The U-boat I was on almost blew up! I was in the military in the submarine when I got news that our furnace was partially pressurized & hardly working.
The captain ordered the summering Heating, Ventilation plus A/C service pro to take a look at the errant furnace but the Heating, Ventilation plus A/C service pro could not find out what was wrong with it.
The U-boat captain called for myself and others to ask me if I would take a look at the furnace since I had been an Heating, Ventilation plus A/C service pro for numerous years before I joined the military. I went to the furnace & took an enjoyable look at it. I noticed first of all that this was a tepid water boiler heater system that was unique because it was made for a submarine. When I was a pro Heating, Ventilation plus A/C serviceman I never had to work with a submarine tepid water boiler. I had diagnosed numerous other uncommon kinds of furnaces including gas furnaces, oil furnaces, electric furnaces, & even normal tepid water boilers & sectional heaters. But s submarine tepid water boiler was an uncommon story but, & I wasn’t sure how I was going to service it but I knew that if I didn’t both of us would all drown. I asked the other Heating, Ventilation plus A/C service pro to assist myself and others & bring all of his heating & cooling component available. We jobbed together to carefully release some of the pressure in the tepid water boiler to prevent it from blowing up. After releasing some pressure both of us realized that the ductless heat pump was being overworked & causing pressure buildup in the tepid water boiler. All of us fixed the ductless heating pump & put the entire France back together & it worked as if it were brand new and modern from that afternoon forward.