Bill,
Thanks for an excellent suggestion! But so far not successful -- it's an Intertherm 1400-48. Tried that on Google, zilch; then "1400-48," which got me 1,200 hits. Looked through 250. then tried variations - "I1400-48," "Int 1400-48," etc. (when I worked in retail we would often shorten mfrs. #'s to make a SKU.)
Christian