I have a Rheem Integrity 26 continuous hot water system. I want continuity of hot water when there is a power cut. Can you use a UPS with this? What size would you need?
The other alternative would be a diesel generator that I could just unplug the unit from the house and into the generator. Would a MSW one work or would I have to go down the more expensive route of a PSW? What size would I need?