Non-Condensing

We sell a lot of Rinnai tankless water heaters, I am talking pallets of these everyday! When customers call in though, they sometimes aren’t sure which model they are looking for. One of the questions we typically ask is, “Do you want a non-condensing or condensing model?” The most common response is, “What’s the difference?”

Let’s explore the answer to this question. Everyone is different, but if you ask me what the difference is, I am going to start with efficiency. If your customer wants to be green, then I push towards condensing. If your customer doesn’t care, then I am going to ask you where the heater will be located and how much venting you will need to install. If you tell me it is in the middle of the house and you need to run a bunch of venting, and you are able to find a place to drain the condensation, I will again push towards condensing.. If the unit is outside or you only have a short venting run, then