Hi Gene,
It is a heater-it is a Brass Flame model BF 40
The controller on the back has a label with the following info:
Robertshaw-Grayson
7000MVRB - 4 - LC
758-716-441 Max 1/2 PSI
Lo 1.3 - Hi 3.5
For Use With Millivolt System Only
9530 Assembled in Mexico
Thanks for your help,
John
|