is between $5,300 and $10,180. An oil boiler heats your home by using oil to heat water. These boilers can be a great option for homes in rural areas because they don&#;t require access to a main power grid or gas supply.
Wood Boiler
If you live in a heavily wooded area and have access to significant amounts of timber, then a wood boiler may be your best choice. As the name suggests, wood boilers heat water by burning wood and can be cost-effective if you can rely on free wood to heat your home. These boilers can cost $3,000 to $10,000 on average.
How Does Boiler Size Affect Boiler Replacement Pricing?
The larger the boiler, the more expensive it is, and larger houses require larger boilers because there is more space to heat. Your boiler must be able to regulate the temperature in several rooms and zones.
To estimate the size of the boiler you need, multiply your square footage by the appropriate number of BTUs (British thermal units), depending on your location:
- 20 BTU to 30 BTU: Hot climates (Florida, Texas, and other Gulf Coast states)
- 25 BTU to 35 BTU: Warm climates (California and Southeast states)
- 30 BTU to 45 BTU: Moderate climates (Lower Midwest and Mid-Atlantic states)
- 45 BTU to 55 BTU: Cold climates (Mountain regions)
- 50 BTU to 60 BTU: Freezing climates (Upper Midwest and Northeast)
Whereas larger boilers that can heat 3,000 square feet (sq. ft.) or more can start at $9,500 per unit, smaller boilers for homes that are 1,500 sq. ft. or less might cost $3,405 per unit or less, as shown below.
Boiler SizeHome SizeAverage Costs20,000 to 60,000 BTU1,000 sq. ft.$3,400 &#; $6,,000 to 90,000 BTU1,500 sq. ft.$3,405 &#; $6,,000 to 120,000 BTU2,000 sq. ft.$4,675 &#; $7,,000 to 150,000 BTU2,500 sq. ft.$5,100 &#; $7,,000 to 180,000 BTU3,000 sq. ft.$6,000 &#; $9,500
If you live in a newer, well-insulated, energy-efficient home, you may get by with a smaller boiler. However, if you live in an older home without energy-efficient windows and good wall insulation, you may have to buy a more-expensive larger boiler.
Which Factors Impact Boiler Replacement Cost Estimates?
The boiler prices cited above reflect national averages, but in some cases, costs may be significantly higher. Certain factors can drive up the cost of your boiler, but upgrades may be worthwhile. Boiler installation costs are most impacted by the following:
Brand
As indicated in the table below, the brand of boiler you choose can impact your total cost. Some brands, like Bryant and Burnham, offer cheaper boiler models, whereas others, such as Lennox and Weil-McLain, are more expensive.
Boiler BrandAverage CostBryant$1,800 &#; $4,800Bosch$2,000 &#; $4,800Burnham$1,500 &#; $5,500Crown$2,000 &#; $4,800Lennox$2,000 &#; $7,000Navien$2,000 &#; $4,800Peerless$1,800 &#; $4,600Utica$2,000 &#; $6,000Viessman$1,500 &#; $7,500Weil-McLain$1,500 &#; $7,500Williamson$1,800 &#; $5,500
The cost difference between brands is also why you should get multiple quotes from local HVAC installers. Each has its own set of brand partners and may offer you better pricing if it carries a less expensive brand.
Condensing Vs. Non-condensing Boilers
Non-condensing boilers are a more traditional boiler type. They have a heat exchange chamber that uses gas or oil to heat the water. During this process, excess moisture and gasses are released through the flue, meaning energy is lost. These boilers are more affordable at $1,500 to $5,000 for the unit.
Condensing boilers have larger heat exchangers that cool the exhaust gasses before they can escape, resulting in condensation. This allows the boiler to reuse the gas and heat your home more efficiently. Condensing boilers are more expensive at an average of $2,000 to $7,000 per unit, as shown below.
Condensing/Non-condensing BoilerAverage CostNon-condensing$1,500 &#; $5,000Condensing$2,000 &#; $7,000
Efficiency
Boiler efficiency is measured by an annual fuel utilization efficiency (AFUE) rating. This percentage tells us how much energy is converted into usable heat and how much is lost during the conversion process. Most new boilers will have an AFUE rating of 80% or higher, but high-efficiency models have AFUE ratings of 90% or more.
As shown below, standard boilers with between 80% and 89% AFUE cost between $5,300 and $9,500 for boiler installation, but you will pay more in energy bills each month. If you live in a moderate or warm climate, you can get by with these less efficient units because you&#;ll use your boiler less. But if you live in colder or freezing climates, it&#;s worth paying for the more efficient radiant heating systems with 90% AFUE or higher or getting an ENERGY STAR-certified boiler. These high-efficiency models typically cost between $6,000 and $12,760. Gas boilers that are ENERGY-STAR certified and have an AFUE of at least 95% qualify for the federal tax credit for HVAC equipment.
Efficiency RatingAverage CostStandard boiler (80% &#; 89% AFUE)$5,300 &#; $9,500High-Efficiency boiler (90%+ AFUE)$6,000 &#; $12,760
System Type
The boiler model and type play a significant role in the overall cost. Conventional or standard boilers are often more affordable than combination boilers and system boilers. Still, many homeowners opt for the latter two because they are better suited for larger homes and can be more energy efficient.
The best type of boiler for your home may depend on your existing boiler system, budget, and home size, so ask your HVAC technician if you are unsure which is best for you. Types of boilers that are often installed in residential homes include:
- Standard or conventional boiler: Standard boilers heat your home using either hot water or steam. Unlike other boilers, conventional boilers can&#;t provide potable water, so you must install a separate water heater. This does make conventional boilers more affordable at $2,500 to $6,500.
- System boiler: System boiler heat can be used for home heating and water heating. These boilers average $3,000 to $6,500 and have a storage tank for hot water reserves.
- Combination boiler: Combination boilers, commonly referred to as combi boilers, are both hot water heaters and heating systems. Unlike system boilers, combi boilers are tankless and only heat water when needed. This makes combi boilers the most energy-efficient but does make them more expensive at $3,000 to $7,000 for basic boiler models.
Average costs by boiler type are shown below.
Type of BoilerAverage CostStandard or conventional$2,500 &#; $6,500System boiler$3,000 &#; $6,500Combination boiler$3,000 &#; $7,000Steam boiler$2,500 &#; $9,000Hot water boiler$1,500 &#; $8,000
Additional Factors
The boiler and labor are only two components of the total cost of boiler installation. You may need to pay for old boiler removal, permits, new gas lines, and more when you replace your boiler. Here are some of the additional HVAC installation costs that can increase the cost of your boiler replacement project:
- Demolition: If you need to remove your old boiler, you can expect to pay an average of between $935 and $2,110.
- Ductwork: You may need to fix leaks in your ductwork or install new ductwork. Ductwork replacement costs between $15 and $40 per linear foot, so your replacement total will depend on how much needs to be replaced or installed.
- Emergency repairs and replacement: If your boiler breaks down unexpectedly, you may need to pay emergency boiler repair fees to have a technician come to your home as quickly as possible. These service call fees typically cost between $50 and $120.
- Gas lines: If you need to install new gas lines or switch from one fuel type to another, you may need to pay between $300 and $2,000, depending on the extent of the replacement. You may also need to hire plumbers to complete the installation.
- Residential hookup: Residential boiler hookup is often necessary for new installations and permits and can cost between $235 and $550.
- Permits: In some states, you must get a permit for your HVAC installation project and pass an inspection. These permits typically cost between $50 and $300.
- Updated thermostat: If you have an outdated thermostat and install a new one, you can expect to pay anywhere from $100 to $350.
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Professional vs. DIY Boiler Replacement
If you find that your boiler is not heating your home as well as it used to, if you hear rattling or booming noises, or if your energy bills are skyrocketing, it&#;s probably time to replace the boiler. However, this job is for professional HVAC technicians, not DIY dabblers.
Doing Boiler Replacement Yourself
Installing a boiler is a complex project that requires the combined expertise of HVAC technicians, plumbers and even electricians. These professionals will make sure your new boiler is the right size for your home, that it&#;s installed correctly so it can operate efficiently, and that it&#;s connected safely.
Today&#;s Homeowner Tips
In many states, you&#;ll need a license to install HVAC equipment and may have to pass an inspection before you can hook up and turn on your heating system. Working with a top HVAC installer can also help you take advantage of local rebates.
In many states, you&#;ll need a license to install HVAC equipment and may have to pass an inspection before you can hook up and turn on your heating system. Working with a top HVAC installer can also help you take advantage of local rebates.
Thinking about replacing your HVAC system and want to know what to expect? Check out the podcast segment below.
Hiring a Professional for Boiler Replacement
The best way to have your new boiler installed safely and correctly is to have it done by an HVAC professional. You can easily contact an HVAC installer by clicking the button below and following these simple steps:
- Find local experts near you: Use the button below to be connected with the best local HVAC contractors in your area.
- Get several quotes: Gather at least two quotes so you can compare prices and boiler models.
- Explore recommendations: Ask the HVAC technicians which model, efficiency rating, and boiler size they recommend so you can ensure you have the right system for your home.
- Choose a boiler: Compare the quotes you&#;ve gathered and choose the best one based on your home and budget.
- Set up your boiler replacement: Set up a time for your HVAC crew to come to your home and install your new boiler.
Final Thoughts About Boiler Replacement Cost
On average, it costs between $5,300 and $9,500 to replace a boiler, excluding labor and old boiler disposal costs. The actual cost will depend on the brand chosen, the unit&#;s efficiency, the type of system, and the other factors we&#;ve explored in this article. We don&#;t recommend replacing your boiler yourself because your system must be properly set up &#; so contact a local professional installer to get quotes and choose the best boiler for your home.
FAQs About Boiler Replacement Cost
Are boilers expensive to replace?
The average boiler replacement cost is between $5,300 and $9,500. This cost can exceed $10,000 once you consider labor costs, demolition, and other costs. If you need a larger, more energy-efficient boiler, a replacement can be expensive.
How much is a boiler for a sq ft house?
On average, you can expect to pay between $4,675 and $7,325 for a boiler large enough to heat a 2,000-square-foot home. This cost is just for the boiler itself &#; once you add on labor costs, demolition, and any other replacement costs, your boiler replacement project may exceed $10,000.
How often should a boiler be replaced?
The average lifespan of a boiler is 15 to 20 years. If you want to get the most out of your boiler, it&#;s best to have an HVAC professional perform annual HVAC maintenance.
Is it worth replacing an old boiler?
If your boiler is 15 years old or older, it&#;s worth replacing. If your boiler has reached the end of its life, it may not perform as well as it used to, resulting in higher monthly utility bills. Plus, replacing your boiler as a preventative measure will keep it from breaking down when you need it most.
Written by
Sarah Noel
September 5,
Fact-checked by
Tom Grupa
New boiler cost
Installing a new boiler costs $3,200 to $9,000 on average, depending on the system and fuel type, size, efficiency, brand, and labor. Residential boiler prices are $1,400 to $6,500 for the unit alone, plus $1,200 to $3,200 for replacement labor and fitting.
New boiler cost to install - chartNew boiler cost
House size (square foot)
Total replacement cost*
1,200 &#; 2,000
$2,200 &#; $5,700
2,000 &#; 2,800
$2,400 &#; $6,200
2,800 &#; 3,600
$3,000 &#; $7,100
3,600 &#; 4,000
$3,200 &#; $7,300
*Prices are based on a standard-efficiency boiler.
In comparison, a high-efficiency boiler costs $4,000 to $10,000 installed and saves 10% to 20% on energy bills.
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Average boiler installation cost
The following table shows the average cost to install a new boiler, including the unit and labor.
Boiler installation cost
National average cost
$6,100
Minimum cost
$1,500
Maximum cost
$12,000
Average cost range
$3,200 to $9,000
* Cost data is from research and project costs reported by HomeGuide members.
Alternatively, installing a new furnace costs $2,000 to $5,400.
Boiler installation labor and fitting cost
Boiler installation labor and fitting costs $1,200 to $3,200, depending on the system type, size, access, complexity, and HVAC connections. Plumbers charge $45 to $150 per hour to install a boiler.
Installing a boiler of the same size and model costs the least.
Upgrading to a larger or high-efficiency system, switching fuel types, connection or location changes, and system modifications cost the most.
Boiler replacement cost
Boiler replacement costs $2,200 to $7,000 for standard-efficiency models or $4,000 to $10,000 for high-efficiency models. Boiler replacement cost estimates include removing the old unit, wiring and plumbing connections, and sometimes a new hot water tank.
Boiler replacement cost - chartBoiler replacement costs
Factor
Average cost
Old boiler removal
$200 &#; $500
New boiler unit
$1,400 &#; $6,500
Installation labor and fitting
$1,200 &#; $3,200
Install condensation drain (high-efficiency models)
$200 &#; $600
Permits
$50 &#; $250
Propane tank installation*
$1,700 &#; $4,300
Oil tank replacement*
$1,000 &#; $6,200
Oil contamination soil test*
$600 &#; $2,100
Hot-water heater / storage tank with installation*
$1,200 &#; $4,000
Cost to fix leaking pipes*
$150 &#; $850
Water heater storage tank repair*
$150 &#; $700
Thermostat replacement cost*
$140 &#; $350
*Optional expenses depending on the job requirements.
A Manual J load calculation costs $200 to $500 to determine the boiler size needed.
Installing new plumbing pipes costs $450 to $1,800 for a new boiler connection.
Adding an HVAC zoning system costs $1,700 to $4,500 for room-by-room climate control.
Home radiators over 15 years old may also need to be replaced. Home radiators cost $250 to $500 each, depending on the size.
New boiler installation wall mounted
Boiler removal cost
Boiler removal costs $200 to $500 with disposal, depending on the fuel type, size, and accessibility. The removal cost increases for units that weigh more than 200 lbs. or are in areas with limited access.
Costs to change boiler type
The cost to change the boiler type depends on the current heating system setup and the connection and ventilation requirements. The following costs may apply:
A new natural gas line hookup to the house costs $0 to $2,000, depending on if the gas company provides free installs.
Gas line installation costs $12 to $25 per linear foot from the house to the boiler.
Chimney liner installation costs $1,500 to $4,000 to direct gas exhaust out of the flue.
Old fuel tank removal costs $400 to $3,400.
Installing a new oil tank costs $1,200 to $4,600.
Installing a natural gas to propane conversion kit costs $150 to $500.
Installing a new propane tank costs $1,700 to $4,300.
Boiler replacement vs. repair
Boiler repairs cost $200 to $600. Replace a boiler when the unit is older than 15 years. Old boilers malfunction more and have reduced energy efficiency. Replacing an outdated boiler is typically cheaper than multiple repairs.
Residential boiler prices by fuel type
Residential boiler prices are $1,400 to $6,500 for the unit alone, depending on the fuel type. Each fuel type has different operating costs to run. Changing to a new fuel source incurs additional costs.
Residential boiler prices by fuel type
Fuel type
Unit price
Total cost installed
Gas
$1,400 &#; $5,600
$4,000 &#; $9,000
Propane
$1,800 &#; $4,000
$2,800 &#; $7,500
Oil
$1,700 &#; $6,500
$3,300 &#; $9,000
Electric
$1,000 &#; $6,000
$1,800 &#; $8,000
Wood
$5,000 &#; $13,000
$7,000 &#; $16,000
Gas boiler cost
A gas boiler replacement costs $4,000 to $9,000. A new gas boiler costs $1,400 to $5,600 for the unit alone, depending on the size. Gas boilers are the most popular and need connections to a natural gas line, plumbing, vents, and a condensation drain.
Propane boiler cost
Replacing a propane boiler costs $2,800 to $7,500. Liquid propane boiler prices are $1,800 to $4,000 for the unit alone. Propane costs more than natural gas but burns more efficiently.
Converting a natural gas boiler to propane costs $150 to $500 on average.
Installing a new propane tank costs $1,200 to $4,500, while renting a tank costs $50 to $200 per year.
Oil boiler cost to replace
A standard-efficiency oil boiler costs $3,300 to $7,200 to replace, depending on the system type and size. Replacing a high-efficiency oil boiler costs $6,300 to $9,000.
Electric boiler prices
An electric boiler replacement costs $1,800 to $8,000. New electric boiler prices are $1,000 to $6,000 for the unit alone. Electric boilers convert 99% of the electricity into heat but have the highest running costs of all types.
Electric panel upgrades cost $1,400 to $2,800 to install high-powered boilers.
Best for climates with short moderate winters
Ideal for backup heating in colder climates
Does not require a chimney flue or additional vents
Outdoor wood boiler prices
The cost of an outdoor wood boiler is $7,000 to $16,000 installed, depending on the size and chimney flue type. Outdoor oil boiler prices are $5,000 to $13,000 for the unit alone.
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Outdoor wood boilers can dramatically reduce heating costs, and large systems can supply hot water to your home, garage, pool, or spa.
Home boiler replacement cost by system type
Home boiler replacement costs depend on the system type, efficiency, and heating needs:
Boiler heating system cost by type
System type
Unit price
Total replacement cost
Standard / conventional boiler
$1,200 &#; $5,000
$2,200 &#; $7,000
Combi-boiler
$1,700 &#; $3,500
$6,000 &#; $10,000
High-efficiency boiler
$1,900 &#; $7,000
$4,000 &#; $10,000
Conventional new boiler system cost
A conventional sealed-system boiler replacement costs $2,200 to $7,000 including labor or $1,200 to $5,000 for the unit alone. Standard boilers have an 80% to 89% energy efficiency rating.
Combi boiler installation cost
A combi boiler installation costs $6,000 to $10,000. A new combi boiler costs $1,700 to $3,500 for the unit alone. These small, wall-mounted units are ideal for apartments and small houses. A combination boiler provides tankless home heating and hot water on demand.
Combi boilers have more connections, piping, parts, and often wall-mounting with special vents, making them more complex and expensive to install.
High-efficiency boiler prices
A high-efficiency boiler costs $4,000 to $10,000 installed and saves 10% to 20% on energy bills. The Annual Fuel Utilization Efficiency (AFUE) rating is the percentage of fuel converted into heating. High-efficiency boilers have an AFUE of 90+.
High-efficiency boiler cost
Boiler type
AFUE rating
Unit prices
Total replacement cost
Standard efficiency
80% &#; 89%
$1,200 &#; $5,000
$2,200 &#; $7,000
High-efficiency
90% &#; 95%+
$1,900 &#; $7,000
$4,000 &#; $10,000
*Installation prices vary according to the vents, hot water tanks, and connections needed.
All boilers lose energy efficiency over time as the unit ages.
Many high-efficiency boilers are tankless systems, while others need an attached hot-water storage tank.
Steam vs. hot water boiler prices
A hot water boiler costs $1,200 to $4,000 for the unit alone, is more energy-efficient, and is easier to control.
Steam boiler prices are $1,800 to $6,000, produce higher temperatures, and are common in older homes and commercial settings.
Steam vs. hot water boiler prices
Boiler type
Average unit price*
Hot water
$1,200 &#; $4,000
Steam
$1,800 &#; $6,000
Condensing
$1,900 &#; $7,000
Non-condensing
$1,200 &#; $5,000
*Material prices only based on top-selling home boiler sizes.
Condensing vs. non-condensing hydronic boilers
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A new condensing boiler costs $1,900 to $7,000, while non-condensing boilers cost $1,200 to $5,000 for the unit alone. A condensing boiler reclaims exhaust fumes to reduce external heat loss through vents, which increases the boiler&#;s energy efficiency.
Condensing vs. non-condensing hydronic boilers
Condensing boiler
Non-condensing boiler
- Highest 90% to 99% efficiency
- Available in combination boiler/ water heater units
- Needs condensate pump drain
- Often requires an additional vent
- Stainless-steel heat exchanger costs more with a shorter lifespan
- Has extra secondary heat exchanger
- Harder to repair
- Uses outdoor air for combustion
- 80% to 89% efficiency
- All standard & older boiler models
- Vents through the chimney flue
- More durable parts with a longer lifespan
- Has one heat exchanger
- Easy to repair the simpler system
- Uses indoor air for combustion
New boiler cost estimate by brand
New boiler estimates also depend on the brand:
New boiler price comparison by brand
Brand
Boiler unit price*
Total installed cost*
Buderus
$1,700 &#; $4,400
$2,900 &#; $7,600
Bosch
$1,900 &#; $4,200
$3,100 &#; $7,400
Burnham
$1,700 &#; $5,500
$2,900 &#; $8,700
Crown
$1,800 &#; $5,000
$3,000 &#; $8,200
Lennox
$1,700 &#; $6,500
$2,900 &#; $9,700
Navien
$2,000 &#; $5,000
$3,200 &#; $8,200
Peerless
$2,000 &#; $6,000
$3,200 &#; $9,200
Utica
$1,200 &#; $7,400
$2,400 &#; $10,600
Westinghouse
$2,500 &#; $2,700
$3,700 &#; $5,900
*For residential boilers up to 200,000 BTU.
Boiler replacement FAQs
How much does a boiler cost to run per hour?
Running a gas boiler costs $1.00 to $1.40 per hour of usage, depending on the unit size, temperature settings, and local fuel prices.
Check the boiler&#;s manual and the U.S. Government Energy Guide label for model-specific data on fuel and energy usage.
What size boiler do I need?
Most homes need a boiler sized at 25 to 50 BTUs per square foot, depending on the building design, insulation efficiency, and heating needs.
Boiler size calculator by home size
Home square footage
BTUs needed
1,200 &#; 1,600
30,000 &#; 80,000
1,600 &#; 2,000
40,000 &#; 100,000
2,000 &#; 2,400
50,000 &#; 120,000
2,400 &#; 2,800
60,000 &#; 140,000
2,800 &#; 3,200
70,000 &#; 160,000
3,200 &#; 3,600
80,000 &#; 180,000
3,600 &#; 4,000
90,000 &#; 200,000
Furnace size calculator - heating climate zones
For exact sizing, technicians conduct a Manual J calculation that accounts for the type of walls, insulation, roofing, windows, climate, and more.
Can a plumber install a boiler?
A plumber can install a boiler if they have HVAC certifications. Plumber hourly rates are $45 to $150 per hour, plus parts.
What is the difference between a boiler, furnace, and a water heater?
The differences between a boiler, furnace, and a water heater are:
A boiler heats water for appliances & indoor heating. The steam or hot water circulates through pipes to radiators or radiant-floor systems.
A furnace heats air and blows it through central air ducts for indoor heating.
A water heater heats water for indoor appliances only.
A combi-boiler heats water on demand for appliances & indoor heating without a water-storage tank. Combi boilers circulate hot water through pipes like a standard boiler.
When should I replace my boiler?
Replace a boiler over 15 years old when these warning signs appear:
Unusual energy-bill spikes
Frequent boiler repairs
Uncommonly loud noises coming from the boiler
Black soot buildup on oil boilers
Carbon monoxide detector alerts or a yellow pilot flame
Abnormal smells in the boiler room
Leaky boiler pipes
Corrosion anywhere on the boiler or its connections
Water heating up slower than normal
How long does a boiler last?
A boiler lasts 10 to 20 years on average or up to 30+ years for some cast-iron boilers. The boiler lifespan depends on the materials, system type, usage, local water quality, and maintenance frequency.
Does a new boiler add to house value?
A new boiler typically does not add much to the total house value. However, replacing a boiler more than 20 years old in the Northeastern U.S. does make a home more appealing to buyers.
How does a boiler work?
A boiler heating system works by boiling water that goes through pipes to steam radiators, baseboard radiators, or radiant floor systems. Boilers are ideal for homes without central air ducts because boilers don&#;t produce heated air like a furnace.
Can you install a boiler yourself?
You cannot install a boiler yourself in most states without a contractor&#;s license and HVAC credentials. Building departments typically won&#;t issue permits for HVAC work to unlicensed people due to the safety risks involved. States allowing DIY installs still require boiler inspections.
Getting boiler replacement quotes
Before hiring a plumber or boiler installer near you, be sure to:
Choose HVAC professionals with certifications from:
North American Technician Excellence (NATE)
American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE)
Compare at least three quotes from experienced installers.
Select licensed, insured, and bonded HVAC contractors.
Avoid choosing the lowest quotes that signal low-quality work.
Read their reviews on HomeGuide and Google.
Request copies of estimates, plan diagrams, heating-load calculations, equipment orders, permits, warranties, and contracts.
Verify the bids include material, labor, and equipment costs, plus the installation schedule.
Set up a payment schedule. Never pay in full upfront.
Questions to ask boiler installers
Which boiler model do you recommend for my home, and why?
Would it be more cost-effective to convert to another fuel type for my new boiler?
How many new boiler installations have you done, and can I see your references list?
Will you size my boiler using a Manual J heat-load calculation?
Which kind of boiler and brands have you installed the most?
Does my boiler system need a new hot water storage tank too?
What&#;s the most energy-efficient boiler you offer?
Can you add zoning capabilities for room-by-room climate control?
Is this boiler compatible with my existing thermostat, or will I need new wiring?
Are there any local boiler manufacturer rebates for this boiler?
Will your quote include removal and disposal of the old unit?
Should I expect any additional incidental costs?
How long will the boiler replacement take?
Will you pull all the installation permits needed?
How can I extend the boiler&#;s lifespan?
What does the warranty cover, and how long is it valid?
Did lime-scale buildup make the old boiler fail, and if so, how can I prevent it?
Do you sell a maintenance plan for my new boiler, and how much is it?
What&#;s the payment timeline?
Will I need new vents for this boiler to comply with building codes?
If you want to learn more, please visit our website Wall Mounted Condensing Gas Boiler.
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