How Much Does a Gas Boiler Cost?
A gas boiler is known to be environmentally friendly and very efficient at heating a home. These boilers will work by cycling cold water through a series of heated pipe before distributing it through the home.
How much are typical gas boiler prices?
- On average, be prepared to spend anywhere from $3,000 to $11,100 to have a new gas boiler installed in your home. The prices will depend on the AFUE rating, features, brand and who you purchase it from. High-effciency boilers with an AFUE boiler higher than 90 can in the $6,000 to $11,000 range.
- If you want to install a gas boiler but don’t have the setup, the costs can be much more since you will have to replace the ductwork, and if you’re converting it from an older oil tank, the project will require more work since the tank will have to be dug up and disposed of.
- The prices noted below will be for the boiler only. Since every job is going to be so unique, we recommend you get quotes emailed to you for free by using HomeAdvisor.com.
Factors that affect the price:
- The size of the home: The larger the home is, the more powerful the boiler will have to be, leading to higher costs.
- Insulation: Older homes are going to have less insulation compared to newer homes. Since poorly insulated homes will let in cooler air, the boiler will have to work harder. Because of this, professionals may recommend you upgrade to a powerful unit.
- Windows: Like the insulation, the number of windows can influence the boiler price. Why? The more windows you have, the more likely cooler air will shift in during the cooler months. If a home gets a lot of natural sunlight, this can naturally heat a home.
- Efficiency: The higher the energy efficiency is, the more you will have to likely pay.
What is going to be included?
- There are three types of boilers on the market: combination, system and standard. A combination boiler, often referred to as a Combi, will often be found in smaller apartments and homes. This type of boiler won’t include a storage tank since it receives the water from the water main. A system boiler will store and maintain water in a cylinder, and the water will be heated here before it goes to the taps. This boiler can work simultaneously with multiple taps and ideal for those who live in an average-sized home since it can keep the water pressurized. This boiler is able to deliver water quick, but it won’t be instantaneous, so you will have to wait. Lastly, a standard boiler will heat water rapidly in the pipes and will send the water out as necessary. These boilers will be found in larger homes and are popularly used to heat the flooring of homes.
- There are two efficiency styles: standard or high-efficiency. A standard model will have an AFUE rating of 80 to 85, while a high-efficiency model will have a rating higher than 90. As talked in depth below, this number will show you how much energy is being converted into heat.
- Newer boilers are made from a corrosion resistant material and are designed to last more than 25 years.
- As for installation, the job can take up to two days, depending on the location of the boiler. A boiler in the attic or basement can take longer on average.
What are the extra costs?
- If you don’t have a gas line going to your house, it can cost $1,000 to $2,000+ to dig a trench and run a line if gas is available in your area. Another $1,000 or so will be required to hook up the lines to a meter at your home.
- Your chimney will more than likely need a liner to commodate the exhaust from the boiler. These liners can cost $700 to $2,000.
- Replacing an oil-fired boiler can be more expensive since the tank will need to be replaced. This will involve testing the tank for leaks and the soil for any sort of contamination. If the soil is contaminated, then environment cleanup could be in the $2,000 to $11,000 range, depending on the severity of the issue.
- If an older boiler has to be removed and disposed of, a disposal fee can apply. This will greatly depend on the size and complexity of the job. Plan on budgeting at least $400 for this additional expense. If it’s located in the basement, it could cost $500 to $1,200, but if it were buried underground, it could cost more than $1,500.
- Some counties and cities require that you get permits for doing such a job. Be sure to consult with your local city to see what they can do for you. Permits can cost anywhere from $50 to $300. For example, replacing an oil tank often requires permits from your local fire department.
- Ductwork that may need to be replaced can cost $30 to $55 per linear foot. This is recommended if the ductwork is leaking or it needs to be part of the installation.
- Instead of using calculations online, if you really want to know how big your boiler should be, a professional inspector can come out for about $100 to determine the appropriate size.
Tips to know
- A yearly inspection is highly recommended to make sure everything is in tip-top shape. During the process, contractors will check areas, such as the heat exchanger, to see if any leaks are present.
- Every boiler will come with a rating known as AFUE, which stands for the annual fuel utilization efficiency rating. The higher this rating is, the more efficient the boiler is going to be. Most models that tend to be energy efficient will have a number higher than 90. Basically, this number will tell you exactly how much energy is being converted into usable heat.
- To know what size boiler you need, there’s a simple calculation you can perform. First, you will want to know your home’s square footage. With this number, multiply it by 30 if you live in a warm climate or 55 if you live in a warmer climate. This result will tell you what size boiler you will need to get. So for example, if you had a 2,000 square foot home and lived in a cooler climate, your number would be 60,000, so you would need a 60,000BTU. Older homes may want to upgrade by 5,000 to 15,000 BTUs. This calculation won’t take your windows, insulation, how many people you have in the home and other related variables into effect.
- When replacing a boiler, not the gas line coming out of your existing boiler. It will be essential that you purchase a new one that fits this new line.
- According to an answer on Angie’s List, the higher efficiency systems will have more switches, sensors, fans and electronics, which can mean their failure can be higher because more items can go bad. These repairs can sometimes cost upwards of $500 when compared to a standard boiler repair of $200 or so.
- When getting quotes from a professional contractor, always make sure they are licensed and insured. The ACCA can also help you find a reputable contractor in your area.
- Gas boilers will be more energy efficient since they use less gas to heat your home. This can help you save in monthly bills.
- The heat will be consistent since the temperature remains steady.
- Compared to a furnace, a boiler will be quieter since no air will be blowing around.
- It’s low in maintenance since there are no filters involved.
- The air quality can be better since it won’t spread dust and allergens through the home.
- A boiler can be slower to heat a home since it can take longer to adjust to a thermostat.
- Compared to a furnace, a boiler can be difficult to install since it could take days depending on the location.
- Converting a boiler can be hard as well since the ductwork can become a costly task.
- Leaks can pose a hazard to your family if one were to exist. These leaks can ruin walls, ceilings and floors.
How can I save money?
- If you have a boiler that is older than 25 years old, it’s safe to say that the boiler is only being 50 to 60 percent efficient. If this is the case, you may want to consider upgrading today. Newer models will be more efficient and can help save on your gas bills.
- People often question if it makes sense to either repair or replaced. If your boiler is younger than 15 years old, the most common repairs can cost $300 to $600. Common repairs involve fixing the heat exchanger, burners or the chimney lines. As your boiler ages, the water inside can often corrode these parts, leading to a simple replace. Compared to a replacement, which can often cost $7,000 to $8,000, the savings can be quite large.
- Upgrading your older boiler to a high-efficiency one may come with financial rebates or tax incentives from your local government. The rebates will vary from state to state, but the average, if one is available, can be up to $2,000.