From Attic Access Challenges to a Cooler Garage: A Heat Pump Retrofit

A complex attic removal led to a smarter heat pump water heater installation.
See how Old Blue Plumbing improved service access while helping create a cooler garage.

Problem

When the original 80-gallon electric water heater in a 2.5-bathroom home built in 2009 needed replacement, its attic location presented a significant installation challenge. Removing the large tank from the attic would require specialized equipment, and installing another unit in the same location could make future maintenance and replacement equally difficult. Eddy, a master plumber with Old Blue Plumbing, recommended relocating the new heat pump water heater to the garage to improve accessibility and create a more practical long-term installation.

Solution

Eddy led the installation with support from two plumbing assistants and a licensed electrician. The Old Blue Plumbing team used a motor-powered hoisting system to safely remove the existing 80-gallon tank from the attic. Because the garage was accessible through the attic, the crew rerouted two new water lines from the original location to the new installation area.

The electrician installed the required 240-volt, 30-amp electrical connection for the heat pump water heater. Condensate drainage required an additional solution because nearby stairs prevented the team from running a gravity drain line next to the unit. The crew installed a condensate pump, routed the line into the attic, and connected it to an existing drainage line.

Result

Relocating the water heater created a safer, more accessible installation for future service and replacement. The heat pump water heater also draws heat from the surrounding air, helping keep the garage cooler and more comfortable during hot summer months. Through careful planning and coordination, Old Blue Plumbing overcame the home’s access, electrical, plumbing, and condensate drainage challenges. The result was a clean, serviceable installation and peace of mind for the homeowner.

Final Thoughts

What began as a complex attic replacement became a repeatable model for heat pump water heater retrofits. Through careful planning and trade coordination, Old Blue Plumbing created an accessible garage installation that addressed plumbing, electrical and drainage requirements. The project provides a proven approach for delivering consistent results in similar homes.

Learn more about the Rheem^® ProTerra^® family of heat pump water heaters.