Jeff did a great job answering my questions and was very knowledgeable about our system. The current ecobee thermostat installed by the previous home owner was more than this old house needed and we just wanted it replaced with a simple model which trouble free provided. It was a little more pricey than I expected but the money that will be saved in the future was totally worth it. I Highly recommend this company and will definitely use them again for all our plumbing, heating and cooling needs.