rinnai

I have a client who got convinced to install a tankless water heater (Rinnai RL75iN) instead of a boiler. Now he has called me. The system isn’t quite keeping up set at 140, and he can’t afford to install a boiler at the moment. I’m trying to help him out. Does anyone know how to get that Rinnai...

Afternoon all, I'll try to be as thorough as possible. Issue - I have a Rinnai tankless heating solution for in-floor tiled kitchen and the garage floors, it is intermittently turning on when called for by the thermostats. The system It's a Rinnai v53i. The left loop is the kitchen floor...

I've had issues with two different Rinnai tankless water heaters leaking from the heat exchangers over the past several years. I'm now on my second Rinnai tankless water (an RL94i) within the period of only 9 years. The first unit, which was installed when the home was built, started leaking...

Hi, My question is, is there way to have both a dedicated hot water loop AND use a thermal bypass valve? I'll explain: My not-so-great contractor built my brand new house with a dedicated hot water return loop (on a Rinnai RUR) that only covers one area of the home. Then the hot water...

I have a Rinnai RUR199eN which was installed in February. Since installation, I’ve wondered about the apparent low flow rate. I did some testing today. I have at least 10.5 GPM on the cold side. It may be greater as the only way I had to measure was from two 1/2 hose bibs running at the same...

We are at 7,400’ altitude, temps down in the teens. Water in the bathroom farthest from the unit does not get hot until we bang on a valve with a hammer. Really. I’m not sure what the valve is, some sort of backflow preventer? We have had the valve replaced once already. Are units with that...

Hi I have a Rinnai tankless water heater all of a sudden when filling the the tub the flow has dropped way down and and it it’s not as hot as it should be. When I pull up the codes in the control r app it’s all zeros. I replaced the Water Flow Servo & Sensor gas pressure is where it should be...

Hi All, I'm buying a home built in 2013 that uses a tankless Rinnai water heater. I know the current owner's never flushed or serviced the unit, and I'm trying to decide the best course of action. 1) The seller can hire a plumber - probably the cheapest they can find - to service the unit...