The CP number for your boiler will be printed on a small rectangular barcode sticker on either side of the boiler jacket. For some models such as the ULTRA, the CP number may be inside the boiler jacket near the heat exchanger. If you know your boiler model but do not know where to find your CP on your boiler, use our CP Location Reference Guide to verify location of the CP number by model.
General Product Information
Your local heating professional should perform a heat-loss estimate based upon the size and construction of your home before recommending a boiler size and model.
Weil-McLain does not sell direct to consumers. Our products are sold exclusively through our wholesale distributors to contractors. If you are a heating contractor, contact your local wholesale distributor for pricing and availability. For distributors near you, use our Distributor Locator. If you are a homeowner, facility manager or building owner, contact licensed professional heating contractors for price quotes. Use our Contractor Locator.
MEA applications received after July 1, 2008 are no longer accepted. Application and other submission requirements are being returned and will not be processed under the previous MEA administrative provisions.
The functions of the MEA division have been absorbed by the Office of Technical Certification and Research (OTCR). Refer to the OTCR webpage for information regarding policies and procedures for recognizing materials and equipment under the new administrative provisions. https://www.nyc.gov/site/buildings/codes/technical-certification-research.page
This number is used to identify parts for your boiler, track service history, and aid in the registration and warranty claim processes. Your heating professional should have this number handy prior to any troubleshooting with Weil-McLain Technical Support.
Problems & Troubleshooting
Weil-McLain® relies solely upon independent heating professionals in your area to install, maintain and troubleshoot Weil-McLain products. We do not employ heating technicians who come out to repair your boiler, nor do we have factory-authorized servicers. Please contact a heating professional in your area. If needed, your heating contractor can contact our area office or our technical service department for assistance with trouble-shooting problems.
Please feel free to use our Parts Selector Tool. You will need to know the model, size, and series of your boiler for most accurate results. For your safety and product longevity, Weil-McLain highly recommends using a heating professional to change any parts or perform any kind of maintenance service.
Please contact your local heating professional to troubleshoot your system. Your heating professional can contact a Weil-McLain distributor or our technical service department for additional assistance.
Weil-McLain® does not employ heating technicians who come out to repair your boiler, nor do we have factory-authorized servicers. We rely upon independent heating professionals in your area to install, maintain and troubleshoot Weil-McLain products. Please contact a heating professional in your area. If needed, your heating contractor can contact our area office or our technical service department for assistance with trouble-shooting problems.
If you are a homeowner who installed your own boiler and are not a professional heating contractor, you must contact the distributor/dealer who sold you the boiler for technical support and warranty action.
Certain types of anti-freeze can be used with Weil-McLain® boilers. We recommend your hired heating professional use an anti-freeze designed for hydronic systems and formulated with inhibited propylene glycol, a non-toxic antifreeze. Do not use automotive antifreeze.
The average setting for a forced hot water system is 180°F (lower for in-floor heating). It can be raised as high as 210°F if needed in severe weather. For systems that use coils to heat domestic hot water, the high limit setting is 210°F and the low limit setting 140°F. A differential setting of 15°F is recommended for the optimum amount of domestic hot water.
Your installer or professional heating contractor must contact the Warranty Center at 1-800-654-2109, Option 4 to initiate the warranty claim and provide the following information:
CONTRACTOR INFO: company name, business address, contractor technician name, business phone number and technician’s email address
BOILER/TANK INFO: CP number (WM serial number), model, size, install date, failure date, failure reason, failed part description and failed part number, steam or water boiler and fuel type
JOB SITE: Name of homeowner or business owner, address where boiler or tank is installed, homeowner or business owner’s phone number, homeowner or business owner’s email address
PHOTOS: Photos of the failure location on the boiler or tank
WEIL-MCLAIN DISTRIBUTOR: Name and City/State of Distributor where contractor will pick up replacement part(s)
Upon warranty approval, contractors will go directly to their local Weil-McLain Distributor to obtain a replacement part. The defective item(s) should be returned to the same wholesale distributor where the replacement was picked up. Credits for warranties are processed through the wholesale distributor; Weil-McLain does not reimburse consumers directly.
If your boiler is leaking, contact your installer or a professional heating contractor of your choice or use our Contractor Locator for a list of contractors in your area. If the boiler is leaking and the component part is under warranty, a heating professional may submit a warranty claim on your behalf.