Today didn't work like it was supposed to. Libbie called that the big heater in House 1 was not working. I did a lot of diagnosis taking things apart before I found out that the vent block switch on top of the heater tripped. I think it was affected by water dripping on it while it was hot. It tripped at a false temperature. It requires a manual reset so the heater was dead. I forced the Hot Dog to come on and take over with a jumper wire. I guess I need an emergency override. The system is built to switch the control out and use the big heater but not the other way around. In the meantime we smelled bad exhaust in house 4. The flame was rolling outside the box. I ended up cleaning a mud dabber out of 4 of the orifices on the burner to stop this and restore the flame to normal. While there I also replaced a section of bench top under heater 2 which was destroyed by crawling around on top of the bench. Dinner was pasta. I didn't paint in the foyer but I did sand the spackle job from yesterday and second coat a few areas with spackle.