Seymour Krieger House

This house, located in Bethesda, MD, was designed in the 1950s by internationally renowned modernist architect Marcel Breuer.  It is known as the Seymour Krieger House and is listed on the National Register of Historic Places.

The Seymour Krieger House currently is owned by an architect, and he wanted to restore the mechanical system while keeping the architectural integrity of the structure intact.

The house was originally heated by a radiant floor heating system.  The original boiler was still in place and operational, but the wrought iron radiant piping has corroded and was leaking in multiple locations.

We discussed multiple alternatives but in the end, the owner decided to go back with radiant floor heat.

The bluestone floor tiles were painstakingly numbered and removed.  The concrete overpour, along with the original wrought iron radiant tubing, was removed.

We installed the new Rehau PEX radiant tubing system, and a new concrete slab was poured.  The flagstones were carefully placed back in exactly their original positions.

We updated the entire mechanical system by installing a new Triangle-Tube boiler, HTP DHW tank, Viessmann solar heat and DHW system, and new Carrier high-efficiency AC system.

We re-piped and re-controlled the radiant system to allow for multiple zones.  The Viessmann solar system will contribute to space heat when the DHW load is satisfied.

The clients were a joy to work for and appreciated the hard work done by my crew on this difficult and challenging project.

— Dan Foley