Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit

Cannot find the right replacement Rinnai Water Heater

catchfired Member Posts: 1
edited December 2020 in Domestic Hot Water

I have an old Rinnai Water Heater (indoor commercial grade) that has just stopped working. I am trying to find a replacement that I can buy but like the one I have right now is a very old model that Rinnai does not manufacture anymore. According to the manual one I have right now is Model R53i / V2532FFUC or V2520FFUC. I just have called Rinnai customer service, and the representative told me that Rinnai CU160 will be the similar one the I can buy. But it seems like CU160 is a residential water heater, and I am a little hesitant to buy this.

Also, it seems that CU160 has a twin vent system while mine has a single vent. I am also looking at V75IP which looks really similar to my current one, but it seems like it is for a home, not for a commercial.

Anyone can tell me which one I could buy to replace my broken water heater? Thank you so much