How to retrofit fossil-fuel boilers for electric space heating, from DOE

Posted by Johann Nacario — July 19, 2024 — Are you looking for ways to electrify your large commercial or multifamily building heating plant? When it comes to electrifying large buildings, there are limited design resources for existing building boiler retrofits, so the U.S. Department of Energy’s (DOE) Building Technologies Office Commercial Building Integration Program developed the Guidance Document on Space Heating Electrification for Large Commercial Buildings with Boilers.

Boilers used for commercial buildings in the United States are typically fossil fuel fired. Image courtesy of DOE

The guide summarizes key considerations for people seeking to retrofit existing large commercial and multifamily buildings, particularly those that currently heat spaces using fossil fuel-fired boilers. It is meant to provide an overview for building owners, contractors, and other stakeholders involved with heating, ventilation, and air-conditioning (HVAC) about possible design and purchasing decisions.

Graphic courtesy of DOE. Click to enlarge.

Inside, you’ll find discussion of motivations for electrification, electric space heating technologies, boiler retrofit evaluations and processes, and other project considerations. You’ll also find case studies that demonstrate best practice and lessons learned.

Read the Guidance Document on Space Heating Electrification for Large Commercial Buildings with Boilers at DOE.