Rinnai RU98IN Condensing Natural Gas
Rinnai RU98IN Condensing Natural Gas 9.8 GPM provides 96% thermal efficiency. Well suited for large homes.
“This unit provides plenty of hot water for us allowing us to use several outlets at once. Note that we are on a well system in Northern Illinois so the cold rise GPM I think puts us close at 6 GPM. What was also very surprising to us is that this unit is super duper quiet, You cannot even tell this unit is on if it was not for the red light in the front. I have read complaints about waiting for water, cold surprises, etc… Well for us using the old tank heater we too had to wait for water and we too would get cold surprises if taking a shower after someone else took one 5-10 minutes earlier. So this is no different with this new tankless unit and if we have to wait longer for hot water we do not notice it.
In summary we are very happy with this unit so far and knowing we have unlimited hot water is very nice when you have relatives over all taking showers one right after another. If you can DIY you will save A LOT of money plus with the small savings in gas every month over the long haul I expect the savings to pay for the unit itself. I paid $1300 for the unit and I get a $300 tax credit. Let’s just say I spent another $350 for the pipings and other materials I needed for the install. That’s a total of of $1350. If I save $120 a year in gas and it lasts 20 years well you do the math. In any event savings or no savings we are very happy and would never go back to a tank water heater.”