Key Takeaways
Standard-Efficiency Boiler Cost	$2,200 – $7,000
High-Efficiency Boiler Cost	$4,000 – $10,000
Average Installation Cost Range	$3,200 to $9,000
Factors Affecting Costs	House Size, Boiler Efficiency, Installation Complexity

$2,200 – $7,000 Standard-Efficiency Boiler Cost

Standard-efficiency gas boilers typically range between $2,200 and $7,000, catering to various residential needs. These boilers offer an AFUE (Annual Fuel Utilization Efficiency) rating of 80% to 89%.

$4,000 – $10,000 High-Efficiency Boiler Cost

High-efficiency boilers, which have an AFUE rating of 90% to 95% or more, do come at a higher price point, ranging from $4,000 to $10,000. These boilers are designed to save energy and reduce monthly utility bills in the long run.

Gas Boiler Prices

House size and total replacement cost determine the budget range for a gas boiler. Below is a table featuring cost estimates based on house size.

House Size (Sq. Ft)	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

Average Cost To Install A Gas Boiler

Understanding the average costs involved in gas boiler installation helps homeowners make informed decisions. Here’s a summary of typical expenses:

Metric	Cost
National Average Cost	$6,500
Minimum Cost	$2,200
Maximum Cost	$12,000
Average Cost Range	$3,200 to $9,000

High-Efficiency Gas Boiler Prices

High-efficiency boilers provide significant long-term savings despite their higher upfront cost. Here are the costs:

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

Gas Combi Boiler Installation Cost

Gas combi boilers provide both heating and hot water in a single unit. Their installation typically ranges from $4,000 to $10,000 depending on various factors including the home’s heating requirements.

Natural Gas Boiler Prices By Size And Type

The size and type of natural gas boilers significantly affect their prices. Natural gas boiler installation costs by BTU output are listed below:

BTU Output	Unit Cost	Total Installation Cost
60,000	$1,200 – $2,100	$2,200 – $5,600
80,000	$1,400 – $2,300	$2,400 – $5,800
90,000	$1,500 – $2,600	$2,500 – $6,100
110,000	$1,900 – $2,800	$2,900 – $6,300
120,000	$2,000 – $3,300	$3,000 – $6,800
150,000	$2,200 – $3,800	$3,200 – $7,300
180,000	$3,000 – $4,200	$4,000 – $7,700
200,000	$4,500 – $6,000	$5,500 – $9,500

What Size Gas Boiler Do I Need?

Determining the appropriate boiler size depends on the home’s size and climate zone. Here are the approximate requirements:

Climate/Region	BTUs Per Square Foot
Hot Climate / Southern U.S.	20 – 40
Moderate Climate / Central U.S.	40 – 50
Coldest Climate / Northern U.S.	50 – 60

Gas-Fired Water vs. Steam Boiler Prices

Water and steam boilers use different heating methods, influencing unit prices. Here’s a comparison:

Boiler Heating Point Types	Unit Prices*
Hot-water / Hydronic	$1,700 – $4,500
Steam	$2,000 – $6,000

Floor-Standing vs. Wall-Mounted Gas Boiler Cost

The installation cost also varies depending on whether the gas boiler is wall-mounted or floor-standing:

Boiler Install Location	Unit Prices*
Wall-mounted	$2,000 – $5,000
Floor-standing	$1,200 – $6,000

Residential Gas Boiler Prices By Brand

The brand of the gas boiler can influence the price significantly. Here are some popular brands and their price ranges:

Brand	Price Range
Buderus	$2,600 – $5,000
Carrier	$2,200 – $5,800
Lennox	$1,700 – $6,500
LAARS	$1,200 – $6,200
Navien	$2,000 – $4,200
New Yorker	$1,700 – $3,300
Slant-Fin	$1,700 – $5,300
Peerless	$2,000 – $6,000
Triangle Tube	$2,000 – $5,400
Utica	$1,200 – $5,400
Weil-McLain	$1,700 – $6,000
Westinghouse	$2,500 – $2,800

Gas Boiler Replacement Cost Factors

Several factors impact gas boiler replacement costs, including labor and running costs.

Labor Cost To Fit A Boiler

Labor costs can range from $500 to $1,500 depending on the complexity of the installation and whether additional work is required.

Gas Boiler Running Costs

Running costs for a gas boiler depend on usage and efficiency. Here’s an overview:

Time Frame	Average Cost To Run
Monthly	$65 – $165
Yearly	$800 – $2,000

Gas Boiler FAQs

What Is A Gas Boiler Heating System?

A gas boiler heating system involves burning natural gas to heat water which is then distributed via radiators or underfloor systems to heat a home. The system can also provide hot water for domestic use.

How Long Does It Take To Install A Gas Boiler?

Install Complexity	Time
Replacement with same boiler type	4 – 8 hours
New boiler installation	1 – 2 days
Moving boiler to a new location with new connections	1 – 2 days
Changing boiler type / fuel type	2 – 3 days

What Is The Lifespan Of A Gas Boiler?

A well-maintained gas boiler should last between 10 to 15 years, though some can last up to 20 years.

Can A Gas Boiler Be Fitted In A Bedroom?

Yes, a gas boiler can be fitted in a bedroom, but it must meet specific ventilation and safety regulations.

Will A Natural Gas Boiler Run On Propane?

A natural gas boiler can run on propane but requires a conversion kit to do so. This process should be performed by a qualified technician.

Can An Oil-Fired Boiler Be Converted To Natural Gas?

Yes, oil-fired boilers can often be converted to natural gas using a conversion kit. This should typically be done by a professional.

Does A Gas Boiler Use Electricity?

Yes, gas boilers use a small amount of electricity to power the controls, pumps, and fans required for operation.

Getting New Gas Boiler Quotes

Questions To Ask

When getting quotes for a new gas boiler, consider asking the following questions:

• What is the total installed price?
• Are there any additional fees?
• What is the efficiency rating of the boiler?
• Does the quote include removal of the old boiler?
• Are there any warranties or guarantees?

Understanding these key points will help ensure you get the most value from your investment in a new gas boiler.