Weil-McLain Ultra Series 4 399,000 BTU Condensing Gas BoilerWeil McLain Ultra Series 4 399,000 BTU Condensing Gas Boiler Weil McLain is a leading North American Brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners, and facility managers alike rely on Weil McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America,

Optional Hutch: Adds vertical storage and display space

outlet options 25 mm (1″) or 38 mm (1½″) for versatile installation

never use harsh

optimized for 4x5 large-format photography

Control Panel: Wipe knobs and controls gently

PVC venting

Installation and Maintenance: Easily access the bathtub's plumbing via removable exterior acrylic panels without instrusive maintenance

high‑quality images with a bright f/1

Door gasket maintenance: Clean magnetic door seals with warm

adjustable ergonomics for all user sizes

restaurant‑quality pasta with professional results each time

OUTSMART: Digitally controlled mode