Rinnai water heater is amazing and keeps up well with our household of three children and four bathrooms. It comes with the two connection valves and TP valve needed to install it. Amazon recommends that you buy the tankless heater valve installation kit, but don’t do it. It’s all there. I ended up returning the kit. The heater is well designed and has a hanging bracket that makes installation very easy. Simply locate the heater, anchor the bracket, then lift the heater up onto it. This project is not for the novice. You do need decent plumbing skills to install. It was a full day’s work by myself installing the vents and all the lines but well worth it. Don’t forget that you need to perform maintenance on these heaters every year by pumping white vinegar through the flushing valves to de-scale it. You also need to clean the intake filter. Both tasks are easy to do and well worth the benefits of this heater.
It’s no wonder that everybody building a house or replacing an existing water heater system is looking to buy a tankless hot water heater. The convenience of having on-demand instantaneous hot water alone is enough.
Add the low maintenance costs, superb energy-efficiency, and the absence of an awkward rusty tank, and you can see why the tankless on-demand water heaters are so popular.