my thermostat seems to have stopped getting my gas wall heater to turn on. It is a relatively old heater and a relatively new thermostat. Someone who came to look at it said they were incompatible but it had been working fine for years. The pilot light stays on and all the connections seem tight. any help much appreciated! More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.