Oswald Supply is your number one boiler supplier. He have all of your boilers heating supplies needed for all industrial boiler manufacturers and residential boiler manufacturers found in the field. For the past 100 years, we have been the leading supplier of handhole plates, manhole plates, handhole gaskets, manhole gaskets, tube plugs, boiler sections, assembly parts and controls.

We have recently expanded our product line to cover a wide range of plumbing, heating and HVAC products that will help you on the job. Our new line of TOSOT minisplits are competitively priced and come with a generous manufacturer warranty.

Handhole plates, manhole plates, boiler gaskets and LWCO controls for all the top manufactures can be found directly on our site. Waterside and fireside boiler gasket kits are fully stocked and ready to ship.

Smith Cast Iron boiler parts, Burnham, Peerless and Weil Mclain boiler parts are heavily stocked and ready to ship. If you are unable to find what you need on our site for industrial boiler parts, commercial and residential, please give us a call and speak with our experts. We will get you what you need to keep your water or steam boiler running.

Burnham and Peerless boiler nipples for section assembly, port seals and gaskets for Weil Mclain and H.B. Smith boilers are all in stock and usually ship out same day.

Boiler rope gasketing, flat tape gasketing, high temperature silicon, spray glue, observation port assemblies, sectional seals, boiler push nipples, tie rods, burner mounting plates, chamber kits, gauge glass assemblies, sight glass kits, flange gaskets, limit controls and domestic tankless coils are just come of the necessary replacement boiler parts that you will find at Oswald Supply so help you get the job done.

Boiler spare parts can also be purchased over the phone at your convenience. Our friendly and knowledgeable staff will be happy to help you find the right boiler part.