Hawk Home Services

I purchased a tankless hot water system (Rinnai Rx199iN) which cost $4,746.00 for purchase, installation, and HST. This was Hawk's suggestion once I explained my needs: I have a tall house with a Grundfos pump that recirculates hot water to the upper floors. I stressed that I need a new hot water system AND that a pump is an essential part of water circulation in the house. In multiple phone calls and an initial house visit to figure out our setup, I indicated clearly and repeatedly that if my current pump does not work with the Rinnai Rx199 then what pump do we need?, or does Rinnai sell a tankless with its own pump (built-in or as an accessory which I had researched online)? Was assured that my existing pump would work with tankless system Hawk recommended. Well it does not. We now wait up to 2 minutes for warm water to reach the top floor of our house... what a huge waste of water. I have made multiple calls and complaints that led to two service calls: the Hawk plumbers and technicians sent for these calls had no suggestions except to note that the wrong system was installed... which is exactly the situation I sought to avoid by researching tanks myself, having multiple phone calls with Hawk, and multiple service calls including the installation and follow-up house calls. They no longer return my phone calls.