Can a commercial grade heater be installed in a residential application? Yes, a commercial grade heater can be installed if necessary in a residential application. Applicable Models Models: ALL COMMERCIAL MODELS Updated on April 17, 2021 Tagged: general Was this article helpful? Yes No Related Articles Noritz EZ Start + Bluetooth® App Changing Remote between F and C Does Noritz offer a recirculation pump? What is Title 24? What’s Your Heater Price/Cost? Download Technical Documents & Manuals