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Boiler replacement is one of the most significant steps when planning a home heating upgrade. It is accompanied by several benefits such as improved warmth, better energy efficiency, and associated health benefits. When upgrading a boiler, most homeowners in Pennsylvania are overwhelmed by the prices. Having the right set of knowledge is essential to use the budget wisely and take the maximum benefit from it. We have compiled this guide to not just keep you aware of the latest price trends in the heating industry but also help you save a great deal on your HVAC upgrade.
Before diving into the average boiler replacement costs, let us first understand the key factors that directly contribute to the total price.
There are different types of boilers based on the fuel source. Some systems use natural gas, while others operate on oil, and some specific types consume biomass to generate heat. Nowadays, electric boilers are also being used actively. The prices vary depending on the fuel type of each boiler. Generally, natural gas boilers have the lowest initial purchase costs in many areas of Pennsylvania.
Energy efficiency is another important factor that directly contributes to the costs of a boiler. Efficiency is calculated via AFUE (Annual Fuel Utilization Efficiency) ratings. Most of the standard boilers have effiicney arround 80% while some high-quality boilers can have efficiency up to 90% or even more. The more efficient the boiler, the more raw energy it converts into output. The higher the efficiency of a boiler, the more it costs initially.
Similar to other HVAC appliances, the cost of a boiler increases directly with its size. Larger boilers have more heating capacity and are best suited for larger buildings such as commercial facilities. On the other hand, smaller boilers cost relatively less and are best for small buildings such as small homes in Allentown, Bethlehem, and Carbon County.
The prices for installation services vary greatly depending on multiple factors. The costs for commercial boiler installation in PA are generally higher because of increased complexity and a labor-intensive installation process. On the other hand, the residential boiler installation in PA costs less due to a relatively simple installation process.
Not all the time, boiler replacement is limited to setting up the unit only. In many cases, especially for the older systems, there is a need for many additional components and extra work. For example, many times valve repair or piping insulation is required, which definitely increases the total replacement costs.
Natural gas boilers are the most common type used in Pennsylvania. However, here are the average costs for boiler replacements (equipment + labor) for all primary fuel types.
|
Fuel Type |
Average Cost Range |
|
Natural Gas |
$6,000 – $10,500 |
|
Oil |
$4,500 – $12,000 |
|
Propane |
$2,800 – $7,500 |
|
Electric |
$1,800 – $8,000 |
|
Biomass |
$7,000 – $16,000 |
Note: This data is taken from multiple resources explaining home improvement costs in Pennsylvania. For exact values, contact your local contractors.
BTU (British Thermal Unit) is widely used for calculating a boiler’s efficiency. The home’s size in square footage is another important factor that directs total price variations. Here are the average boiler replacement costs with respect to these two aspects.
|
Home Size (Sq. Ft.) |
Recommended BTU/h Range |
Average Cost Range |
|
1,000 – 1,500 |
40,000 – 75,000 BTU/h |
$4,500 – $7,000 |
|
1,500 – 2,000 |
60,000 – 100,000 BTU/h |
$5,100 – $8,000 |
|
2,000 – 2,500 |
75,000 – 125,000 BTU/h |
$5,600 – $9,000 |
|
2,500 – 3,000+ |
90,000 – 150,000+ BTU/h |
$6,100 – $10,000+ |
Note: These price ranges are based on the actual boiler replacement cases carried out in Pennsylvania in 2025. The date is taken from reputable industry resources.
This table outlines the cost of the equipment only. We have included almost all the popular HVAC brands of Pennsylvania here. The total replacement costs will comprise labor, materials, and additional upgrade costs.
|
Boiler Brand |
Average Unit Price |
|
Burnham |
$1,500 – $7,800 |
|
Navien |
$2,000 – $5,000 |
|
Viessmann |
$1,200 – $8,000 |
|
Utica |
$1,200 – $7,400 |
|
Peerless |
$1,200 – $6,000 |
|
Lennox |
$1,700 – $6,500 |
Note: This data is taken from various industry-focused sites and compiled for average ranges of various brands.
There are multiple additional tasks associated with the boiler replacement process. Each step takes some amount, which adds up to the total price for the heating upgrade. Here are the average costs for the main associated tasks in this regard.
|
Associated Task |
Estimated Cost Range |
|
Standard Installation Labor |
$2,000 – $5,000 |
|
Old Boiler Removal & Disposal |
$200 – $500 |
|
General Building Permit |
$50 – $300 |
|
PA Boiler Inspection Certificate |
$56 – $93 (Annual Fee) |
|
Install Condensation Drain |
$200 – $600 |
|
New Gas Line/Venting Modification |
$500 – $2,000+ |
Note: This data is specific to residential heating installation services in PA and has been assembled from official resources of well-reputed HVAC companies in Pennsylvania.
Our guide for boiler replacement costs would be incomplete if we did not mention the practical tips and tricks to reduce the cost burden. At Lehigh HVAC, we have been helping regional customers in Pennsylvania lower their costs for boiler replacements for 11 years. Here is what our professionals recommend to reduce the cost burden.
Compare Pricing: Get quotes from more than one company and choose the one that costs less, providing more.
Choose the Right BTU Size: Prefer the unit that is most compatible with your building. Oversized or undersized units cost more in terms of energy wastage or more frequent repairs.
Incentives and Tax Credits: Purchase the unit that is eligible for federal tax credits, incentives, and rebates.
Hire a Professional Company: Hand over your boiler installation job to a professional company to prevent any flaws and errors.
Schedule Regular Maintenance: Although it is a post-installation step, it is very important to provide you with maximum ROI from your investment.
If you are planning for a boiler upgrade in Pennsylvania, choose the right unit according to your comfort needs and align it with your budget. Keep in mind the size and symmetry of your house and pick the boiler with accurate BTU requirements. Additionally, make sure the fuel source is easily accessible to you according to your system's needs.
If at any stage you feel puzzled, Lehigh HVAC is here to help. We can help you choose, install, and maintain your new boiler at your residential or commercial space. Contact us at 484-961-7044 to learn more or book a service.
