We were traveling and our Oasis 50k unit needed servicing as one of the circulation pumps was out. ITR sent me to Heat my Rv and John and his team had the parts needed to fix my system. They repaired the system and had us back on the road in a short amount of time. We waited in their lounge with our dod Sade. Thanks Hanna, John, and their son.

John Carrillo replaced our leaking (water) Aqua Hot and did an excellent job. Paid much attention to details, very careful not to spill any anti-freeze and to clean everything up afterwards. John has many years experience working with hydronic heating systems and his father-in-law (now retired) had worked for Aqua Hot for 20+ years. John said he still has his father-in-law helping out now and then. Combined experience in the family is 30+years working with hydronic heating systems. Very knowledgeable and professional. Honest and dependable. Right on scheduled appointment time and lets phone calls go to voicemail when working on my unit. Had all of the material needed to get the job done right and completed on a timely basis. I highly recommend John's services and will definitely have John work on my unit again. Steve Mondl 06/2017

Had trouble for years one part after another on a 18year old Hydro Hot. John was always helpful diagnosing problems. This year I decided to completely replace the unit with his remanufactured Aqua Hot 450 D. Had an RV tech help with the removal and install of new unit. Had trouble getting the heating side running correctly. Called John and explained what it was doing by text within hours he suggested that the supply lines were crossed. Switched supply lines and Bingo that was the problem. Would highly recommend John Carrillo for all your hydronic heater needs.