Peerless Tankless coils are all available at Oswaldsupply.com. We stock and supply Peerless Boiler residential and commercial tankless heaters for all models, series and sizes. ECT and the SCT steam coils. HEO Steam and Water coils. JO-JOT-2-2T steam boiler coils. LC boiler coils, 7, TPF, 60, 61, 81, WBV and ECT steam boiler coils. TC and CC boiler coils.