Hybrid Water Heaters

... watching contractors work on your house did you ever think- "wow these folks sure work like they work on their own homes?".... No? Sarcastic much? Wishful thinking? I thought so too. We all dread dealing with contractors as we know most of them are.... Dreadful to deal with. Facts. So that is how I felt too when I decided to switch my house from oil heat to electric. Due to the size of the house It was going to be a large project involving a complex setup of multiple condensers, air handlers and ceiling cassettes. I had in mind what I wanted, so I needed a contractor to look at my design and make changes as needed, provide input based on experience and execute it. The vendor would need to understand modern cold weather heat pump solutions and installations in a complex near- commercial environment. They also would need to understand integration with the heavily automated existing controls in my house. Like a good citizen I solicited several well- established HVAC vendors to provide me with quotes. I actually spent an hour or more with each one showing and explaining my property and current set up. All nine of the contractors said they can do it and will provide quotes. I got back... 3 quotes. But it wasn't a problem as I knew which vendor I will go with based on my interactions with them price notwithstanding. Ilija from Sumzero was the only guy that was technical enough and had sufficient knowledge to understand what the project involved and to make welcome changes to the specs and equipment based on load calculations. The installation went as planned. The team led by Paul showed up on time every day and worked extra hours to finish the job in a week. Remember the opening statement about contractors working like they work on their own home... This was how it looked and felt when I watched them work. No corners were cut and when I asked for a bit more here and there I was accommodated without any questions. Marcelo (lead tech) and the team worked hard and provided outstanding results. The last day presented a challenge where my existing controls needed to be integrated with the new controls. Daniel is their controls guy and our initial conversation was actually funny. I started to explain how I want the integration to work and Daniel interrupted me midway and finished my thoughts. Yeah- he is that good. Overall, I believe that companies like Sumzero are very very rare in the field. Knowledge, expertise, work ethics, communications with customer- it is all done well. So if you have an HVAC project regardless of its complexity- you should give them a call. You will not be disappointed. My 2 cents

The entire SumZero experience was fantastic from start to finish. Paul came out and did a nice walkthrough to give us a full understanding of exactly how our system should be sized and quickly got us estimates with all MassSave included (and they take care of all of it so you get instant savings). Jackson and Lara were great to work with and did a great job with the project walkthrough and getting everything scheduled quickly. The team uses a nifty app called ServiceTitan so you always know who is coming and get live updates on their arrival which is extremely convenient. When the team showed up for the installation, they had everything they needed and were great about communicating every step along the way and asking questions to make sure everything was just how we wanted it. The attention to detail for the install was top notch (see pictures), and we are really happy with their recommendation to use a Bosch heat pump and Trane furnace. This gives us dual fuel heat that automatically switches depending on the temperature outside to get the best efficiency and we can keep an eye on gas and electric prices to manually switch if rates spike. We also got an ERV to improve indoor air quality, it is still early but I think this will be a nice upgrade to the comfort of our home. Can’t wait to see how the Bosch does in the summer heat. All in all, the SumZero experience was smooth and every single person on the team was great to work with. Highly recommended!!

Worked with Raphael from SumZero on updating my residential heating and cooling system. He was very friendly, knowledgeable in heat pumps and patient with answering all my questions. Although, we could not land on a system that suits all our needs, he and his team were honest about why the system would increase my electricity usage and advised against pursuing it, rather than selling it. I appreciate their honesty and friendliness. I would trust them with heat pumps and I find comfort that they operated with high level of integrity.