RenewAire RH electric duct heaters are designed to work in tandem with our residential and light commercial energy recovery ventilators (ERVs). These heaters are installed with 6″, 8″, 10″ and/or 12″ round ductwork, and they vary in kW sizes and single-phase electric power offerings. This allows for these round electric heaters to be applied to suit any project’s requirements for supplemental electric heating. Other applications include existing installations that require additional heat, increased heat, or simply replacement heaters. RenewAire heaters can be designed for 75°F comfort conditions or warmer, and since ERV supply air is ducted into the space, tempering outdoor air for space conditions or offering supplemental heat is easy and simple.