Connect with us

Hi, what are you looking for?


Clean Power

Man Heats 4,000 Sq. Ft Home for $2.50 Per Day Using Passive Solar Technology

kosmer house

Why spend lots of money heating your house when nature can do it for you? Upstate New York resident John Kosmer has taken passive solar to a new level in his home, which only costs $2.50 a day to heat. That’s less than $1,000 a year of heating expenses in an area of the country that gets mauled with snow multiple times a year.

Kosmer worked with Building With Integrity and Adirondack Alternative Energy to construct his passive solar house. Four-inch thick rigid polyurethane is installed on the exterior walls and under the roof, while pre-finished concrete siding covers the exterior of the home.

But the real key to Kosmer’s low heating costs is his windows. 53 vinyl-framed Simonton windows are strategically placed throughout the house, letting sunlight into the white interior of the structure.

A wood stove also rises multiple stories into the atrium, where heated air is carried up into grilles in the attic ductwork. The air is then redistributed throughout the house, which stays at a temperature of 68 degrees.

A project of this magnitude may be out of your reach if you live in a 100 year-old poorly-insulated home, but it’s worth considering if you’re on the hunt for a new house.

Posts Related to Alternative Energy Sources:


Appreciate CleanTechnica’s originality? Consider becoming a CleanTechnica Member, Supporter, Technician, or Ambassador — or a patron on Patreon.
Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.

Written By

was formerly the editor of CleanTechnica and is a senior editor at Co.Exist. She has contributed to SF Weekly, Popular Science, Inhabitat, Greenbiz, NBC Bay Area, GOOD Magazine, and more. A graduate of Vassar College, she has previously worked in publishing, organic farming, documentary film, and newspaper journalism. Her interests include permaculture, hiking, skiing, music, relocalization, and cob (the building material). She currently resides in San Francisco, CA.


You May Also Like


While we are trying to find the recipients for the trillions of dollars aimed at reviving an economy bashed by Covid-19, and trying especially...

Clean Power

New Jersey State Senator Troy Singleton recently introduced the NJ Clean Energy Equity Act, S. 2484, to help low-income New Jersey families benefit from...

Clean Power

The names of the InterSolar Award 2019 finalists have been released ahead of the Smarter E Europe show, to be held May 15-17 in...


Building on our earlier Passivhaus 101 and Insulation R-Value articles, I'm now going to provide an overview here of the Passive Solar House Design...

Copyright © 2021 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.