Construction Design-HRV or ERV

Balanced mechanical ventilation is code required in all new construction in my home state of Minnesota.  Indoor air quality has become a big topic with today’s pandemic.  My market uses HRV’s or heat recovery ventilators almost exclusively.  They work great at supplying the home with filtered fresh air and at controlling indoor humidity levels.  You can read more about HRV’s here. Continue reading “Construction Design-HRV or ERV”

Mechanicals-Floor Warming

When working as an energy auditor, I often see homeowners using under tile floor warming as a supplement heat source.  When working on custom tile jobs, I often install these systems.  These all electric heat sources add comfort by warming the tile, but can they be used as a source of heat for a room in a northern climate?  What do they cost to operate?  This weeks topic, electric floor warming. Continue reading “Mechanicals-Floor Warming”

The Energy Audit-Air Conditioners

Summer has arrived, bringing warm temperatures and higher humidity.  As a kid, I remember hot nights sleeping in the upper story of an old farm house, often also suffering from sunburn.  Now, I can’t imagine not having at least one cool room in the house for relief.  What a wimp I’ve become.  Many homes in Minnesota have some sort of air conditioning today.  This blog posting is going to discuss the different types, efficiencies, and operating costs of common air conditioners along with the basics of how they operate.
Continue reading “The Energy Audit-Air Conditioners”