Actually, when I had the gas company install our new hig e gas boiler and the rinnai, the entire cost was almost a throwaway for the material and installation. Rinnai has its tech training requirements that Im sure that JTT has taken. (The computrer chippies and the coding for the gas unit alone required some specific knowledge of coding-Im sure that was not open source).
I am prfectly happy and we love the savings we are experiencing between the on demand gas water heater AND the entire gas heating system, our little farm is toasty warm and weve compared our bills from comparable periods. We are down almost 35%. Also, I had em install one gas fireplace into one of the hearths. (we already had a separate chimney liner for that chimney since we were using a wood stove). Weve burned the gas firplace and we are still down in our heatinmg bills.
They installed the gas tank, heating system, rinnai hot water, and gas fireplace all in 2 days (they did a follow up for several days and then came back and did final grading and seeding over the tank excavation.
I may install another water heater out in my workshop/ studio where I have a small bathroom and I think Ill add a shower . Im going to use the same guys that did my heting system, they were great and we only had one problem. The propane tank gage was not working proprly so they came out, unloaded the tank, popped off the gage and replaced it with another one. That took em all of an entire day (mostly the tank draining and the burning off the pressure took about 3 hours, then the refill took about 20 minutes