Project Profile

Hollis Montessori School


Eric Roth Photography
Eric Roth Photography

In any school, the first priority is the students. At Hollis Montessori School (Hollis Montessori), in Hollis, New Hampshire, that philosophy extends to the classroom. Redesigned around our Hyper-Heating INVERTER™ (H2i®) system, Hollis became the country’s first certified Passive House independent school. Our zoned comfort solutions provided a healthy environment and saved on cost – all without sacrificing aesthetics.

Our H2i system helps to handle the extreme fluctuations in northeast weather – from hot and humid to cold and dry. With class out for the summer and the schoolrooms unoccupied, increased humidity can prove costly. Architect David Ely said, “With no systems running…humidity can build up [causing] floor boards [to] warp. We’re mitigating that by running these units on a low setting, offering dehumidification.” Conversely, harsh winters are met with our system’s impressive functionality down to minus 13 degrees Fahrenheit.

That’s a pretty good deal given what energy consultant Jordan Goldman said: “It cost us about 10 percent more to put in passive design, but we expect a payback of just three years.” Indeed, Hollis Montessori now saves 85 percent of what comparable schools spend on energy.

For more on Hollis Montessori School read here.