Chesapeake Heating and Cooling, LLC

Our home's gas furnace stopped producing heat one winter evening. The next morning, I called Chesapeake Heating and Cooling, and the company's [owner] technicians arrived a couple of hours later and quickly resolved the issue. Warmth again!
Reportedly, the boiler was suffering from a dirty flame sensor, so an emory cloth was applied to the device as a cleaning agent. Apparently, a little light "jiggling" took place which caused the flame sensor to get back to work. The charge/cost for the service was $99.00. The price of this company's house call.
Warnings were proffered that the furnace might stop working, again. I was told if that happened a new flame sensor world be required.
Sure enough, about two weeks later (on a Friday evening) an unpleasant chill crept into our house. I promptly called Chesapeake. the company owner asked me to locate, notate and text the boiler's model number. He said he'd get the price for the replacement part on Monday morning and have someone contact me later that day with pricing information.
My husband located and notated a number which seemed to be the model number, and I texted the information.
The following Monday and Tuesday passed with no call from Chesapeake. Finally, I called them Wednesday morning. the owner was apologetic, offered "some discount" for "forgetting" about us and promised to get back to me quickly. A quick call back later informed me the text was never received. Apparently, my text on Friday had not gone through. I was given another number and the information was resent.
Days (actually at least twelve of them) passed and no word came. Finally, I called again. I was told the number I'd provided was not the model number. So, I searched the furnace, again, and provided the only other numbers I could find. Again, not the model number. The owner said he would have to return to our house and find it, himself, if I couldn't locate it. 
Wanting to avoid another house call payment, I searched a third time. I realized the model number on the furnace plate was permamently obscured. Before calling the company, again, I located the paperwork received when the furnace was installed. I explained the issue to the company's owner and told him there was no definitive model number on the paperwork, however, one piece of the model information was circled. When I read the short letter/number combo to him, he told me that was the needed info.
Again, I was promised a quick return call. Again, days passed without word from Chesapeake. At this point, I consulted Angie's list and found a more responsive company to resolve the problem.