I have two mpo147-dvs. They have been nothing but problems. I do not believe they were installed correctly and I have had well over 10 different technicians look at this system and have spent thousands over and above installation to maintain and keep them running. I am an electrician not a boiler tech. I do not want to diy. I want to pay a qualified person who can get these (I have TWO) running right and who will do maintenance and emergency calls. I live in RI and have just had techs here for 10 hours yesterday and although it was great that they showed up and they got it running, I can't help but think that I am throwing good money after bad by fixing this system. They suggest changing the guns to Reillo. They say the mpo147-dv is a nightmare and no one likes them. I tend to agree as they have never run correctly. What should I do? I have lockouts due to wind blowing back on the vents and causing carbon build up causing the eye to not see the flame. I built a wooden "wall" to prevent wind from directly hitting the vents while allowing the vents to breathe. Still have the problem. I have the double line system. The tanks are outside but in a shed and haven't problems with gelling until this year. My current tech did a great job of getting the system going but he will not do emergency calls and I have a tenant with a kid. I called my old company Malloy Oil and they refuse to give me a service contract on these systems because they are terrible and they didn't install them. I understand that but am in a pinch. I cannot get hod of the guy who installed them he never even finished the job so really 2 guys installed them and neither did it right. Gratefully,m Malloy did do the emergency call. The tech replaced the nozzle because it was a different one than the factory specs but my last boiler guy said the nozzle he put in will work better. The first tech also replaced the igniter and a gasket. He also said there was a clogging in the oil line and had to do the push pull to unclog it and he dumped 2 bottles of "HOT" into my tank. I know it was getting plenty of oil but I let him do his thing. He got it running after 4 hours. Ten minutes after he left my carbon monoxide sensors went off and I had to open all the windows but that did the trick and they haven't gone off since. An hour after that, steam was shooting all over the basement out of the high vent and I had to shut it down and call them back. They came back and said the control box failed to shut down the boiler after reaching temps over the high limit of 180. The new tech changed the control box 4 times and finally had to call his boss who figured out the thermocouple in the well had a different diameter than the new control boxes. The controller was working fine before they came, now they go though 4 of them? Why did the boiler go over 180 in the first place? Was it the hot chemical that he poured in the tank earlier causing it to burn hotter? They say they have to come back and replace my well to accomodate the new thermocouple. Also, they say my low water cut of needs replacing. That was working before yesterday too. Who can I get who I can trust to set this system up correctly? Service companies bill me hourly. I can't afford 2000.00/year per system and still not get good results. What should I do?