By reading the following DIY project you consent to the terms in the DIY disclaimer.

How to Determine the Age of a Weil-McLain Boiler

When evaluating the boiler at your home, knowing its age is helpful. That information can help you know if repairs would be worthwhile or if a replacement is the most economical option. Learning how to determine the age of a Weil-McLain boiler relies on locating its serial number.

Tools You’ll NeedHow to Determine the Age of a Weil-McLain Boiler

  • Flashlight
  • Screwdriver
  • Smartphone camera

How to Determine the Age of a Weil-McLain Boiler Directions

  1. Grab your tools and go to the boiler.
  2. Look on the exterior of the boiler for a white or silver sticker or data plate. If the area is dark, a flashlight will be helpful.
  3. If you do not see a sticker on the outside, pull off the boiler’s face plate.
  4. You may need a screwdriver to open the face plate that is usually near the bottom.
  5. A sticker should be visible on the inside.
  6. The sticker or data plate that you encounter could be in one of three formats.
    • The first format will have a bar code and alphanumeric serial number. It might say “installer copy.”
    • The second format just has a bar code and alphanumeric serial number.
    • The third format will include the company name Weil-McLain and the alphanumeric serial number.
  7. Regardless of the format that you see, the serial number should be easy to spot.
  8. Take a picture of the data plate sticker.
  9. Using the form below upload the picture that you took of the serial number. A boiler technician from Oliver will investigate the serial number and follow up with you about its age.

Curious How Old Your Equipment Is?

Send Us a Photo and We’ll Tell You!

Find Out Now

Signs of Boiler System Problems

Weil-McLain provides a 12-year warranty on the heat exchangers of residential boilers. Overall, these boilers are built to last 15 years. With consistent maintenance over the years, they are known to perform even longer than that. Aside from age, some other issues can arise that indicate that you need boiler service. If you live in the Delaware Valley or at the Jersey Shore, give the HVAC experts at Oliver a call at 1-888-810-2681. We can repair or replace your boiler quickly and affordably. While looking for the serial number, watch out for:

1. Flame discoloration or black soot

On a natural gas boiler, a yellowish flame is a warning sign that the fuel is not combusting properly. If you have an oil boiler, then black soot indicates the same problem. This is a dangerous problem that requires immediate attention due to the risk of carbon monoxide posioning.

2. Moisture or corrosion

Wet areas or corrosion at pipe or valve joints means that the boiler has developed leaks. If ignored, the system could burst and cause significant water damage.

3. Rising energy bills

A boiler in need of maintenance will gradually become inefficient. If cold weather or fuel price changes can’t account for your ballooning utility bill, then the boiler is probably to blame.

Professional Weil-McLain Boiler Repair and Replacement Services

Oliver has been in the business of keeping homes in Pennsylvania, New Jersey, and Delaware comfortable since 1971. We are trained to diagnose and repair all types of boilers, including Weil-McLain boilers. In some cases, you will benefit from replacing a very old boiler. Oliver can install a new Weil-McLain boiler that will produce heat efficiently, restore comfort, and get your utility bills under control. Contact us for boiler repair or installation services today.

Need help with this project?

If you do not have the time, tools, or experience necessary to complete the project, please contact the professionals at Oliver for help.

Contact us today at 1-888-810-2681 Get a Free Estimate
Schedule Online

"*" indicates required fields


This field is for validation purposes and should be left unchanged.

Schedule Online