No score for this post May 29 2005, 4:31 AM

Two Styles of Block Thermostats
There were two different styles of block thermostats and this is covered in a 1958 LINC-MERC Service Bulletin. They are interchangeable. The problem is that the block thermostats are no longer serviced as LINC deleted them in early/mid sixty production. They are not necessary for normal operation. The diverters are.

Read this thread in it's entirety;

http://www.network54.com/Forum/message? ... 1093058276

There is complete information contained in past posts on this forum if you are wondering about the purpose of the design.