What does zero clearance requirement for Rheem water heaters mean?

Zero clearance requirement is in reference to installation. This implies that when needed during installation, Rheem’s line of hybrid electric heat pump water heaters can be installed directly up against a wall. However, competing products require several inches of clearance. Meaning, there has to be a minimum distance between any wall and the water heater. Rheem designed their line of heat pump water heaters to have an outlet vent.

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