Historic Church Energy Audit and HVAC Upgrades

After implementing all of the great advice from everyone here on my home energy upgrades, I am now working on upgrading our church. I’d like some thoughts on the HVAC… After implementing all of the great advice from everyone here on my home energy upgrades, I am now working on upgrading our church. I’d like some thoughts on the HVAC…Read MoreGreenBuildingAdvisor