Mounted boiler directly to uneven stone wall. Should have been mounted to a plywood back plate as per manufacturer instructions.
Caused enclosure to twist and produce large vibration noise.
Also instructions call for 2 pumps Installed . One before and one after the boiler. Only one was installed. They have been here 3 times to tell me we will think about it only to have nothing resolved. I wouldn't hire this company to light a tea light. Do not employ under any circumstances.